AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What stage of cellular respiration does glycolysis occur in?
A
Stage 1
B
Stage 2
C
Stage 3
D
Stage 4
Explanation: 

Detailed explanation-1: -The first stage of cellular respiration, called glycolysis, takes place in the cytoplasm. In this step, enzymes split a molecule of glucose into two molecules of pyruvate, which releases energy that is transferred to ATP.

Detailed explanation-2: -Glycolysis, the first step of cellular respiration, occurs in the cytoplasm of your cells. During this process, a glucose molecule is broken down into two molecules of pyruvate (pyruvic acid).

Detailed explanation-3: -The first stage of cellular respiration is glycolysis. It does not require oxygen, and it does not take place in the mitochondrion. Enzymes split a molecule of glucose into two molecules of pyruvate. This releases energy, which is transferred to ATP.

Detailed explanation-4: -Step 1: Glucose is phosphorylated by the enzyme hexokinase to form glucose 6-phosphate. Glucose gains energy by being phosphorylated at the expense of one ATP. Step 2: Glucose 6-phosphate is converted into its isomer, fructose 6-phosphate, by an isomerase enzyme.

Detailed explanation-5: -Glycolysis. The first stage of aerobic respiration is glycolysis, which takes place in the cytoplasm. Glycolysis converts glucose, a six-carbon molecule, into two smaller three-carbon molecules called pyruvate.

There is 1 question to complete.