Homework 6 - Mastering Biology

Which of these is ATP?

3 phosphate, ribose, adenine

For someone who is 5'6" tall and weighs 188 pounds, which amount of weight loss would move the person into the "normal weight" category?

41 lbs

use your knowledge and the bmi table

Because lean muscle is more dense than fat tissue, a fit athlete might be classified in the "overweight" category. The BMI categories do not take age or sex into consideration.

cellular respiration equation

C6H12O6+6O2---> 6CO2+6H2O+ATP

Which of these is NOT a product of the citric acid cycle (also called the Krebs cycle)?

acetyl CoA

an enzyme is

an organic catalyst

In glycolysis, what starts the process of glucose breakdown?

atp

structure A is

atp synthase

Stages of Cellular Respiration

glycolysis, citric acid cycle, electron transport chain

What type of reaction breaks the bonds that join the phosphate groups in an ATP molecule?

hydrolysis

Most enzymes are

proteins

enzymes work by

reducing activation energy

What name is given to the reactants in an enzymatically catalyzed reaction?

substrate

In the citric acid cycle (also called the Krebs cycle), ATP molecules are produced by _____.

substrate-level phosphorylation

in glycolysis ATP molecules are produced by

substrate-level phosphorylation

Which of these enters the citric acid cycle (also called the Krebs cycle)?

acetyl CoA

How food fuels cellular respiration

1.eating food provides fuel and building blocks for your body 2.after food is broken down the digestive system, it is transported to cells via the circulatory system 3.fuel molecules are broken down further in glycolysis and the citric acid cycle 4.ATP is produced with the help of the ETC

For each glucose that enters glycolysis, _____ NADH enter the electron transport chain

10

which of these is not a product of glycolysis

FADH2

During electron transport, energy from _____ is used to pump hydrogen ions into the _____.

NADH and FADH2 ... intermembrane space

Which macromolecules get broken down in cellular respiration and release the energy stored in their chemical bonds?

carbs, lipids, proteins

what is the correct label for A

energy of activation

As a result of its involvement in a reaction, an enzyme _____.

is unchanged

The proximate (immediate) source of energy for oxidative phosphorylation is _____.

kinetic energy that is released as hydrogen ions diffuse down their concentration gradient

In muscle cells, fermentation produces _____.

lactate and NAD+

in cellular respiration, most atp molecules are produced by

oxidative phosphorylation

The final electron acceptor of cellular respiration is _____.

oxygen

the gas exchange during cellular respiration involves ___ moving into cells and ___ moving out

oxygen; carbon dioxide

How many NADH are produced by glycolysis?

two

In glycolysis there is a net gain of _____ ATP.

two