Quiz about Biology 1406-02P CH 3

Question 1

Which of the following is NOT a class of biological macromolecules?

Accepted Answer

D) Vitamins

Answer

A) Carbohydrates

Answer

B) Lipids

Answer

C) Proteins

Question 2

Modern biochemistry studies biological molecules ________ of cells.

Accepted Answer

outside

Answer

inside

Answer

on the surface

Answer

in the nucleus

Question 3

Which of the following is made of glycerol and three fatty acids?

Accepted Answer

Triglycerides

Answer

Phospholipids

Answer

Proteins

Answer

Nucleic acids

Question 4

Lipids are a class of biological macromolecules.

Accepted Answer

True

Answer

False

Question 5

Fill in the blank: The monomers of nucleic acids are ________.

Accepted Answer

nucleotides

Answer

amino acids

Answer

monosaccharides

Answer

fatty acids

Question 6

The framework of biological molecules consists primarily of carbon bonded to which of the following?

Accepted Answer

Both A and B

Answer

Only Carbon

Answer

O, N, S, P or H

Answer

Only Hydrogen

Question 7

How many covalent bonds can carbon form?

Accepted Answer

Up to four covalent bonds

Answer

Only one covalent bond

Answer

Up to two covalent bonds

Answer

Up to six covalent bonds

Question 8

Hydrocarbons are molecules consisting only of ______ and ______.

Accepted Answer

carbon and hydrogen

Answer

carbon and oxygen

Answer

hydrogen and nitrogen

Answer

carbon and nitrogen

Question 9

Are hydrocarbons generally polar or nonpolar?

Accepted Answer

Nonpolar

Answer

Polar

Question 10

Which of the following is NOT a type of biomolecule shown in the diagram?

Accepted Answer

Vitamins

Answer

Lipids

Answer

Nucleic Acid

Answer

Carbohydrates

Answer

Proteins

Question 11

Which type of bond is represented by three lines between two carbon atoms in the diagram?

Accepted Answer

Triple bond

Answer

Single bond

Answer

Double bond

Question 12

Fill in the blank: The subunit of starch and glycogen is ________.

Accepted Answer

Glucose

Answer

Fructose

Answer

Sucrose

Answer

Cellulose

Question 13

Fill in the blank: The function of cellulose is ________.

Accepted Answer

Structural support in plant cell walls

Answer

Energy storage in animals

Answer

Transport of oxygen in blood

Answer

Catalyzing metabolic reactions

Question 14

Fill in the blank: Chitin provides ________ support.

Accepted Answer

Structural

Answer

Chemical

Answer

Thermal

Answer

Electrical

Question 15

Fill in the blank: DNA is made up of ________.

Accepted Answer

Nucleotides

Answer

Amino acids

Answer

Fatty acids

Answer

Monosaccharides

Question 16

Fill in the blank: The function of RNA is ________.

Accepted Answer

Needed for gene expression

Answer

Providing structural support to bones

Answer

Storing genetic information in the nucleus

Answer

Regulating blood sugar levels

Question 17

Fill in the blank: Functional proteins are made of ________.

Accepted Answer

Amino acids

Answer

Fatty acids

Answer

Nucleotides

Answer

Monosaccharides

Question 18

Fill in the blank: Structural proteins provide ________.

Accepted Answer

Support

Answer

Energy

Answer

Hormones

Answer

Enzymes

Question 19

Fill in the blank: Triglycerides are composed of glycerol and ________.

Accepted Answer

three fatty acids

Answer

two amino acids

Answer

four nucleotides

Answer

one monosaccharide

Question 20

Fill in the blank: Phospholipids are important for ________.

Accepted Answer

Cell membranes

Answer

Hormone production

Answer

DNA replication

Answer

Muscle contraction

Question 21

Fill in the blank: Prostaglandins act as ________ messengers.

Accepted Answer

Chemical

Answer

Electrical

Answer

Thermal

Answer

Optical

Question 22

Fill in the blank: Steroids have ________ fused carbon rings.

Accepted Answer

Four

Answer

Three

Answer

Five

Answer

Six

Question 23

Fill in the blank: Terpenes are made of ________ carbon chains.

Accepted Answer

Long

Answer

Short

Answer

Branched

Answer

Aromatic

Question 24

What are functional groups in biomolecules?

Accepted Answer

Specific groups of atoms within molecules

Answer

Types of proteins

Answer

DNA sequences

Answer

Water molecules

Question 25

Functional groups determine whether a molecule is _____, basic, polar, or nonpolar, which is important for how it works in your body.

Accepted Answer

acidic

Answer

neutral

Answer

radioactive

Answer

metallic

Question 26

Functional groups provide unique properties and determine how molecules behave in chemical reactions.

Accepted Answer

True

Answer

False

Question 27

Functional groups can help molecules dissolve in water.

Accepted Answer

True

Answer

False

Question 28

What are the typical ingredients in an Iced Shaken Espresso?

Accepted Answer

Espresso, milk or a milk alternative, sweeteners or flavor syrups

Answer

Tea, honey, lemon

Answer

Water, sugar, lemon

Answer

Coffee, ice, chocolate

Question 29

Fill in the blank: An Iced Shaken Espresso contains ________ as a source of caffeine.

Accepted Answer

espresso

Answer

green tea

Answer

cola

Answer

matcha

Question 30

Which of the following carbohydrates can be found in an Iced Shaken Espresso if dairy milk is used?

Accepted Answer

Lactose

Answer

Sucrose

Answer

Maltose

Answer

Cellulose

Question 31

How many calories are in an Iced Shaken Espresso according to the nutrition facts table?

Accepted Answer

100

Answer

50

Answer

200

Answer

150

Question 32

The total fat content in an Iced Shaken Espresso is 2 grams.

Accepted Answer

True

Answer

False

Question 33

Which of the following is NOT a lipid found in an Iced Shaken Espresso?

Accepted Answer

Cellulose

Answer

Saturated fats

Answer

Unsaturated fats

Answer

Coffee oils (cafestol, kahweol)

Question 34

What is the function of carbohydrates found in a granola bar?

Accepted Answer

Energy source (simple and complex carbs).

Answer

Structural support for bones.

Answer

Production of genetic material.

Answer

Regulation of body temperature.

Question 35

How much protein is present in a granola bar per serving?

Accepted Answer

5g

Answer

2g

Answer

8g

Answer

12g

Question 36

What is the function of fats found in a granola bar?

Accepted Answer

Long-term energy, insulation.

Answer

Immediate energy, muscle growth.

Answer

DNA replication, oxygen transport.

Answer

Bone strengthening, vision improvement.

Question 37

How many grams of carbohydrates (all sugars) are present in a serving of soda?

Accepted Answer

39g

Answer

15g

Answer

25g

Answer

60g

Question 38

What is the function of sodium found in soda?

Accepted Answer

Regulates fluid balance.

Answer

Provides energy for muscles.

Answer

Aids in digestion of proteins.

Answer

Acts as a vitamin supplement.

Question 39

What are the four major types of biomolecules?

Accepted Answer

Proteins, Lipids, Carbohydrates, and Nucleic Acids

Answer

DNA, RNA, ATP, and Water

Answer

Vitamins, Minerals, Hormones, and Enzymes

Answer

Monomers, Polymers, Atoms, and Molecules

Question 40

What are the four major types of biomolecules?

Accepted Answer

Proteins, Lipids, Carbohydrates, and Nucleic Acids

Answer

DNA, RNA, ATP, and Water

Answer

Vitamins, Minerals, Hormones, and Enzymes

Answer

Monomers, Polymers, Atoms, and Molecules

Question 41

What are the two main categories of organic molecules shown in the diagram?

Accepted Answer

Polymers and Nonpolymers

Answer

Acids and Bases

Answer

Metals and Nonmetals

Answer

Ions and Isotopes

Question 42

Which of the following is a polymer?

Accepted Answer

Carbohydrates

Answer

Lipids

Answer

Triglycerides

Answer

Phospholipids

Question 43

The monomers of proteins are ________.

Accepted Answer

Amino acids

Answer

Fatty acids

Answer

Nucleotides

Answer

Monosaccharides

Question 44

Which type of macromolecule is made of nucleotides?

Accepted Answer

Nucleic acids

Answer

Carbohydrates

Answer

Proteins

Answer

Lipids

Question 45

Simple sugars are the monomers of which macromolecule?

Accepted Answer

Carbohydrates

Answer

Proteins

Answer

Nucleic acids

Answer

Lipids

Question 46

Triglycerides are made of ________ and ________.

Accepted Answer

Glycerol and 3 fatty acids

Answer

Glucose and 2 fatty acids

Answer

Amino acids and phosphate

Answer

Glycerol and 2 amino acids

Question 47

Phospholipids are made of glycerol, 2 fatty acids, and a ________.

Accepted Answer

polar head

Answer

sugar group

Answer

hydrophobic tail

Answer

protein chain

Question 48

Lipids are classified as nonpolymers in the diagram.

Accepted Answer

True

Answer

False

Question 49

What functional group do all organic molecules contain according to the diagram?

Accepted Answer

Functional groups

Answer

Amino group

Answer

Carboxyl group

Answer

Hydroxyl group

Question 50

Which functional group makes a molecule acidic?

Accepted Answer

Carboxyl (-COOH)

Answer

Methyl (-CH3)

Answer

Amino (-NH2)

Answer

Hydroxyl (-OH)

Question 51

What are isomers?

Accepted Answer

Molecules with the same molecular formula but different structures, arrangements, or spatial orientations

Answer

Molecules with different molecular formulas

Answer

Molecules with the same structure but different atoms

Answer

Molecules with different numbers of atoms

Question 52

Isomers have the same molecular formula but different chemical and physical properties.

Accepted Answer

True

Answer

False

Question 53

Fill in the blank: Structural isomers differ in the _______ of the carbon skeleton.

Accepted Answer

structure

Answer

length

Answer

mass

Answer

color

Question 54

What is the main difference between stereoisomers and other types of isomers?

Accepted Answer

Stereoisomers differ in how groups are attached or arranged in space

Answer

Stereoisomers have different molecular formulas

Answer

Stereoisomers have different elements

Answer

Stereoisomers are always mirror images

Question 55

Enantiomers are a subcategory of stereoisomers. What is unique about enantiomers?

Accepted Answer

They are mirror image molecules

Answer

They are not mirror images

Answer

They have different molecular formulas

Answer

They have the same arrangement

Question 56

Fill in the blank: Enantiomers are referred to as ______ because they have four unique groups attached.

Accepted Answer

Chiral

Answer

Achiral

Answer

Isotopic

Answer

Planar

Question 57

Diastereomers are mirror images of each other.

Accepted Answer

False

Answer

True

Question 58

What are the two main categories of macromolecules shown in the diagram?

Accepted Answer

Polymers and Nonpolymers

Answer

Lipids and Nucleic acids

Answer

Carbohydrates and Proteins

Answer

Monomers and Dimers

Question 59

Which of the following is NOT a type of polymer?

Accepted Answer

Lipids

Answer

Carbohydrates

Answer

Nucleic acids

Answer

Proteins

Question 60

What are the monomers of proteins?

Accepted Answer

Amino acids

Answer

Fatty acids

Answer

Nucleotides

Answer

Monosaccharides

Question 61

Carbohydrates can be classified into which two types?

Accepted Answer

Simple sugars and Complex

Answer

Proteins and Fats

Answer

Vitamins and Minerals

Answer

Lipids and Nucleic acids

Question 62

What are the monomers of nucleic acids?

Accepted Answer

Nucleotides

Answer

Amino acids

Answer

Fatty acids

Answer

Monosaccharides

Question 63

Triglycerides are made of which components?

Accepted Answer

Glycerol and 3 fatty acids

Answer

Glycerol and 2 fatty acids

Answer

Glycerol and 3 amino acids

Answer

Glycerol and 3 monosaccharides

Question 64

Phospholipids are made of which components?

Accepted Answer

Glycerol, 2 fatty acids, and a polar head

Answer

Glycerol, 3 fatty acids, and a nonpolar tail

Answer

2 glycerol molecules and 2 fatty acids

Answer

Glycerol, 1 fatty acid, and a sugar group

Biology 1406-02P CH 3

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