Exam 2 Practice: BIO 160

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The movement of electrons through the ETC of mitochondria leads to

Accumulation of protons inside of the cristae and formation of water

Which of the following does NOT happen in noncyclic photosynthetic electron transport

CO2 reacts with RubiBP

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones?

Catabolism (catabolic pathways)

Fermentation

Does not require O2

You have discovered an enzyme that can catalyze two different chemical reactions. Which of the following is most likely to be correct?

Either the enzyme has two distinct active sites or the reactants involved in the two are very similar in size and shape.

Which of the following statements is a logical consequence of the second law of thermodynamics?

Every chemical reaction must increase the total entropy of the universe.

Which statement about pyruvate is NOT true?

It contains 6 carbon atoms

What is true about pyruvate?

It is the end product of glycolysis, it becomes reduced during fermentation, and it is a precursor of acetyl co-A

When white light strikes a green pigment, green light is

Scattered or transmitted

Glycolysis

Takes place in the mitochondria

Which of the following is TRUE when comparing an uncatalyzed reaction to the same reaction with a catalyst?

The catalyzed reaction will have the same ∆G.

Which statement about the Calvin cycle is NOT true

The concentration of 3Pg rises if the light is switched off.

The role of oxygen gas in our cells is to:

accept electrons from the respiratory chain


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