Biological Molecules (Ai Generated)

Question 1

What are the four main types of biological molecules?

Answer 1

Carbohydrates, lipids, proteins, and nucleic acids.

Question 2

What is the basic unit of carbohydrates?

Answer 2

Monosaccharides.

Question 3

True or False: Lipids are soluble in water.

Answer 3

False.

Question 4

Fill in the blank: Proteins are made up of ________.

Answer 4

amino acids.

Question 5

What is the primary function of nucleic acids?

Answer 5

To store and transmit genetic information.

Question 6

Choose the correct answer: Which of the following is a polysaccharide? A) Glucose B) Starch C) Fructose

Answer 6

B) Starch.

Question 7

What type of bond links amino acids together?

Answer 7

Peptide bonds.

Question 8

True or False: DNA is a type of protein.

Answer 8

False.

Question 9

What are the two main types of nucleic acids?

Answer 9

DNA and RNA.

Question 10

Fill in the blank: The primary structure of a protein is determined by its ________ sequence.

Answer 10

amino acid.

Question 11

What is the function of enzymes?

Answer 11

To catalyze biochemical reactions.

Question 12

Choose the correct answer: Which of the following is not a lipid? A) Triglycerides B) Phospholipids C) Cellulose

Answer 12

C) Cellulose.

Question 13

What is the structural feature of phospholipids?

Answer 13

They have a hydrophilic head and two hydrophobic tails.

Question 14

True or False: All proteins are enzymes.

Answer 14

False.

Question 15

What is the role of carbohydrates in living organisms?

Answer 15

To provide energy and structural support.

Question 16

Fill in the blank: The process of protein synthesis occurs in the ________ of the cell.

Answer 16

ribosomes.

Question 17

What is the name of the bond formed between two monosaccharides?

Answer 17

Glycosidic bond.

Question 18

Choose the correct answer: Which of the following is a function of lipids? A) Energy storage B) Catalysis C) Genetic information

Answer 18

A) Energy storage.

Question 19

What are the building blocks of nucleic acids?

Answer 19

Nucleotides.

Question 20

True or False: RNA is double-stranded.

Answer 20

False.

Question 21

What is the function of cholesterol in the cell membrane?

Answer 21

To maintain membrane fluidity.

Question 22

Fill in the blank: The secondary structure of proteins includes ________ and ________.

Answer 22

alpha helixes and beta pleated sheets.

Question 23

What is the role of ribosomes in protein synthesis?

Answer 23

To translate mRNA into polypeptides.

Question 24

Choose the correct answer: Which of the following is a characteristic of enzymes? A) They are consumed in reactions B) They lower activation energy C) They are always proteins

Answer 24

B) They lower activation energy.

Question 25

What type of lipid is primarily used for energy storage?

Answer 25

Triglycerides.

Question 26

True or False: Glycogen is a storage form of glucose in animals.

Answer 26

True.

Question 27

What is the main component of the cell wall in plants?

Answer 27

Cellulose.

Question 28

Fill in the blank: The tertiary structure of a protein is determined by ________ interactions.

Answer 28

R-group.

Question 29

What is the primary function of RNA?

Answer 29

To act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Question 30

Choose the correct answer: Which of the following is a saturated fat? A) Olive oil B) Butter C) Fish oil

Answer 30

B) Butter.

Question 31

What type of bond is formed between fatty acids and glycerol in lipids?

Answer 31

Ester bond.

Question 32

True or False: Enzymes can function at any temperature.

Answer 32

False.

Question 33

What is the role of ATP in the cell?

Answer 33

To provide energy for cellular processes.

Question 34

Fill in the blank: The sequence of nucleotides in DNA is responsible for ________.

Answer 34

genetic coding.

Question 35

What are the two strands of DNA held together by?

Answer 35

Hydrogen bonds.

Question 36

Choose the correct answer: Which of the following is a function of proteins? A) Energy storage B) Structural support C) Genetic information

Answer 36

B) Structural support.

Question 37

What is the role of the enzyme amylase?

Answer 37

To break down starch into sugars.

Question 38

True or False: All amino acids are identical in structure.

Answer 38

False.

Question 39

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

Answer 39

sugar and phosphate.

Question 40

What is the function of the lipid bilayer in cell membranes?

Answer 40

To create a barrier that separates the inside of the cell from the outside environment.

Question 41

Choose the correct answer: Which of the following is not a function of carbohydrates? A) Energy source B) Structural component C) Hormonal regulation

Answer 41

C) Hormonal regulation.

Question 42

What is the primary structure of proteins determined by?

Answer 42

The sequence of amino acids.

Question 43

True or False: The structure of a protein determines its function.

Answer 43

True.

Question 44

Fill in the blank: Enzymes are ________ that speed up chemical reactions.

Answer 44

catalysts.

Question 45

What is a characteristic feature of unsaturated fats?

Answer 45

They contain one or more double bonds between carbon atoms.

Question 46

Choose the correct answer: Which of the following is a characteristic of enzymes? A) They are specific B) They are non-specific C) They are consumed in reactions

Answer 46

A) They are specific.

Question 47

What type of reaction joins amino acids together?

Answer 47

Condensation reaction.

Question 48

True or False: All lipids are hydrophobic.

Answer 48

False.

Question 49

What is the main role of triglycerides in the body?

Answer 49

To store energy.

Question 50

Fill in the blank: The genetic code is read in sets of three nucleotides called ________.

Answer 50

codons.

Question 51

What is the main function of cellulose in plants?

Answer 51

To provide structural support.

Question 52

Choose the correct answer: Which of the following is a function of nucleotides? A) Energy storage B) Genetic information C) Both A and B

Answer 52

C) Both A and B.

Question 53

What is the role of the enzyme lactase?

Answer 53

To break down lactose into glucose and galactose.

Question 54

True or False: Proteins can be denatured by changes in pH.

Answer 54

True.

Question 55

Fill in the blank: The tertiary structure of proteins can be stabilized by ________ interactions.

Answer 55

disulfide.

Question 56

What are the two main components of triglycerides?

Answer 56

Glycerol and fatty acids.

Question 57

Choose the correct answer: Which of the following is an example of a disaccharide? A) Sucrose B) Starch C) Glucose

Answer 57

A) Sucrose.

Question 58

What is the primary function of phospholipids in cell membranes?

Answer 58

To form a bilayer that acts as a barrier.

Question 59

True or False: The primary structure of a protein can be altered by mutations in DNA.

Answer 59

True.

Question 60

Fill in the blank: The ________ structure of proteins refers to the overall three-dimensional shape.

Answer 60

quaternary.

Question 61

What is the role of the enzyme catalase?

Answer 61

To break down hydrogen peroxide into water and oxygen.

Question 62

Choose the correct answer: Which of the following is not a function of proteins? A) Transport B) Defense C) Energy storage

Answer 62

C) Energy storage.

Question 63

What is the process of breaking down glucose called?

Answer 63

Glycolysis.

Question 64

True or False: Saturated fats are liquid at room temperature.

Answer 64

False.

Question 65

Fill in the blank: The main type of energy currency in cells is ________.

Answer 65

ATP.

Question 66

What is the role of RNA polymerase?

Answer 66

To synthesize RNA from a DNA template.

Question 67

Choose the correct answer: Which of the following is a structural protein? A) Hemoglobin B) Collagen C) Enzymes

Answer 67

B) Collagen.

Question 68

What is the main difference between DNA and RNA?

Answer 68

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.

Question 69

True or False: All carbohydrates are sugars.

Answer 69

False.

Question 70

Fill in the blank: The process by which proteins are synthesized from mRNA is called ________.

Answer 70

translation.

Question 71

What is the main function of insulin?

Answer 71

To regulate blood glucose levels.