During vigorous exercise, pyruvate produced by glycolysis is converted to acetat

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Home ‣ Biochemistry ‣ Carbohydrate Comments

Question
During vigorous exercise, pyruvate produced by glycolysis is converted to
Options
A. acetate
B. lactate
C. monosodium phosphate
D. pyruvic acid

Correct Answer

lactate

Carbohydrate problems

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1. A catabolic intermediate which stimulates phosphofructokinase would stimulate
Options
A. gluconeogenesis
B. glycolysis
C. glycogen synthesis
D. none of these

Discuss

Correct Answer: glycolysis

2. Cellulose fibers resemble with the protein structure in the form of
Options
A. ?-sheets
B. ?-helices
C. ?-turns
D. None of these

Discuss

Correct Answer: ?-sheets

3. Storage polysaccharide made by animals is
Options
A. amylopectin
B. glycogen
C. cellulose
D. collagen

Discuss

Correct Answer: glycogen

4. What is present in the stomach to prevent self-digestion?
Options
A. Mucus
B. acid
C. Enzymes
D. hormones

Discuss

Correct Answer: Mucus

5. In lysozyme catalysis, which of the following does not contribute?
Options
A. The abnormally high pK_a of Glu35
B. The strained conformation of the D sugar
C. Formation of a covalent intermediate at Asp52
D. Formation of a covalent intermediate at Ser195

Discuss

Correct Answer: Formation of a covalent intermediate at Ser195

6. Which of the following can act as precursors for gluconeogenesis?
Options
A. Lactate
B. Glycerol
C. Alanine
D. All of these

Discuss

Correct Answer: All of these

7. The cells dependent solely on glucose as an energy source are
Options
A. muscle cells
B. brain cells
C. kidney cells
D. liver cells

Discuss

Correct Answer: brain cells

8. Hexokinase activity in glycolysis is inhibited by
Options
A. glucose 6- phosphate
B. fructose 6-phosphate
C. fructose 1,6 biphosphate
D. phosphofructokinase

Discuss

Correct Answer: glucose 6- phosphate

9. Humans are unable to digest
Options
A. starch
B. complex carbohydrates
C. denatured proteins
D. cellulose

Discuss

Correct Answer: cellulose

10. Saliva contains all of the following except
Options
A. hormones
B. amylase
C. bacteria-killing enzymes
D. antibodies

Discuss

Correct Answer: hormones

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During vigorous exercise, pyruvate produced by glycolysis is converted to

Carbohydrate problems

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