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3 years ago

Based on the model of cellular transport, the hydrolysis of ATP and ADP provide a mechanism for

Biology

2 answers:

Ronch [10]3 years ago

8 0

Answer:

Cellular transport is the movement of ions or molecules across the membrane of the cell through either active or passive process.

Explanation:

During active transport, ATP (Adenosine triphosphate) is used. In passive transport, ATP is not used. In active cellular transport, the ions move across the membrane against the concentration gradient.

For ATP to be used, it has to get hydrolyzed thereby forming ADP and inorganic phosphate. On the other hand, ADP captures the energy through the oxidation process taking place in the cell.

Maurinko [17]3 years ago

4 0

Answer:

Explanation:

They move against the gradient : this is coming directly from USAtestprep

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Answer:

Unhealthy high carbohydrate foods include pancakes, soft pretzels, bread products, ready to eat cereals, milkshakes, ice-cream, cereal bars, cake, pies, muffins, sweetened canned fruits, sugary drinks, fruit juices, corn chips, potato chips, and candies. Healthy high carbohydrate foods includes whole grains, beans, vegetables, fresh fruits, nuts, and seeds. The daily value (%DV) for carbohydrates is 300 grams.

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3 years ago

Which of the following scenarios is representative of mutualism?

ycow [4]

The correct answer is B. Bees pollinating flowers.

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garri49 [273]

Answer:

Tributary-river-river system

i think this is the answer

Explanation:

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Why do you think toxicology is an important area of study in veterinary science?

notka56 [123]

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Describe the process of light-independent

xxTIMURxx [149]

Explanation:

Light energy is absorbed and transferred to the reaction center.
A water molecule is split.
Electrons are transferred from photosystem II to photosystem I.
ATP is synthesized from ADP and inorganic phosphate.

Output: ATP, NADPH, O2

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

The chloroplast is a membrane bound organelle found in plants. It contains several invaginations of a plasma membrane called the thylakoid membrane. This contains chlorophyll pigments, in stacks called granum, while the internal spaces of the organelle are called the lumen. Liquid surrounds the granum, forming the stroma.

During the light reaction:

Light is absorbed by pigments in phosystem II (PSII). This energy is transferred among pigments til it gets to the reaction center, and is transferred to P680; this promotes an electron to a higher energy level where it then goes to an acceptor molecule.
Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II. Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent.
the electron moves down an electron transport chain (to PS I)where it experiences continuous energy loss. This energy fuels the pumping of H+ from the stroma to thykaloid, leading to the formation of a gradient. The H+ move along their gradient and cross through ATP synthase, into the the stroma.
ATP synthase converts ADP and Pi to the energy storage molecule ATP.
The electron gets to photosystem I where it goes to pigments at P700. It absorbs light energy, the electron is promoted to a higher energy level, and passed to an electron acceptor. This leaves a space for another electron which is then replaced by one from photosystem II.
in the ETC, the molecule NADP is reduced to NADPH by providing H+ ions. NADP and NADPH are integral to the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.