Cells

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

What structure regulates the entry and exit of substances in a 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 known as the powerhouse of the cell?

Answer 5

Mitochondria.

Question 6

Which organelle is responsible for protein synthesis?

Answer 6

Ribosomes.

Question 7

What is the function of the endoplasmic reticulum?

Answer 7

It synthesizes proteins and lipids.

Question 8

True or False: Prokaryotic cells have a nucleus.

Answer 8

False.

Question 9

What is the primary function of the Golgi apparatus?

Answer 9

To modify, sort, and package proteins.

Question 10

What is the function of lysosomes?

Answer 10

To digest waste materials and cellular debris.

Question 11

What structure provides support and shape to plant cells?

Answer 11

Cell wall.

Question 12

Fill in the blank: Chloroplasts are found in __________ cells.

Answer 12

plant.

Question 13

What is the role of the plasma membrane?

Answer 13

It controls the movement of substances in and out of the cell.

Question 14

Which type of cell division results in two identical daughter cells?

Answer 14

Mitosis.

Question 15

True or False: Meiosis is involved in the production of gametes.

Answer 15

True.

Question 16

What is the term for the semi-permeable nature of the cell membrane?

Answer 16

Selective permeability.

Question 17

What is cytoskeleton’s main function?

Answer 17

To provide structural support and shape to the cell.

Question 18

What are the two main types of cells?

Answer 18

Prokaryotic and eukaryotic.

Question 19

What is the primary component of the cell membrane?

Answer 19

Phospholipids.

Question 20

True or False: Ribosomes can be found free-floating in the cytoplasm.

Answer 20

True.

Question 21

What is the function of the nucleus?

Answer 21

To store genetic information and coordinate cell activities.

Question 22

Fill in the blank: The __________ is a network of protein filaments that helps the cell maintain its shape.

Answer 22

cytoskeleton.

Question 23

What is the difference between rough and smooth endoplasmic reticulum?

Answer 23

Rough ER has ribosomes; smooth ER does not.

Question 24

What are vesicles?

Answer 24

Small membrane-bound sacs that transport substances within the cell.

Question 25

True or False: All cells have a cell wall.

Answer 25

False.

Question 26

What is a function of the vacuole in plant cells?

Answer 26

To store nutrients and waste products.

Question 27

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

Answer 27

Golgi apparatus.

Question 28

What is the role of centrioles in a cell?

Answer 28

To aid in cell division.

Question 29

What is the primary function of the cell membrane?

Answer 29

To protect the cell and regulate its internal environment.

Question 30

True or False: Eukaryotic cells are generally larger than prokaryotic cells.

Answer 30

True.

Question 31

What is the function of the nucleolus?

Answer 31

To produce ribosomal RNA (rRNA).

Question 32

Fill in the blank: Mitochondria are known for producing __________.

Answer 32

ATP (adenosine triphosphate).

Question 33

What are the two phases of the cell cycle?

Answer 33

Interphase and mitotic phase.

Question 34

What is the primary role of chlorophyll in chloroplasts?

Answer 34

To absorb light energy for photosynthesis.

Question 35

True or False: All cells contain DNA.

Answer 35

True.

Question 36

What is apoptosis?

Answer 36

Programmed cell death.

Question 37

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

Answer 37

chloroplast.

Question 38

What role do enzymes play in cellular processes?

Answer 38

They act as catalysts to speed up chemical reactions.

Question 39

True or False: The cell membrane is made up of a double layer of proteins.

Answer 39

False.

Question 40

What is the significance of the fluid mosaic model?

Answer 40

It describes the structure of the cell membrane as flexible and dynamic.

Question 41

What is the main purpose of cytokinesis?

Answer 41

To divide the cytoplasm of a parental cell into two daughter cells.

Question 42

Fill in the blank: __________ are specialized structures within a cell that perform specific functions.

Answer 42

Organelles.

Question 43

What is the role of the cell wall in plant cells?

Answer 43

To provide structure and protection.

Question 44

True or False: All cells have ribosomes.

Answer 44

True.

Question 45

What is the function of the plasma membrane's proteins?

Answer 45

To facilitate communication and transport across the membrane.

Question 46

What is the primary purpose of the cell cycle?

Answer 46

To ensure proper cell division and replication.

Question 47

Fill in the blank: __________ are the powerhouses of the cell, generating energy through respiration.

Answer 47

Mitochondria.