Chapter 3 P 38-51

Question 1

What is a macromolecule?

Answer 1

DNA, polymer, proteins, RNA

Question 2

Cells link monomers together to make polymers through what reaction?

Answer 2

Dehydration reaction

Question 3

What is a reverse reaction of a Dehydration reaction?

Answer 3

Hydrolysis

Question 4

If a reaction is producing water what is the reaction called?

Answer 4

Dehydration reaction

Question 5

What is a monosaccharide?

Answer 5

Carbohydrate

Question 6

What are the 4 categories of biomolecules in all living things?

Answer 6

Carbohydrates, lipids, proteins, and nucleic acids

Question 7

What is the most common saccharide?

Answer 7

Sucrose or table sugar

Question 8

Is fructose a monosaccharide or a simple sugar?

Answer 8

Both

Question 9

What is starch? Polymer, monomer, carbohydrate, protein, lipid, or nucleic acid?

Answer 9

Polymer/carbohydrate

Question 10

When glucose comes together to form glycogen what is formed?

Answer 10

Water and a bond are formed

Question 11

Are lipids hydrophobic or hydrophilic?

Answer 11

Hydrophobic

Question 12

What is fat made of?

Answer 12

Glycerol molecules and 3 fatty acid molecules and dehydration reaction

Question 13

What is the difference between saturated and unsaturated fat?

Answer 13

Saturated fat has the most # of hydrogen atoms and is straight, unsaturated fat has the least amount of hydrogen atoms and is bent

Question 14

What fats are solid at room temperature?

Answer 14

Saturated fats

Question 15

Amino acids are linked together to form ____ also known as ____

Answer 15

Polypeptides, proteins

Question 16

What does cholesterol do in the body (p. 45)?

Answer 16

Component of cell membranes; forms steroids and hromones like testosterone and estrogen

Question 17

Name two things that proteins do in the body (p. 46 figure 3.15)

Answer 17

Provide support help movement transport stuff around and as enzymes promote chemical reactions

Question 18

Amino acids are (i) hydrophilic (ii) hydrophobic (iii) both

Answer 18

See figure 3.16 - they are usually both

Question 19

What biomolecules will contain phosphorous?

Answer 19

Nucleic acids (see fig 3.22)

Question 20

When two amino acids are linked together by _____ a ____ is formed and ______ is a by-product

Answer 20

Dehydration reaction, dipeptide, water