Answer:
1. Enzymes are proteins working as catalysts that speed up processes by reducing the activation energy. They speed up the processes in the cells such that they may occur in fractions of seconds. In the absence of catalysts most biological processes would not occur even during time spans of years.
2. The induced fit model asserts that substrate attaches to an active site and both alter shape slightly, generating an optimum match for catalysis. When an enzyme attaches to its substrate, it creates an enzyme-substrate complex. At the end of the process, the enzyme will always revert to its original condition.
3. The Glycolysis and the Krebs cycle, the processes that are involved in this route are catalyzed by enzymes.
The enzymes of Glycolysis are found outside the mitochondrial surface while the enzymes of Krebs cycle are placed in the matrix of mitochondria except succinate dehydrogenase which is present in the inner membrane of mitochondria.
4. Most enzymes are proteins and consequently their function is unique to their structure. Enzymes function as a catalyst to boost the pace of practically all the chemical events that take place in a biological system.
5. Genetic control, compartmentalization, adjustment of substrate concentration, degradation, changing of environmental parameters like pH, and processing of zymogens are all methods that may be utilized to regulate enzyme activity (induction and repression).
Explanation:
Hope it helps:)
how many times must the calvin cycle turn to produce 10 glucose molecules?
True or false The center of gravity and the center of mass Rae always the same in an object
Can someone please help me asap!! Thank uu!!
in dna replication, the new strand of dna that is synthesized discontinuously.
Answer:
Okazaki fragments
Explanation:
What characteristics of the lower mantle causes it to contain more liquid than sections in the upper mantle?
A. the type of rock from which its made
B. the intense heat from the core
C. the lower pressure
D. the gaps filled in with hardened magma
The type of rock from which its made is the characteristics of the lower mantle causes it to contain more liquid than sections in the upper mantle.
What do you mean by mantle?A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body.
The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume. As Earth began to take shape about 4.5 billion years ago, iron and nickel quickly separated from other rocks and minerals to form the core of the new planet.
The mantle is made up of a semi-molten rock called magma. The mantle can be split into two different sections which consist of the lower mantle, which is made from a more solid rock.
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If you start with 60 chromosomes and end with 60 chromosomes
If you start with 60 and end with 60, then no change has occurred. Mitosis is part of cell replication, so if we end with the same number as we started with, then no form of mitosis has occurred.
I hope this helps! :)
If we begin with 60 chromosomes and end with 60 chromsomes, then there has been no change. As mitosis is a component of cell replication, no mitosis has taken place if we reach the same number of cells as when we began.
What is Mitosis?Chromosomes that have been duplicated are splitting into two new nuclei during the cell cycle phase known as mitosis. Mitosis, the process of cell division, creates genetically identical cells with a constant number of chromosomes. Hence, equational division is another name for mitosis.
Mitosis is a process used to create more cells that share the same genetic makeup as the parent cell. It is essential to the expansion and development of human bodies as well as for the embryonic development of living things. Mitosis generates new cells and replaces injured, destroyed, or ageing ones.
Thus, if we begin with 60 chromosomes and end with 60 chromsomes, then there has been no change. As mitosis is a component of cell replication, no mitosis has taken place if we reach the same number of cells as when we began.
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Which of the following would increase species biodiversity in Florida?
A.
Placing no limits on alligator hunting in lakes
B.
Legalized hunting for monkeys around the St. John’s River
C.
Protecting black bears in state or national forests
D.
Clearing land for a new entertainment theme park
Answer:
C
Explanation:
Biodiversity measures the variety of organisms in an ecosystem. Allowing hunters to hunt alligators depletes the alligator population which decreases biodiversity. Legalizing monkey hunting depletes the population which decreases bio diversity. Deforestization rids animals of their habitats which massively decreases biodiversity due to the plants, trees, and animals destroyed in the process. That and the fact that there will be less sites for nesting and homes for the animals which will decrease biodiversity even more over time. It's all connected.
Protecting a species conserves the population and ensures the safety of the animal especially from human interference. This allows the animal (specifically the black bear) to survive in its habitat unharmed and allows it to play its role in the ecosystem and contribute to biodiversity.
10.
Which statement correctly describes carbon fixation?
a. the conversion of CO2 to an organic compound
b. the use of RuBisCO to form 3-PGA
c. the production of carbohydrate molecules from G3P
d. the formation of RuBP from G3P molecules
e. the use of ATP and NADPH to reduce CO2
Answer:
answer A the conversion of CO2 to an organic compound.
Explanation:
Carbon fixation is first step of Calvin cycle. The carbon fixation is process during which inorganic CO2 gas into organic compounds.
The carbon fixation does not involve usage of RuBisCO to form 3-PGA. This step will take place during regeneration process of Calvin cycle.
Carbon fixation refers to the conversion of carbon dioxide to an organic compound.
What is carbon fixation?It is the process by which autotrophs fix atmospheric carbon to produce organic compounds. It is the assimilation of inorganic carbon and its transformation to organic compounds. This can be used as the storage of energy and for the production of biomolecules.
All the autotrophs fix atmospheric carbon dioxide by the phenomenon of chemosynthesis or photosynthesis. The main process of carbon fixation is the photosynthesis. The process of carbon fixation takes place in the light-independent reaction or dark reaction of the process of photosynthesis.
Thus, the correct statement is option a.
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Which macromolecule stores genetic information for an organism?
A. Carbohydrate
B. lipid
C. nucleic acid
D. protein
Answer:
Nucleic Acid
Explanation:
The monomer of nucleic acids is an nucleotide. When several nucleotide is joined together they form DNA or RNA, which store the genetic material of an organism.
Prior to the formation of a land bridge about 3 MYA that allowed placental mammals to invade, marsupials were diverse and abundant on what other continent besides Australia
Prior to the formation of a land bridge about 3 MYA, marsupials were diverse and abundant in SOUTH AMERICA. The western half of Gondwana separated from the eastern half million years ago.
Gondwana was a super landmass containing all continents that began to break up during the Jurassic.
The western half of Gondwana (i.e., Africa and South America) separated from the eastern half (i.e., India, Australia, and Antarctica) million years ago.
This separation led to the divergence of many taxonomic groups, including Australian marsupials and South American marsupials.
Some South American marsupials include, among others, Andean caenolestid, Chacoan gracile opossum, long-nosed caenolestid etc.
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which term names what can regulate gene expression in eukaryotes?
Answer:
the correct answer is transcription factors
Answer:
transcription factors is the answer
Explanation:
i know this is a bit old but just for people coming later, the other answer is wrong
Use the drop-down menus to complete the statements.
____occurs when an entire species cannot adapt to a long-term environmental change.
A population that cannot find food after a flood may
____to survive.
Over many generations, the buildup of favorable adaptations in a population may lead to___
Answer:
Extinction occurs when an entire species cannot adapt to a long-term environmental change.
A population that cannot find food after a flood may migrate to survive.
Over many generations, the buildup of favorable adaptations in a population may lead to speciation
Explanation:
I did this assignment on edge!! 100% correct :)
Extinction occurs when an entire species cannot adapt to a long-term environmental change. A population that cannot find food after a flood may migrate to survive.
What is extinction ?Extinction is the eventual devastation of a certain class of organism when they become unable to adapt to the environmental changes. Extinction can occurs through natural calamities such as flood, earthquake etc. or by human activities which destroys the habitats of the organisms.
A population that cannot find food after a flood may migrate to survive. They may travel over distances to gather food or water or to shelter somewhere.
Over many generations, the buildup of favorable adaptations in a population may lead to speciation. It is the process by which a new species is originated. They find better adaptation to reproduce and make their population common.
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explain how oil is formed
Answer:
The formation of oil begins in warm, shallow oceans that were present on the Earth millions of years ago. ... It is this sediment on the ocean floor that then forms oil over many years. The energy in oil initially comes from the Sun, and is energy from sunlight that is trapped in chemical form by dead plankton.
Explanation:
If you like my answer than please mark me brainliest thanks
Answer: oil is formed by bones they decompose after hundreds of years of time
Explanation: btw it’s Alex
What is the difference between cowpea and beans
Answer:
a pea has a hollowed our stem and a bean has a solid stem
A human skin cell contains 46 chromosomes (23 paternally inherited and 23 maternally inherited). Before mitosis begins, this cell must replicate its genetic material. What are the products of this replication
Answer:
92 sister chromatids, in 46 pairs that are connected by a centromere
Explanation:
A human skin cell contains 46 chromosomes (23 paternally inherited and 23 maternally inherited). Before mitosis, the product of the replication is 92.
What is mitosis?Cell division occurs during mitosis. All eukaryotic cells go through the process. There are four stages to the process. The cell divides during the procedure. A daughter cell that is identical to the parent cell is created.
A total of 46 chromosomes make up the 23 pairs of homologous chromosomes that make up human somatic cells. Since there is no genetic recombination during mitosis, unlike the meiotic cell division, which results in the production of haploid gametes, the daughter cells formed during mitosis are identical.
So, before mitosis, 46 + 46 = 92 chromosomes.
Therefore, the product of the replication is 92.
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If a postsynaptic neuron is stimulated to threshold by spatial summation this implies that ________.
Answer:
Efectivamente, una neurona puede ser a la vez presináptica y postsináptica y de hecho, esto es lo que sucede habitualmente en el Sistema Nervioso, formado por una intrincada red de neuronas que establecen multitud de contactos sinápticos entre sí y que a veces se consideran presinápticas, y otras, postsinápticas. Estos términos hacen referencia a la neurona que en un determinado momento envía la información (presináptica) y a la neuronas que la recibe o receptora (postsináptica). Si en una sinapsis química la neurona presináptica libera un neurotransmisor que se une a los receptores de la membrana postsináptica, se producirán cambios eléctricos en el potencial de membrana de la neurona receptora. Si la suma de todos estos cambios eléctricos (sumación espacial y temporal) supera el umbral de excitación de esa neurona postsináptica, se desencadenará un potencial de acción en su axón que se propagará a lo largo de él hasta llegar a los botones terminales, donde provocará de nuevo la liberación de un neurotransmisor. Así, la neurona postsináptica se convierte en presináptica enviando información a otras neuronas, que serán en este caso, neuronas postsinápticas.
Explanation:
The postsynaptic membrane depolarizes when Na+ reaches the postsynaptic cell. This depolarization induces an excitatory postsynaptic potential, which increases the likelihood of an action potential being triggered by the postsynaptic neuron (EPSP).The membrane potential can so surpass the barrier required to generate an action potential.
What postsynaptic neuron is stimulated to threshold?One postsynaptic potential's amplitude at the instant the next one starts will algebraically sum with it to create a bigger potential than the sum of the individual potentials. As a result, the membrane potential can cross the threshold necessary to produce an action potential.
Therefore, If a postsynaptic neuron is stimulated to threshold by spatial summation, this implies that (the postsynaptic cell has many synapses with many presynaptic neurons).
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What is the overall net gain of atp in cellular respiration per one molecule of glucose?.
Answer:
30+ ATP
Explanation:
About 30-38 molecules of ATP can be made from one molecule of glucose in cellular respiration through a number of processes such as Glycolysis, Transformation of Pyruvate, Citric Acid Cycle, and Oxidative Phosphorylation which includes the electron transport chain and chemiosmosis, all of which are ordered respectively.
Suppose that there is a mutation in a suppose that there is a mutation in a single-celled organism where the Krebs cycle (TCA/Citric Acid Cycle) doesn't happen. What would be the consequences for that organism? How would their metabolism be similar to ours? How would it be different?
In this case, the organism would not be able to produce ATP in aerobic conditions. The Krebs cycle is fundamental in humans.
Cellular respiration consists of a series of metabolic reactions by which aerobic cells can produce ATP (the energy coin of the cell) by using the energy stored in foods and oxygen.
Cellular respiration has three types of sequential reactions: glycolysis, the Krebs cycle and oxidative phosphorylation.
During the Krebs cycle, the energy from foods (e.g., carbohydrates) is released through the oxidation of acetyl-CoA.
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What is the main function of the cell membrane in a plant cell?
Answer:
Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in.
Answer:
The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.Explanation:
because it is
Why is it unlikely for a cell that spends a large amount of time in Go phase to be a tumor cell?
Answer: It is because it isn't producing more cells therefor it can't grow a tumor. The G0 phase is a resting phase
Explanation:
______________ are two factors that can influence enzyme activity
A. protein and carbohydrate
B. atoms and molecules
C. Temperature and pH
D. polar and non-polar substances
The parasympathetic system is a branch of which nervous system?
Answer:
Autonomic nervous system
Explanation:
Structures specific in plant cells but not in animal cells include
(a) a large central vacuole.
(b) the mitochondria.
(c) the cell membrane.
(d) the cytoplasts.
Vacuoles are storage sac for solid and liquid content. In the plant cells, there is a large central vacuole. Vacuoles are basically absent in animal cells, if present, they are small and few.
Hope it helps.
Do comment if you have any query.
The ans is " a large central vacuole "
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The process that replicates the DNA, and then divides a Prokaryotic cell into two Daughter cells is called _______.
Answer:
Binary fission
Explanation:
The cell division process of prokaryotes, called binary fission, is a less complicated and much quicker process than cell division in eukaryotes. Because of the speed of bacterial cell division, populations of bacteria can grow very rapidly.
Select the correct answer from each drop-down menu.
The government of the United Kingdom is a
Wales, and
The United Kingdom consists of four countries: England, Scotland,
Reset
Next
in humans, which tissues are the main storage locations for glycogen? select all.
Answer:
Cuando el cuerpo no necesita usar la glucosa para generar energía, la almacena en el hígado y los músculos. Esta forma almacenada de glucosa se compone de varias moléculas conectadas entre sí y se llama “glucógeno”.
Explanation:
the ________ is vital to sleep because it secretes growth hormones.
Answer:
The pituitary gland
The pituitary gland is vital to sleep because it secretes growth hormones. Sleep is essential for growth because it triggers the release of several hormones.
How pituitary gland secrets the growth hormones?Our brain's pituitary gland is a structure that creates specialized hormones, including growth hormone (also referred to as human growth hormone or HGH). Growth hormone (GH) is released in pulses during the course of a 24-hour cycle.
Early sleep, in temporal conjunction with the beginning of the first period of deep slow-wave sleep, is when normal adult participants have the most consistent and frequently largest GH pulse (SWS).
Therefore, sleep, stress, exercise, and low blood glucose levels all raise growth hormone levels, released by the pituitary gland.
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Explain the flow of blood from a leg muscle to the heart and lungs and back to the muscle again listing each organ the blood travels through and what happens at eavh place
Deoxygenated blood from the leg muscle returns to the heart, moves to the lungs to be oxygenated, goes back to the heart, and flows through the body again.
The circulatory system is a complex system in the body whose function is to keep the flow of oxygenated blood throughout the body.
This system is composed of multiple steps that create a cycle and usually involve the following organs:
The heart.The lungs.Blood vessels.VeinsArteriesHere are the steps if we start with deoxygenated blood in the muscles.
The deoxygenated blood returns to the heart through the veins. This blood has no oxygen because this has been used.An important vein known as the vena cava pumps the blood into the right atrium of the heart.The blood then floods into the right ventricle.Later, as the heart beats the blood moves from the heart to the pulmonary artery.In the lungs, the blood is oxygenated and then it returns to the heart.The blood goes to the left atrium and moves to the left ventricle.The blood is pumped from the heart to the rest of the body including muscles.Learn more about blood in: https://brainly.com/question/11568067
Radioisotopes and ionizing radiation I. allow us to develop high resolution images of some tissues. II. were hypothesized for medical use over a century ago. III. can induce apoptosis in cancerous tissues. IV. are always selective for cancerous tissues.
Given our understanding of Radioisotopes and ionizing radiation, we can confirm that they allow us to develop high-resolution images of some tissues, as well as induce apoptosis in cancerous tissues.
As we know, Ionizing radiation can be dangerous to humans and when used, must be used will all the proper safety procedures in place. This kind of radiation has enough power to cause mutations on a genetic level. However, this radiation also allows us to use X-ray imaging to obtain high-resolution images of bone tissue.
As stated before, ionizing radiation and radioisotopes are powerful enough to cause mutations on a genetic level. At times, these mutations can be so severe that they trigger apoptosis in cells. Scientists have been using this technology in order to induce apoptosis in cancer cells on command, with mixed results.
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- 1. what inputs do plants need to carry out photosynthesis, and how might you provide these on another planet?
(20pts)2. What outputs do plants produce from photosynthesis and how do these benefit humans?(20 points) 3. How
do plants transfer energy from light to sugar molecules?(10points) 4. What questions would you ask about the planet
to refine your list of necessary materials?(30points) Include pics of plants or pics of planet(30point)
Answer:
1) carbon dioxide, water, and sunlight.
2) glucose and Oxygen, and humans got benefited by consuming (breathing oxygen) that are produced by plants while photosynthesis.
3)During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
