POB Final Newest 2026-2027 Actual Exam With

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POB Final Newest 2026-2027 Actual Exam With Complete Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+

To absorb glucose into a muscle cell, GLUT4 proteins are placed in the cell membrane. These proteins bind to glucose molecules and change shape allowing them into the cell, but no energy is used. This describes Facilitated diffusion with a carrier protein.

More ATP is produced directly in the metabolic pathways of respiration than the electron transport chain.False

Where does the citric acid cycle occur?In the matrix of mitochondria.

Consider a metabolic pathway represented by the above image. If the letters represent reactants and products, how many enzymes would be required to run this pathway?

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The light reactions could be viewed as analogous to a hydro-electric dam. In that case, the water stored in the reservoir above the dam would be analogous to...Hydrogen ions (protons).

Choose the following statements that are true about the diagram concerning respiration above?

• Oxygen is gaining electrons at F to turn into a water molecule.
• Hydrogen ions (protons) are diffusing across the membrane at G.

Of the following conditions, which is absolutely necessary for diffusion to take place?A concentration difference.

Which of the following statements is not true concerning enzymatic activity?

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Enzymes work at the same rate no matter what the pH.

The metabolic pathways in respiration break down, catabolize, organic molecules To take high energy electrons from the organic molecules in small units and send those electrons to the electron transport chain to make most of the ATP in cells.

The part of the cytoskeleton that causes the contraction of muscle cells is Microfilaments made of actin and their associated motor proteins.

If an enzymatic reaction was controlled by feedback inhibition, we would expect it to stop As soon as a critical level of end product builds up.

The thylakoid memebrane of the chloroplast is highly folded For faster rates of photosynthesis due to increased surface area.

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The pigment that absorbs light during photosynthesis is Chlorophyll.

What are the two sets of reactions for photosynthesis?Light reactions, Calvin cycle reactions

This is a multiple answer question. Choose all that are correct. Choosing incorrect questions will subtract from the grade on this question.However, you cannot receive an negative grade on the question.Choose which are true.

• Both photosynthesis and respiration involve building up a hydrogen

ion gradient.

• Both photosynthesis and respiration have metabolic pathways.

NADH and FADH2 bring electrons to the electron transport chain during cellular respiration.True.

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