Quiz 3.1

Cellulose........ is a disaccharide is not broken down in the human body due to lack of the proper digestive enzymes is not broken down in the human body due to the lack of storage capabilities is all of the above

is not broken down in the human body due to lack of the proper digestive enzymes

Which one of the following statements about glycogen is correct? Glycogen is found in the muscle and liver cells of humans. Glycogen is the only storage form of glucose in humans. Glycogen is formed exclusively by gluconeogenesis. Glycogen is less branched than amylopectin. All the above A and B B, C, and D C and D

A and B

Plants store glucose in which form(s)? Amylose Glycogen Amylopectin Maltose All of the above A and C B and D A, C, and D

A and C

The glycemic index of a food is a number that represents how fast that particular food raises blood glucose levels. The higher the number, the faster that food will increase blood glucose levels. Based on the graph below and if your choices are amylose, amylopectin, and maltose, which line represents amylopectin? Food 1 Food 2 Food 3

Food 3 (LOWEST)

Which two monosaccharides make up sucrose? Fructose and galactose Glucose and fructose Glucose and galactose Glucose and glucose

Glucose and fructose

Which two monosaccharides make up lactose? Fructose and galactose Glucose and fructose Glucose and galactose Glucose and glucose

Glucose and galactose

What is the difference between glycogen and starch? One is a polysaccharide and one is not Glycogen is from animals, starch is from plants Starch provides bulk and can't be broken down by the human body Starch is an energy storage molecule, glycogen is an immediate energy usage molecule

Glycogen is from animals, starch is from plants

Identify the mismatched pair. Monosaccharide = ribose Maltose = glucose + glucose Lactose = glucose + fructose Polysaccharide = glycogen

Lactose = glucose + fructose

Which of the following is not a component of a carbohydrate? Carbon Phosphate Hydrogen Oxygen

Phosphate

Which of the following statements about polysaccharides are true? 1. Polysaccharides are broken down by hydrolysis reactions.2. Polysaccharides are long chains of monosaccharides.3. Polysaccharides are only considered complex carbohydrates when they are branched.4. Polysaccharides are the products of a process called gluconeogenesis.5. Starch is an example of a polysaccharide that is digestible by humans. 1, 2, 4, and 5 1, 3, 4, and 5 2, 3, 4, and 5 1, 2, and 4 1, 2, and 5 2, 3, and 4

1, 2, and 5

Which of the following statements are correct? Glucose and fructose need to be processed by the liver before entering other body cells. Glucose can be used for energy by nearly every cell of the body. High fructose corn syrup is 45% fructose and 55% glucose. High fructose corn syrup may increase the number of triglycerides found in the blood. 1, 2, 3, and 4 1 and 3 1, 2, and 4 2 and 4 2, 3, and 4

2 and 4

Which of the following will occur if a person doesn't have the enzyme lactase? 1. Lactose will be absorbed in the large intestine.2. Water will enter the lumen of the large intestine by osmosis.3. Lactose will pass through the small intestine and enter the large intestine.4. Lactose will be broken down into two galactose molecules.5. The person will experience symptoms of abdominal bloating, cramps, and diarrhea. 1, 3, and 5 1, 2, 3, and 4 2, 3, 4, and 5 2, 4, and 5 2, 3, and 5

2, 3, and 5

Why can't the human body breakdown cellulose? The human body lacks the enzymes to digest cellulose. Cellulose contains fructose, which is difficult to use in metabolic pathways. Cellulose is insoluble in water so it cannot be broken down. The bond configuration between glucose molecules is different in cellulose than it is in glycogen. All the above A, B, and D B and C A and D

A and D

In a person whose body makes lactase, where would you expect lactose to be digested and absorbed? Digested and absorbed in the small intestine Digested and absorbed in the large intestine Digested in the small intestine and absorbed in the large intestine Digested in the large intestine and absorbed in the small intestine

Digested and absorbed in the small intestine

Which one of the following statements about monosaccharides is false? Monosaccharides may combine to form polysaccharides. Monosaccharides form polysaccharides in the body primarily in the linear form. Monosaccharides form polysaccharides in the body that can be stored in the liver. Monosaccharides dissolve in water.

Monosaccharides form polysaccharides in the body primarily in the linear form.

Which one of the following statements about monosaccharides is true? They can be in linear or ring form. Different monosaccharides have the same structural formula but different molecular formulas. The structural formula for three common monosaccharides is C6H12O6. Two monosaccharides are produced when water is removed from a disaccharide. All the above A, B, and C

They can be in linear or ring form.

Glucose.............. is an isomer with fructose and maltose is the major nutrient for most cells of the body is regulated by the nervous system is a 5-carbon sugar and a monosaccharide

is the major nutrient for most cells of the body

A disaccharide............. is composed of two polysaccharides bound together would include sucrose (table sugar) is broken down into two monosaccharides in a dehydration synthesis reaction is all of the above

would include sucrose (table sugar)