chapter 6 connect

A hydrogen atom consists of

1 proton and 1 electron

Consider the biochemical pathway below, where A, B, and C are substrates and products and E1 and E2 are the enzymes that catalyze the reactions. If Enzyme 1 (E1) is inactive, which of the following compounds will accumulate?

a only

NAD+ is made from niacin, a B vitamin. Based on the animation, if someone is deficient in niacin, which of the following symptoms might they experience?

a reduction of energy

energetic molecules such as NADH and ATP are often reactants of---- reactions

anabolic

Energetic molecules such as NADH and ATP are often products of -------reaction

catabolic

What happens when the coenzyme NAD+ gains an H atom?

it also gains an electron causing it to be reduced.

based on the reaction in the animation, what can you say about the change in free energy of the cleavage of sucrose into glucose and fructose

it is negative and the reaction is exergonic

how often can a sucrase molecule be used to hydrolyze sucrose?

many times

Consider the biochemical pathway below, where A, B, and C are substrates and products and E1 and E2 are the enzymes that catalyze the reactions. Enzyme 1 (E1) can utilize

only A as substrate

Cells obtain energy by ________ food molecules such as glucose.

oxidizing

In the reaction Pyruvate + NADH -> lactate+NAD+, pyruvated is being -----, while NADH is being ------

reduced, oxidizied

what happens to sucrase when it binds to sucrose.

sucrase goes through a conformational change.

A mutation occurred in the gene that encodes the enzyme sucrase, resulting in a single amino acid substitution in the active site of the enzyme; a polar amino acid changed to a nonpolar amino acid. What is probably the result of this mutation.

sucrase will not be ale to bind in the active site.

Based on the animation, which of the following observations is true?

the product from one reaction served as the substrate for the next reaction.

sucrase uses==== to cleave sucrose into two monosaccharides.

water