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Carbohydrate Quiz Test

Sources of carbohydrate include whole grains, fruit, and vegetables. Carbohydrates, also known as saccharides or carbs, are sugars or starches. They are a major food source and a key form of energy for most organisms. They consist of carbon, hydrogen, and oxygen atoms. good luck....... Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates — one of the basic food groups — are important to a healthy diet.

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Quiz Questions And Answers

Fructose is metabolized by

fructose 1-phosphate pathway
fructose 6-phosphate pathway
both a and b

A common way that cells capture the energy released during the breakdown of large molecules is to add electrons to smaller, specialized molecules that can accept them. This process

biosynthesis
metabolism
reduction

Humans are unable to digest

starch
complex carbohydrates
cellulose

How many ATP equivalents per mole of glucose input are required for gluconeogenesis?

2
6
3

Which of the following compounds is responsible for coordinated regulation of glucose and glycogen metabolism?

Fructose 2,6 bisphosphate
Acetyl-CoA
NAD+

Gluconeogenesis requires a higher amount of ATP equivalents as compared to that produced by glycolysis because

gluconeogenesis releases energy as heat
glycolysis occurs in the mitochondria while gluconeogenesis occurs in the cytosol
glycolysis releases energy as heat

Which of the following is carried out when cAMP functions as a second messenger?

Acts second in importance to AMP
Activates all cytosolic protein kinases
Activates the cAMP-dependent protein kinase

The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.

aspirin
DNA
ATP

The cells dependent solely on glucose as an energy source are

muscle cells
brain cells
kidney cells

The main site for gluconeogenesis is

liver
kidney
heart

Which of the following statements about the energy needs of cells is false?

Without a continuous input of energy, cell disorder will increase
The laws of thermodynamics force cells to acquire energy
The most usable energy for cells comes from the rapid combustion of glucose

In lysozyme catalysis, which of the following does not contribute?

The abnormally high pKa of Glu35
The strained conformation of the D sugar
Formation of a covalent intermediate at Ser195

Cellulose fibers resemble with the protein structure in the form of

β-sheets
α-helices
β-turns

During vigorous exercise, pyruvate produced by glycolysis is converted to

acetate
lactate
pyruvic acid

Glucagon and epinephrine

inhibits gluconeogenesis and stimulates glycolysis
stimulates gluconeogenesis and glycolysis
stimulates gluconeogenesis and inhibits glycolysis
ANSWERS

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