Lesson 4

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 plants convert sunlight into chemical energy is called __________.

Answer 3

Photosynthesis

Question 4

What is the function of ribosomes in a cell?

Answer 4

Protein synthesis

Question 5

Multiple choice: Which of the following is a type of macromolecule? A) Lipids B) Water C) Sodium D) Oxygen

Answer 5

A) Lipids

Question 6

What is the term for an organism’s complete set of DNA?

Answer 6

Genome

Question 7

True or False: Mitosis results in two identical daughter cells.

Answer 7

True

Question 8

Fill in the blank: The __________ is the powerhouse of the cell.

Answer 8

Mitochondria

Question 9

What type of bond holds the two strands of DNA together?

Answer 9

Hydrogen bonds

Question 10

Multiple choice: Which of the following is NOT a type of RNA? A) mRNA B) tRNA C) rRNA D) qRNA

Answer 10

D) qRNA

Question 11

What is the primary function of the cell membrane?

Answer 11

To regulate what enters and exits the cell

Question 12

True or False: The theory of evolution was proposed by Charles Darwin.

Answer 12

True

Question 13

Fill in the blank: __________ are organisms that can produce their own food through photosynthesis.

Answer 13

Autotrophs

Question 14

What is the term for the physical and functional expression of genes?

Answer 14

Phenotype

Question 15

Multiple choice: Which of the following is a prokaryotic organism? A) Human B) Bacteria C) Fungi D) Plant

Answer 15

B) Bacteria

Question 16

What is the function of enzymes in biological reactions?

Answer 16

To speed up chemical reactions

Question 17

True or False: All mutations are harmful to an organism.

Answer 17

False

Question 18

Fill in the blank: The __________ is the site of photosynthesis in plant cells.

Answer 18

Chloroplast

Question 19

What is the name of the process by which cells divide to form gametes?

Answer 19

Meiosis

Question 20

Multiple choice: Which of the following is a characteristic of living organisms? A) Growth B) Respiration C) Reproduction D) All of the above

Answer 20

D) All of the above

Question 21

What is the role of the nucleus in a cell?

Answer 21

To store genetic material

Question 22

True or False: Proteins are made up of amino acids.

Answer 22

True

Question 23

Fill in the blank: __________ are the building blocks of proteins.

Answer 23

Amino acids

Question 24

What is the term for the variety of life in the world or a particular habitat?

Answer 24

Biodiversity

Question 25

Multiple choice: Which of the following processes occurs in the mitochondria? A) Glycolysis B) Krebs cycle C) Photosynthesis D) Fermentation

Answer 25

B) Krebs cycle

Question 26

What is the primary purpose of the scientific method?

Answer 26

To investigate and understand natural phenomena