Atrazine is an herbicide that prevents plant growth by inhibiting photosynthesis. Atrazine works by binding to proteins in the electron transport chain of photosystem II. Once atrazine binds to the proteins, electrons can no longer travel down the chain to reach photosystem I.

Based on this information, how does atrazine stop plant growth?

A.
It prevents water from releasing oxygen, which is needed by the light-dependent reactions to fix carbon.
B.
It prevents the formation of NADH and FADH2, which are needed by the light-independent reactions to fix carbon.
C.
It prevents chlorophyll from creating electrons, which are needed by the light-dependent reactions to make sugars.
D.
It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.

Answers

Answer 1

It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars. Thus, the correct option is D.

The herbicide atrazine binds to the D1 protein and prevents plastoquinone from binding. By preventing plastoquinone from binding, the photosynthetic transport of electron is disrupted, putting the generation of ATP and NADPH in the chloroplast at risk.

 

What are herbicide?

Herbicides are chemicals that are used to control or manage unwanted vegetation. Herbicides are most commonly used in row-crop farming, where they are treated before or during planting to increase crop productivity while reducing other vegetation.

This results in the plant's inability to fix carbon dioxide and provide the nutrients it needs to survive. A halt in electron transmission causes oxidative stress and the generation of radicals, which leads to rapid cellular death.

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Related Questions

Match the structural formula to the chemical formula for this substance

Answers

Answer:

D.) HOCOOH

Explanation:

Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.

As of January 1, 2010 what is a legal requirement for a person born on or after january 1, 1988 to operate a vessel powered by a motor of 10 horsepower or greater in Florida waters

Answers

Florida law requirements are as follow.

What are the Florida law requirements?

Florida law requires a person born on or after January 1, 1988, to use a vessel powered by a motor of 10 horsepower or more prominent on Florida waters to meet the following:

Successful realisation of an approved boating safety course.Possession of a Boating Safety Education Identification Card issued by the FWC.Thus, a legal requirement for an individual born on or after January 1, 1988, to use a container powered by a motor of 10 horsepower or more wonderful on Florida waters is possession of a Boating Safety Education Identification Card issued by the Florida Fish and Wildlife Conservation Commission (FWC) after the triumphant completion of an approved boating safety course.

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A steady state is associated with which of the following terms
Static system
Open system
Closed system
Non-living system

Answers

Closed system …………….

What geological change and event occurs at a convergent boundary?
Plates collide, and a mountain is formed.
Plates collide, and a rift valley is formed.
Plates move apart, and a trench is formed.
Plates move apart, and a volcano is formed.

Answers

Answer:

Plates collide, and a mountain is formed

Explanation:

if plates are of equal densites when they collide they will push up and create a mountain chain

When you dissolve both compounds in water which form of each going to predominate in the solution?

Answers

Answer:

nu știu nu vreau nu pot sczzzz

All of the following are factors affecting the rate of photosynthesis except.
1. temperature
2. ultraviolet radiation
3. light intensity 4. carbon dioxide presence.

Answers

Answer:

Ultraviolet radiation does not influence photosynthesis

Answer:

Ultraviolet Radiation

Explanation:

The correct answer is ultraviolet radiation. Temperature, carbon dioxide presence, and light intensity are all critical factors in determining the rate of photosynthesis.

A forested area contains deer, wolves, blue jays, squirrels, and many plant species including the staple diet of the deer. Alfalfa. During
the construction of a mall nearby, humans have changed the flow of water in the area, drying up a stream that feeds the major patches of
Alfalfa. What will likely happen in this environment?
1. The deer population will shrink
II. The wolf population will shrink
III. The blue jay population will increase
IV. The squirrel population will migrate to a new location
A. I, II and IV
B. Just IV
C. I and III
D. I and II

Answers

Answer:

The Answer tothe questioN should be D

Explanation:

its is D because if the deer decrease that affects the wolves as well because its their food source. One affects the other

As per the given scenario, deer population will shrink as well as wolf population will shrink. The correct option is D.

What is competition?

Competition is most commonly determined by the interaction of individuals competing for a small quantity of a shared resource.

It can also be characterized more broadly as the indirect or direct interactions of organisms that results in a change in fitness when the organisms share the same resource.

When members of multiple species start competing for the same resource, this is known as interspecific competition.

Woodpeckers and squirrels frequently end up competing for nesting rights in the very same holes and spaces in trees, while African savanna lions and cheetahs compete for the same antelope and gazelle prey.

As in the given case, the water supply is being limited by the humans, it will most likely to cause the competition for the resource. It will lead to shrinkage of deer population along with wolf population.

Thus, the correct option is D.

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Crops such as corn along
with plants such as
pansies, marigolds, and
cucumbers fall into which
of these categories of
angiosperms?

Answers

According to the research, pansies, marigolds, and cucumbers fall into dicots angiosperms category.

What are angiosperms?

They refer to vascular land plants that produce seeds, flowers, and fruits.

It is classified according to the number of leaves, when the seed germinates and two cotyledons are produced they are categorized as dicots.

Therefore, we can conclude that according to the research, pansies, marigolds, and cucumbers fall into dicots angiosperms category.

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Answer: Annual plants.

Explanation:

In experiments intended to measure conformity it was found that

Answers

In experiments designed to measure compliance, observed participants were found to tend to obey authorities, even if their orders contradict individual common sense.

What does the Milgram experiment say?

The Milgram Experiment (or Milgram Experiment) was a scientific experiment developed by psychologist Stanley Milgram. The experiment aimed to answer the question of how observed participants tend to obey authorities, even if their orders contradict individual common sense.

With this information, we can conclude that Milgram wanted to investigate what circumstances led men to commit barbarism and observe how far they would be able to go if there was a superior responsible for their actions or if he gave them instructions to violate integrity and infer pain to the other.

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Describe artificial selection, and explain how it is different from natural selection.

Answers

Answer:

Starting with natural selection, the most robust and most intelligent animals survive over the weakest. The weak animals eventually die off because they can't keep up with nature. Artificial selection isn't natural; certain species are being targeted on purpose and decide whether to stay alive or not. At this point, it is not at all about whether the species can survive or not because it's most likely being protected.

Help please !! Urgently I need thus as fast as possible pleaseee

Answers

Explanation:

the plant will show positive phototropism..it will bend towards the direction of sunlight entering the box through the opening(the door)..

if it is watered , then the roots might grow and the plant would replenish, if not .then at some certain point, it won't show phototropism any longer..

hope this helped

Genes express themselves at different times because

A. this saves time
B. this saves space
C. this saves energy
D. Only b and c are correct

Answers

Answer:

D

Hope this helps!

what is cross breeding.write the types of breeding of goats.​

Answers

Answer:

Cross Breeding is defined as mating two purebred organisms to produce offspring known as a Hybrid. The most common goat breeds include:

Boer goatAmerican PygmySaanen goatDamascus goatAngora goatBeetalSpanish goat

How many moles
are in a bag of CaCl₂ that weighs 18.14kg

Answers

Moles =grams/molar mass

1kg=1000g
18.14kg=18140g
Mo(CaCl2)=(40.078)+(35.5*2)
Mo= 111.078

Moles = 18140/111.078
Moles = 163.3086659824628

Hope this helped :)

Which organism does a virus infect?
animals
bacteria
plants
fungi

Answers

A virus can infect animals, bacteria, plants, and fungi.

A virus can infect a range of organisms, including animals, bacteria, plants, and fungi. Viruses are unique infectious agents that require a host cell to replicate and complete their life cycle. They possess specific mechanisms to infect and hijack the cellular machinery of their host organisms.

In animals, viruses can cause a variety of diseases, ranging from the common cold to more severe conditions such as influenza, HIV/AIDS, and COVID-19. Bacteriophages, a type of virus, infect bacteria and can play a crucial role in regulating bacterial populations in various environments.

Plant viruses can impact agricultural crops, causing diseases that affect crop yield and quality. They can be transmitted through vectors such as insects or through infected seeds.

Fungal viruses, known as mycoviruses, infect fungi and can have diverse effects on their host fungi, including alterations in growth, pathogenicity, and reproduction.

Overall, viruses have evolved to exploit a wide range of organisms, adapting to specific host cells and causing various outcomes depending on the virus-host interaction.

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HELP PLS FOR BRAINLIEST AND THANKS

see attached image

Answers

Answer:

none of the other answer

Explanation:

because the chance of CF in child depends in having disease both father and mother if one of them have the disease then its maybe 1 in 1000 or more

Answer:

your answer is correct 1/4

Explanation:

since both parents are heterogeneous so the percentage that their new child will have this disease is 1/4 and this disease needs two alleles of cftr since it is recessive

A template strand of DNA contains nucleotides in the following proportions: 14% adenine
(A), 33% thymine (T), 21% cytosine (C), and 32% guanine (G). What can you expect
the proportions of the nucleotides to be in the newly formed complementary strand?

Answers

Answer:

The proportions of  nucleotides in the newly formed complimentary strand will be:

14% Thymine (T), 33% Adenine (A), 21% Guanine (G), 32% Cytosine (C).

Explanation:

In a double stranded DNA, the nucleotides of one strand binds with nucleotides of another strand through hydrogen bonds.

Adenine binds with thymine by two hydrogen bonds (A=T) and guanine binds with cytosine by three hydrogen bonds (G≡C).

So, the complimentary strand must have

thymine equal to the amount of adenine in template strand.adenine equal to the amount of thymine in template strand.guanine equal to the amount of cytosine in template strand.cytosine equal to the amount of guanine in template strand.

What is Animalia Kingdom​

Answers

[tex]{\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}[/tex]

It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.

I hope I've helped : )

Answer:It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.Explanation:

[tex]\sf XD [/tex]

name the cell organelle which is abundant in muscle cells​

Answers

Answer:

Mitochondria is the cell organelle abundant in muscles cells.

Answer:

Mitochondria

Explanation:

Mitochondria is the power house of a cell as we know so as aerobic respiration takes place the mitochondria is always actively ready to release ATP(Adenosine triphosphate) also as energy

11. Given only the structure of the four nucleobases and the linear structure of D-ribose, draw the following molecules: r(GUCA) and d(GTAC). Do not forget the 5'-phosphate. (Some version of this question will be all or part of question #1 on the first examination. Now you know.).



12. What is the monomer precursor for the synthesis of nucleic acids? Why is this reaction energetically favorable? Are new monomers added at the 5'-end of the chain or at the 3'-end of the chain?



13. What is Chargaff's rule?



14. If the genome of an organism contains 32% A bases, what is the % of C bases?



15. Explain why Franklin's x-ray images of DNA fibers suggested a double helical structure for DNA.

Answers

Why is RNA the precursor to DNA?

The speculation that RNA preceded DNA and proteins in evolution. In the earliest cells, pre-RNA molecules could have had mixed genetic, structural, and catalytic features and those features could have progressively been changed with the aid of using RNA.

The presence of the X form withinside the diffraction sample indicated to Franklin that DNA strands have been helical. Each sprint of the X form marks the repetition of atoms, or atomic repeats, in DNAChargaff rule: The rule that during DNA there may be constantly equality in amount among the bases A and T and among the bases G and C. (A is adenine, T is thymine, G is guanine, and C is cytosine.) Named for the tremendous Austrian-American biochemist Erwin Chargaff (1905-2002) at Columbia University who found this rule.The crucial physiological roles performed with the aid of using the nucleic acid precursor rNTP and dNTP molecules in people has come to be obvious because the Nineteen Seventies with the aid of using the popularity of 28 exceptional inborn mistakes of purine and pyrimidine metabolism.

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A movement that keeps the distal end of the body segment fixed in one location describes what type of kinetic chain moveme

Answers

Answer:

Closed Chain

Explanation:

A closed chain refers to a position where the most distal aspects of a given extremity are fixed to the earth or another solid object. This fixed position alters the movement of the joints and surrounding musculature up the chain.

Suppose, there are two identical planets just like Earth. On planet P, only exhaustible fuels are used while on planet Q only inexhaustible fuels are used. Which among the two planets will have no issues of global warming and pollution?
(A) Planet P
(B) Planet Q
(C) Both planet will face these problems
(D) Cannot say

Answers

Both planets will face these problems

Select all the correct answers.
This chart presents data on greenhouse gas emissions caused by human activity from 1990 to 2012. Which questions would help clarify this
evidence?
Emissions (million metric tons of
carbon dioxide equivalents)
8,000
6,000
4,000
2,000
1990
U.S. Greenhouse Gas Emissions
by Economic Sector, 1990-2013
1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012
Year
Industry
Electricity generation
Residential
Transportation
Agriculture
Commercial

Answers

The correct question is what caused the dip in greenhouse emission in transportation after 2007 and is denoted as option E.

What is a Graph?

This is defined as a pictorial representation of data or variables in an organized manner.

From the graph, we can infer that there was a decrease in greenhouse emission from year 2007.

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3. "From a tiny seed, an informative observation may
grow" Let's Do Fun Activity.-
a) Put some soil in two jars, sow some seeds (chickpea,
kidney beans)in them.
b) Keep the jars in sunlight and water them regularly.
c) When the plants grow from the seeds then close one
jar and observe for 2-3 days.-
What do you observe? Write in your notebook?

Answers

The plant in the closed jar will die eventually due to lack of oxygen.

The plant in the jar that is not closed will live and grow.

In the absence of oxygen the plant will be unable to perform photosynthesis.

What is photosynthesis?Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds. Productivity of agricultural crops directly depends upon the rate of photosynthesis.

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A population of Poison dart frogs can be red (RR), orange (Rr) or yellow (rr). The allele frequency of the mainland is R: 0.5 r. 0.5. A small
group of the frogs moves to an island off the mainland. If the group is composed of 4 red and one orange frog, what would you expect to
happen to the allele frequency?
A. Increase towards the R allele
B. Increase towards the r allele
C. Stay the same as the mainland
D. Frequency of both alleles would decrease

Answers

Answer:

A

Explanation:

it will increase with a 4:1 ratio

As per the given scenario, the allele frequency will increase towards R allele. The correct option is A.

What is allele frequency?

The number of times the allele of interest is observed in a population is divided by the overall number of copies of all the alleles at that particular genetic locus in the population to calculate the allele frequency.

In the given scenario, as group of the frogs moves to an island off the mainland, the allele frequency of R will increase.

Thus, the correct option is A.

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according to newtons laws of motion, what causes an object to change its state of motion

Answers

Answer:

Newton's first law of motion states that there must be a cause which is a net external force for there to be any change in velocity, either a change in magnitude or direction.

Earth scientists have concluded that the methods of harnessing energy that have been used over the past tWO
centuries, such as the burning of fossil fuels, are causing climates around the world to change more quickly and
suddenly than ever before in human history. Evidence includes increased air temperatures, rising sea levels, and the
shrinking of glaciers in Greenland, Alaska, and other regions of Earth. The most complex level of organizational
hierarchy that climate change could potentially affect is Earth's
O biosphere.
O communities.
O organisms.
O populations.

Answers

Answer:

populations

Explanation:

Read the scenario.

A biologist is studying golden frogs that live in cool streams running through the rain forests of Central America. The biologist conducts a survey of the population and counts over 100 frogs in one mile of stream. The biologist returns to the same location one year later and counts only 20 frogs in that same stretch of stream. The biologist wonders why there are suddenly so few golden frogs.

The biologist also observes that a mining company has set up a copper mine only a few miles from the stream. By reading studies on copper mining operations in other parts of the world, the biologist learns that the wastewater runoff from the mines is highly acidic and contains potentially toxic compounds.

Which part of the scientific method is best illustrated by the biologist wondering why there were so few frogs in the second year compared to the first?

a making an observation and asking a question

b collecting data

c setting up an experiment

d forming a hypothesis

Answers

Making an observation and asking a question is a part of the scientific method that is best illustrated by the biologist wondering why there were so few frogs in the second year compared to the first. Thus, the correct option is A.

What is the Scientific method?

The scientific method may be defined as the procedure of objectively confirming attributes through testing and experimentation. It includes observation, hypothesis, prediction, operating an experiment, and finally investigating the results.

A biologist collected the data on the frog population before industrialization, but after a year there should be a considerable reduction in the population of frogs observed by a biologist. The cause of it is also determined by the biologist very well.

Therefore, the correct option for this question is A.

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Which short-term environmental change is
to directly affect a population of egrets along the coast
of Florida?

O drought
O earthquake
O forest fire

Answers

Answer:

The answer to your question is O drought

Explanation:

Birds live in place surrounded by water. Therefore meaning that if there was a drought they could be in danger.

I hope this helps and have a great day!

The question to your answer is O drought

Based on your knowledge of immunological memory explain to your patient the physiological mechanisms that underlie active immunity and how it protects you from infections. Be sure to include a description of primary and secondary immune responses in terms that she will understand.

Answers

Immunological memory refers to the ability of the immune system to react previous antigen infections.

What are primary and secondary immune responses?

The primary immune response refers to the initial interaction between the immune system with  pathogenic microorganisms (e.g., bacteria).

The secondary immune responses refer to the second contact with the same pathogenic organism, which enables to the organism create specific antibodies against this pathogen through a process called immunological memory.

Active Immunity is a term used to refer to a type of acquired immunity caused by previous exposure to a pathogenic microorganism and/or vaccine inoculation.

Immunological memory leads to a faster and better response of the immune system against pathogen reinfection.

In conclusion, immunological memory refers to the ability of the immune system to react previous antigen infections.

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Which of these statements is NOT true of the phylogenetic tree? 8th grade 50 POINTS+BRAINLIEST: How do you graph a quadratic equation in vertex form when the equation is a perfect square? Use x -4x+4 as an example On the unit circle centered at the origin [tex]\left(x^{2}+y^{2}=1 \right)[/tex], we pick three points at random. We cut the circle into three arcs at those points. What is the expected length of the arc containing the point (1,0)? When you raise (almost) anything to the power zero, you get 1. What is the factored form of 6n - 24n + 18n?a.6n(n+4n+3n)b.6n[n -4n +3n]c.6n(n-4n+3)d. 6n(n +4n+3) Which is a key idea that belongs in a summary of this excerpt?Black women and German women both work in the fields as hard as men.The speaker has done a great deal of work, even more than most men.Women who perform the same work as men get paid half as much.Jobs such as keeping up with the cradler can be done equally well by both men and women. An appliance draws 3 amperes at 120 V (plugged into the wall). If the same appliance is run with a 12 V car battery, how many amperes will it need? the nurse encourages a woman with gestational diabetes to maintain an active exercise period during pregnancy. prior to this exercise period, the nurse would advise her to take which action? As you are working with a pivot table, you decide to change some of your source data. How will the pivot table recognize the change?. Fyllor Inc., a manufacturer of office equipment such as fax machines and printers, regularly imports component parts and then assembles them to make finished products. A recent increase in the import duty on component parts has led to an increase in the price of the firm's products, and this in turn has led to a drop in sales. In this scenario, the drop in sales for Fyllor Inc. can be attributed to its: impact of federal legislation on case management The value of acceleration due to gravity (g) on Pluto is about 0.61 meters/second2. How much will an object that weighs 250 newtons on Earth weigh on Pluto? Note that the value of acceleration due to gravity on Earth is 9.8 meters/second2. please help me its math 10 points During a NASCAR race a car goes 58 m/s around a curved section of track that has a radius of 260 m. What is the car's acceleration? What were the requirements to become an attorney 15 years ago? Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).Consider the equation. What is a sign of fraud in advertising a healthcare product?A. There is a return policy if it doesn't work.B. A celebrity endorsement.C. Health benefit claims that are based in research.D. It seems too good to be true. Polygon C and polygon D are similar. The perimeter of polygon C is 60 inches,and the perimeter of polygon Dis 12 inches. If one side of polygon C is 4inches, what is the length of the corresponding side in polygon D?A. 0.3 inOB. 20 inOC. 4 inOD. 16 ink when the money market is drawn with the value of money on the vertical axis, if money demand shifts leftward, then initially there is an: What distinguishes folk art from outsider art?