Biology 1

Question 1

What is the basic unit of life?

Answer 1

The cell.

Question 2

True or False: All cells have a nucleus.

Answer 2

False.

Question 3

What structure controls the movement of substances in and out of the cell?

Answer 3

The cell membrane.

Question 4

Fill in the blank: The jelly-like substance inside the cell is called __________.

Answer 4

cytoplasm.

Question 5

What organelle is responsible for energy production?

Answer 5

Mitochondria.

Question 6

Multiple Choice: Which of the following is found in plant cells but not in animal cells?
A) Mitochondria
B) Chloroplasts
C) Ribosomes
D) Golgi apparatus

Answer 6

B) Chloroplasts.

Question 7

What part of the cell is responsible for protein synthesis?

Answer 7

Ribosomes.

Question 8

True or False: The cell wall is present in both plant and animal cells.

Answer 8

False.

Question 9

What is the function of the endoplasmic reticulum?

Answer 9

To synthesize proteins and lipids.

Question 10

Fill in the blank: The __________ is involved in packaging and distributing proteins.

Answer 10

Golgi apparatus.

Question 11

Short Answer: What is the primary function of lysosomes?

Answer 11

To digest waste materials and cellular debris.

Question 12

Multiple Choice: Which type of transport does not require energy?
A) Active transport
B) Passive transport
C) Bulk transport
D) Vesicular transport

Answer 12

B) Passive transport.

Question 13

What is osmosis?

Answer 13

The movement of water across a selectively permeable membrane.

Question 14

True or False: Facilitated diffusion requires ATP.

Answer 14

False.

Question 15

Fill in the blank: __________ transport requires energy to move substances against their concentration gradient.

Answer 15

Active.

Question 16

What is the purpose of the cell membrane’s lipid bilayer?

Answer 16

To provide a barrier to protect the cell and regulate what enters and leaves.

Question 17

Short Answer: What role do proteins play in the cell membrane?

Answer 17

They assist in transport and communication across the membrane.

Question 18

Multiple Choice: Which of the following is NOT a function of the cell membrane?
A) Protection
B) Communication
C) Energy production
D) Transport regulation

Answer 18

C) Energy production.

Question 19

What structures are responsible for the movement of materials within the cell?

Answer 19

Vesicles.

Question 20

True or False: All cells have a cell wall.

Answer 20

False.

Question 21

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

Answer 21

nucleus.

Question 22

What is the role of chloroplasts?

Answer 22

To conduct photosynthesis in plant cells.

Question 23

Multiple Choice: Which of the following organelles is involved in detoxifying harmful substances?
A) Lysosomes
B) Smooth endoplasmic reticulum
C) Mitochondria
D) Ribosomes

Answer 23

B) Smooth endoplasmic reticulum.

Question 24

What is the function of the cytoskeleton?

Answer 24

To provide structural support and shape to the cell.

Question 25

True or False: Prokaryotic cells have membrane-bound organelles.

Answer 25

False.

Question 26

Fill in the blank: The __________ is the porous barrier that surrounds the cell.

Answer 26

cell membrane.

Question 27

Short Answer: What is the primary component of the cell membrane?

Answer 27

Phospholipids.

Question 28

Multiple Choice: Which type of cell lacks a defined nucleus? A) Eukaryotic B) Prokaryotic C) Animal D) Plant

Answer 28

B) Prokaryotic.

Question 29

What is the main difference between active and passive transport?

Answer 29

Active transport requires energy, while passive transport does not.

Question 30

True or False: Endocytosis is a form of active transport.

Answer 30

True.

Question 31

Fill in the blank: The __________ is responsible for the synthesis of ribosomal RNA.

Answer 31

nucleolus.

Question 32

What is the role of the plasma membrane in a cell?

Answer 32

To regulate the entry and exit of substances.