Part Two

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: DNA stands for Deoxyribonucleic Acid.

Answer 2

True

Question 3

Fill in the blank: The process by which DNA is copied to RNA is called _______.

Answer 3

Transcription

Question 4

What are the four bases of DNA?

Answer 4

Adenine, Thymine, Cytosine, Guanine

Question 5

Which molecule carries amino acids to the ribosome during protein synthesis?

Answer 5

tRNA (transfer RNA)

Question 6

Multiple Choice: Which of the following is a component of nucleotides? A) Amino acids B) Fatty acids C) Sugar D) Nucleic acids

Answer 6

C) Sugar

Question 7

What is the shape of the DNA molecule?

Answer 7

Double helix

Question 8

True or False: Proteins are made up of carbohydrates.

Answer 8

False

Question 9

What is the role of ribosomes in a cell?

Answer 9

To synthesize proteins

Question 10

Fill in the blank: The sequence of bases in DNA determines the _______ of proteins.

Answer 10

Sequence of amino acids

Question 11

Multiple Choice: Which type of RNA carries the genetic information from DNA? A) rRNA B) mRNA C) tRNA D) sRNA

Answer 11

B) mRNA

Question 12

What is the main function of enzymes in biochemical reactions?

Answer 12

To speed up the reactions

Question 13

True or False: All living organisms use the same genetic code.

Answer 13

True

Question 14

What process converts glucose into ATP in cells?

Answer 14

Cellular respiration

Question 15

Fill in the blank: The building blocks of proteins are called _______.

Answer 15

Amino acids

Question 16

What is the function of the cell membrane?

Answer 16

To control what enters and exits the cell

Question 17

Multiple Choice: What is the primary function of DNA? A) Energy storage B) Genetic information C) Structural support D) Cellular transport

Answer 17

B) Genetic information

Question 18

What is the term for a change in the DNA sequence?

Answer 18

Mutation

Question 19

True or False: Lipids are soluble in water.

Answer 19

False

Question 20

What is the primary energy currency of the cell?

Answer 20

ATP (Adenosine Triphosphate)

Question 21

Fill in the blank: The human genome consists of approximately _______ genes.

Answer 21

20,000-25,000

Question 22

What is the role of messenger RNA (mRNA) in protein synthesis?

Answer 22

To carry the genetic code from DNA to the ribosome

Question 23

Multiple Choice: Which of the following is a type of lipid? A) Glucose B) Starch C) Triglyceride D) Cellulose

Answer 23

C) Triglyceride

Question 24

What are the three components of a nucleotide?

Answer 24

A phosphate group, a sugar, and a nitrogenous base

Question 25

True or False: All proteins are enzymes.

Answer 25

False

Question 26

What is the role of DNA polymerase in DNA replication?

Answer 26

To synthesize new strands of DNA