BIOLOGY

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: All living organisms are made up of cells.

Answer 2

True

Question 3

What is the process by which plants convert sunlight into energy?

Answer 3

Photosynthesis

Question 4

Fill in the blank: The __________ is the control center of the cell.

Answer 4

nucleus

Question 5

What are the four main types of macromolecules?

Answer 5

Carbohydrates, lipids, proteins, and nucleic acids

Question 6

Which organelle is known as the powerhouse of the cell?

Answer 6

Mitochondria

Question 7

Multiple Choice: Which of the following is NOT a function of proteins? A) Enzymatic activity B) Energy storage C) Structural support D) Genetic information

Answer 7

D) Genetic information

Question 8

What is the term for the genetic makeup of an organism?

Answer 8

Genotype

Question 9

True or False: All mutations are harmful.

Answer 9

False

Question 10

Fill in the blank: The __________ is a double membrane that surrounds the nucleus.

Answer 10

nuclear envelope

Question 11

What is the role of ribosomes in a cell?

Answer 11

Protein synthesis

Question 12

Multiple Choice: Which of the following processes occurs in the mitochondria? A) Photosynthesis B) Cellular respiration C) DNA replication D) Protein synthesis

Answer 12

B) Cellular respiration

Question 13

What is the name of the process by which cells divide?

Answer 13

Cell division

Question 14

True or False: DNA and RNA are both types of nucleic acids.

Answer 14

True

Question 15

Fill in the blank: The __________ theory states that all living things are composed of cells.

Answer 15

cell

Question 16

What is natural selection?

Answer 16

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Question 17

Multiple Choice: Which part of the cell is responsible for regulating what enters and leaves the cell? A) Cytoplasm B) Cell wall C) Cell membrane D) Nucleus

Answer 17

C) Cell membrane

Question 18

What is the purpose of the scientific method?

Answer 18

To systematically investigate and understand natural phenomena.

Question 19

True or False: A hypothesis must be testable.

Answer 19

True

Question 20

Fill in the blank: __________ are organisms that make their own food.

Answer 20

Autotrophs

Question 21

What is the primary function of chloroplasts?

Answer 21

To conduct photosynthesis

Question 22

Multiple Choice: Which of the following is a prokaryotic organism? A) Plant B) Animal C) Bacteria D) Fungus

Answer 22

C) Bacteria

Question 23

What is an ecosystem?

Answer 23

A community of living organisms and their physical environment interacting as a system.

Question 24

True or False: Energy flows through an ecosystem in a cycle.

Answer 24

False

Question 25

Fill in the blank: __________ is the term for a symbiotic relationship where both species benefit.

Answer 25

Mutualism

Question 26

What is a food chain?

Answer 26

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Question 27

Multiple Choice: Which of the following is a biotic factor in an ecosystem? A) Water B) Temperature C) Plants D) Soil

Answer 27

C) Plants

Question 28

What is biodiversity?

Answer 28

The variety of life in the world or a particular habitat or ecosystem.

Question 29

True or False: Extinction is a natural part of evolution.

Answer 29

True

Question 30

Fill in the blank: The __________ is the layer of gases surrounding the Earth.

Answer 30

atmosphere

Question 31

What is cellular respiration?

Answer 31

The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Question 32

Multiple Choice: Which of the following is NOT a stage of cellular respiration? A) Glycolysis B) Krebs cycle C) Electron transport chain D) Photosynthesis

Answer 32

D) Photosynthesis

Question 33

What is the role of enzymes in biological reactions?

Answer 33

To speed up the reactions by lowering the activation energy.

Question 34

True or False: Enzymes are consumed in chemical reactions.

Answer 34

False

Question 35

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

Answer 35

Amino acids