Semester 2 Biology Exam - Test prep - Chapter 9

The process that releases energy from food in the presence of oxygen is

• Synthesis

• Cellular respiration

• ATP synthase

• Photosynthesis

During the Krebs cycle

• Hydrogen ions and oxygen form water.

• the cell releases a small amount of energy through fermentation.

• Each glucose molecule is broken down into 2 molecules of pyruvic acid.

• Pyruvic acid is broken down into carbon dioxide in a series of reactions.

True or False. Organisms get the energy they need from food.

• True

• False

The electron transport chain uses high energy electrons from the Krebs cycle to

• Produce glucose

• Move H+ ions across the inner mitochondrial membrane.

• Convert Acetyl-CoA to citric acid.

• convert glucose to pyruvic acid.

For short, quick bursts of energy, the body uses ATP already in muscles as well as ATP made by

• alcoholic fermentation.

• lactic acid fermentation.

• aerobics.

• cellular respiration.

In eukaryotic cells, MOST of cellular respiration takes place in the

• nuclei

• cytoplasm

• mitochondria

• cell walls

Which substance is broken down during the process of glycolysis?

• Carbon

• NAD+

• Glucose

• Pyruvic Acid

The process carried out by yeast that causes bread dough to rise is

• alcoholic fermentation.

• lactic acid fermentation.

• cellular respiration.

• yeast mitosis.

During cellular respiration, which of the following are released as byproducts?

True or False. Photosynthesis removes methane from the atmosphere, and cellular respiration puts it back.

• True.

• False.