1. Animal cells have all of the following except:
Answer:
chloroplasts And Cell Wall
Explanation:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Answer:
I assume this is your question since I have seen this before.
Animal cells have all of the following except ________.
A. mitochondria
B. chloroplasts
C. a nucleus
D. Golgi apparatus
Answer: B
Explanation:
There are no choices to answer your following question, Please edit your question with a picture of answer choices or type it out properly next time. That will be greatly appreciated.
How is a spider's webs made?
Explanation:
spider webs produces silk thread to build their webs. The silk is produced in silk glands with the help of the spiders Spinnerets....The threads a spider used to construct its web begin as a liquid with a dry quickly in the air.
Which of the following is an example of how enzymes are catalyst?
a)Enzymes can alter the free energy change (ΔG) for a chemical reaction.
b)Enzymes increase the free energy of the reactants to make the reaction go faster.
c)Enzymes provide the activation energy for the reactions they facilitate.
d)Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.
Some students were discussing running the mile in PE. The students all agreed that the cardiovascular system was very important but they could not agree on what other system was important.
Which of the following claims and reasoning would be MOST beneficial in their argument? (AKS 2b)
A.
Student 2 said the digestive system was also important because it breaks down waste produced by running, which the cardiovascular system transports to all the cells.
B.
Student 3 said the immune system was also important because it releases sweat from the body while running, which the cardiovascular system will transport away from all the cells.
C.
Student 1 said the respiratory system was also important because it brings oxygen into the body while running, which the cardiovascular system transports to all the cells.
D.
Student 4 said the muscular system was also important because it produces nutrients in the body while running, which the cardiovascular system will transport away from all the cells.
Answer:
C
Explanation:
What is the main body system that regulates blood glucose levels? How does the human body return blood glucose levels to normal?
Answer:When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.
Explanation:
How do plants synthesize high energy carbohydrates?
the plants have utilized the energy of sunlight to produce glucose (and ultimately other carbohydrates, proteins and fats) and oxygen from water and carbon dioxide.
(hope this helps ^^)
A DNA strand has the sequence GTTCCAGAG. Which is the complementary strand of RNA? CAAGGTCTC AGGTTCACA CAAGGUCUC TGGAACTCA
Answer:
C. CAAGGUCUC
Explanation:
Since you are giving the complementary strand of RNA, Adenine (A) pairs with Uracil (U), Thymine (T) pairs with Adenine (A), and Cytosine (C) and Guanine (G) pair with each other. Thus, the answer would be CAAGGUCUC.
Does this make sense? Feel free to comment any questions you have! If this answer helped you, please consider leaving me a good rating and/or brainliest!!
The complementary RNA strand of the following DNA sequence: GTTCCAGAG is CAAGGUCUC.
TRANSCRIPTION:
Transcription is the process whereby a mRNA molecule is synthesized from a DNA template. During transcription, the sequence of DNA is used to synthesize the complementary mRNA sequence. Adenine pairs with Uracil (RNA) while Guanine pairs with Cytosine i.e. A-U, G-C. According to this question, a DNA strand has the sequence: GTTCCAGAG, the complementary RNA strand is CAAGGUCUC.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
The presence or absence of freckles is determined by one gene. The allele for freckles (F) is dominant and the allele for the absence of freckles (f) is recessive. A couple has several children. All of the children have freckles because their parents' genotypes can only produce children with freckles. Which of these are most likely the genotypes of the two parents?
Group of answer choices
A: ff and ff
B: Ff and ff
C: FF and ff
D: Ff and Ff
Muscle cells require more protein than others cells. What organelle(s) will they probably have more of, compared to other cells?
what are the proteins used in active transprot called
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. Which gas is the plant producing..
a
oxygen
b
nitrogen
c
carbon dioxide
d
hydrogen
Answer:
A
Explanation: plants give off oxygen not carbon dioxide
glucose molecules moving through protein channels is an example of what type of transport
A- Facilitated diffusion
B- Active transport
C- Passive transport
D- Osomosis
Answer:
B-active transport
Hope it will help
Thank you
What do the three nucleotide bases on an mRNA molecule (called a codon) provide a code for?
six amino acids
two amino acids
three amino acids
one amino acid
Answer:
c. three amino acids
Explanation:
i know this from my exam in fifth grade. your welcome ;)
An mRNA is made up of the 4 nitrogenous bases A,U,C and G where the thymine is replaced by U for uracil. An mRNA molecule is made up by a codon of three amino acids.
What is amino acid ?An amino acid is made up by the acidic as well as basic group where the acidic group is carboxylic acid and the basic group is amine group.
A codon is made up by the three amino acids where the three of the amino acids together called as codon makes up a nucleotide together and the molecule it codes for makes a long chain of proteins together making up the structure of the desired machinery as per signals and the mechanisms that are assigned to it.
A codon makes up the together the amino acid and then the chain and together it makes up the protein where the long polypeptide makes up the structure that is tertiary in nature.
Learn more about codons at :
https://brainly.com/question/967810
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Photosynthesis uses all of the following____ except
A carbon dioxide
B chemical energy
C light energy
D water
Answer:
The answer is B
Explanation:
It uses carbon, light, and water but not chemical because it doesn't produce.
Describe the design solution engineers and scientists developed to prevent contamination of Cleve
Answer:
Water_Work_Conservation.MAJELA.Answers.docx - 1 Describe...
Explanation:
the answer is in this link
Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?
a) Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
b) Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
c) Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
d) Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.
Answer:
I think it would be d.
Explanation:
Which statement is true about viruses?
O They are more complex in structure and function than bacteria
O They are eukaryotic cells
O
They consist of a nucleic acid surrounded by a protein coat
о O
They are usually not pathogenic
Answer:
option C is correct
Explanation:
virus are made up of nucleic acid and surrounded by protein coat
Which of the following is a way group behavior can help a human community survive?
What type of anaerobic respiration do humans go through?
Answer:
lactic acid fermentation.
Explanation:
Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.
Answer:
The answer for this question is lactic acid fermentation.
Explanation:
When we exercise, we have a lot of lactic acid already built in the muscles. This lactic acid needs to be oxidized into carbon dioxide and water. This is the reason why we start to breathe heavily after a workout session, because since we have a built up of lactic acid, the lactic acid now needs oxygen to be broken down.
Please help me
Where in a cell does most ATP production take place? Question 6 options:
A. nucleus
B. mitochondria
C. lysosomes
D. cell wall
Answer:
The answer is B mitochondria
Explanation:
Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria.
Select ALL roles that oceans can have.
Group of answer choices
land salination
heat absorption
heat distribution
land buoyancy
For all the people who dont understand: YOU CAN PICK ANYTHING THATS TRUE AND DONT ADD ANY STUPID 5TH OPTION OK?
Answer:
land salinization
Explanation:
land salinization- forms by water, soil, and salt
heat absorption - heat
heat distribution- heat
land buoyancy- venous return
Hope this helps... sooooo sorry if I got it wrong, I'm only trying to help. Good luck :)
The law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred
Answer:yesThe law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred
Explanation:
Fossils provide a record of animals that are ___ or no longer living
A. Petrified
B. Extinct
C. Modern
Answer:
B. Extinct
Explanation:
Exctinct means no longer exists.
In this case, fossils provide the proof that exctinct animals species used to exist but no longer do. For example, dinosaurs are the prime example of this.
What is the structure in the blood vessels where gases are exchanged? (for a Biology test)
Answer:
The capillaries
Explanation:
This is where the exchange of gases , nutrients and waste occurs between the tissues and the blood due to the small pores and spaces are between the cells
How are humans immune to infectious diseases after they have already contracted the disease previously? and How do vaccinations work to provide immunity?
Answer:
Explanation:
Immunity to a disease is achieved through the presence of antibodies to that disease in a person's system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific. Viruses make us sick by killing cells or disrupting cell function. Our bodies often respond with fever (heat inactivates many viruses), the secretion of a chemical called interferon (which blocks viruses from reproducing), or by marshaling the immune system's antibodies and other cells to target the invader. A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
Who knows how to do this pls answer it 100% smart pls tell me the correct answer smart people
Answer:her arm is puffy, red, and swollen
Explanation:
why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?
Answer:
Deletion mutations can affect the entire base sequence.
Explanation:
Answer:
Deletion mutation may cause a shift of base sequence, causing the reading frames for base sequence to change during translation. This may affect the type of amino acid it the original base sequence codes for, resulting in a change in amino acid sequence in the polypeptide translated. Therefore, affecting the whole protein itself. There may be wrong amino acids that prevents vital bonds like disulfide bridges to form, resulting in a huge change in 3 dimensional conformation of the protein. A point mutation may result in a gene sequence being edited. However, only the target sequence is being mutated. The rest of the gene sequences are left untouched. Therefore, the impact is localised. This ensures that even though a few wrong amino acids may be in the polyleptide, most of the bonds that are crucial for the correct 3 dimensional conformation is still present, therefore, lesser defects will be resulted due to point mutation as compared to deletion mutation.
Explanation:
Hope this helps, Have a Great Day!!
What is the function of a protein?
Explanation:
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place, and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.
Hope this helps!! :)
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What is the chemical equation for the light-independent reactions (Calvin Cycle) of photosynthesis?
Hello! Your answer is shown below :
The chemical formula for the reaction is + + = ( ) + , but there are many individual steps leading to the overall result. This photosynthesis process can be separated into two parts: the light-dependent reactions and the dark reactions.
Hope this helps! And have a great day! :)
True or false Angiosperms are flowering plants will mark brainlest
Answer:
True, angiosperms are plants that have flowers and produce seeds within a fruiting body or carpel. Example: The humble tomato plant starts off with bright yellow or orange flowers that (after pollination) will swell into a plump, red fruit, chock-full of seeds waiting to be planted.
