Biology

Question 1

What is the basic unit of life?

Answer 1

The cell

Question 2

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

Answer 2

True

Question 3

Fill in the blank: The process by which plants make their own food is called __________.

Answer 3

photosynthesis

Question 4

What is the main function of the mitochondria?

Answer 4

To produce energy (ATP) through respiration

Question 5

Which type of cell contains a nucleus?

Answer 5

Eukaryotic cell

Question 6

What is the function of ribosomes in a cell?

Answer 6

To synthesize proteins

Question 7

Multiple Choice: Which of the following is NOT a characteristic of living organisms? A) Growth B) Reproduction C) Inability to respond to stimuli D) Metabolism

Answer 7

C) Inability to respond to stimuli

Question 8

What is the role of chlorophyll in plants?

Answer 8

To absorb light energy for photosynthesis

Question 9

True or False: DNA is the genetic material found in all living organisms.

Answer 9

True

Question 10

What are the two main types of cells?

Answer 10

Prokaryotic and Eukaryotic

Question 11

Fill in the blank: The __________ is responsible for controlling the activities of the cell.

Answer 11

nucleus

Question 12

What is osmosis?

Answer 12

The movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Question 13

Multiple Choice: Which part of the plant is primarily responsible for water absorption? A) Leaves B) Roots C) Stems D) Flowers

Answer 13

B) Roots

Question 14

What is the function of the cell membrane?

Answer 14

To regulate what enters and leaves the cell.

Question 15

True or False: All cells have a cell wall.

Answer 15

False

Question 16

What is the primary source of energy for most ecosystems?

Answer 16

The sun

Question 17

Fill in the blank: The __________ is a gel-like substance within the cell where organelles are found.

Answer 17

cytoplasm

Question 18

What are enzymes?

Answer 18

Biological catalysts that speed up chemical reactions in the body.

Question 19

Multiple Choice: Which of the following is a method of asexual reproduction? A) Binary fission B) Pollination C) Fertilization D) Budding

Answer 19

A) Binary fission

Question 20

What is the significance of the fossil record?

Answer 20

It provides evidence for the history of life and evolution.

Question 21

True or False: Plants are autotrophs.

Answer 21

True

Question 22

What is the main purpose of cellular respiration?

Answer 22

To convert glucose into usable energy (ATP).

Question 23

Fill in the blank: The __________ is a group of similar cells that perform a specific function.

Answer 23

tissue

Question 24

What is biodiversity?

Answer 24

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

Question 25

Multiple Choice: Which process involves the transfer of pollen from male to female parts of a flower? A) Germination B) Pollination C) Fertilization D) Photosynthesis

Answer 25

B) Pollination

Question 26

What is the role of decomposers in an ecosystem?

Answer 26

To break down dead organic matter and recycle nutrients back into the ecosystem.