Science

Question 1

What is the cell theory?

Answer 1

The cell theory states that all living things are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells.

Question 2

True or False: All cells have a nucleus.

Answer 2

False

Question 3

Fill in the blank: The basic unit of life is the __________.

Answer 3

cell

Question 4

What are the two main types of cells?

Answer 4

Prokaryotic and Eukaryotic cells.

Question 5

Which type of cell lacks a defined nucleus?

Answer 5

Prokaryotic cell.

Question 6

What organelle is known as the powerhouse of the cell?

Answer 6

Mitochondria.

Question 7

Multiple Choice: Which of the following is a characteristic of eukaryotic cells? A) No nucleus B) Membrane-bound organelles C) Smaller size

Answer 7

B) Membrane-bound organelles

Question 8

What is the function of the cell membrane?

Answer 8

To protect the cell and regulate what enters and exits the cell.

Question 9

True or False: Plant cells have chloroplasts which are involved in photosynthesis.

Answer 9

True

Question 10

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

Answer 10

cytoplasm

Question 11

What are ribosomes responsible for?

Answer 11

Protein synthesis.

Question 12

Multiple Choice: Which structure is found in plant cells but not in animal cells? A) Cell wall B) Nucleus C) Mitochondria

Answer 12

A) Cell wall

Question 13

What is the role of the endoplasmic reticulum?

Answer 13

To synthesize proteins and lipids.

Question 14

True or False: All cells can reproduce independently.

Answer 14

False

Question 15

What process do cells use to convert glucose into energy?

Answer 15

Cellular respiration.

Question 16

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

Answer 16

nucleus

Question 17

What is the primary difference between prokaryotic and eukaryotic cells?

Answer 17

Eukaryotic cells have a nucleus and membrane-bound organelles, while prokaryotic cells do not.

Question 18

Multiple Choice: Which of the following is NOT a part of the cell theory? A) Cells are the basic unit of life B) All cells arise from pre-existing cells C) Cells can spontaneously generate

Answer 18

C) Cells can spontaneously generate

Question 19

What is the function of lysosomes?

Answer 19

To digest waste materials and cellular debris.

Question 20

True or False: The cell wall provides structure and support to animal cells.

Answer 20

False

Question 21

What is the main function of the Golgi apparatus?

Answer 21

To modify, package, and distribute proteins and lipids.

Question 22

Fill in the blank: Bacteria are an example of __________ cells.

Answer 22

prokaryotic

Question 23

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

Answer 23

Cell membrane.

Question 24

Multiple Choice: What is the primary function of chloroplasts? A) Energy production B) Photosynthesis C) Cellular respiration

Answer 24

B) Photosynthesis

Question 25

What type of cell division do eukaryotic cells undergo?

Answer 25

Mitosis.

Question 26

True or False: All cells are unicellular.

Answer 26

False