Cell

Question 1

What is the primary function of the cell wall in plant cells?

Answer 1

To provide structural support and protection.

Question 2

True or False: The plasma membrane is selectively permeable.

Answer 2

True

Question 3

Fill in the blank: The cell wall is primarily composed of _______.

Answer 3

cellulose

Question 4

What is the main component of the plasma membrane?

Answer 4

Phospholipids

Question 5

Which type of cells have a cell wall?

Answer 5

Plant cells, fungi, and some prokaryotes.

Question 6

True or False: The plasma membrane contains proteins that assist in transport.

Answer 6

True

Question 7

What is the role of the cell membrane?

Answer 7

To regulate the movement of substances in and out of the cell.

Question 8

Which structure provides rigidity to plant cells?

Answer 8

Cell wall

Question 9

What type of organisms typically have a cell wall made of peptidoglycan?

Answer 9

Bacteria

Question 10

Fill in the blank: The fluid mosaic model describes the structure of the _______.

Answer 10

plasma membrane

Question 11

What is the function of glycoproteins in the plasma membrane?

Answer 11

To facilitate cell recognition and signaling.

Question 12

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

Answer 12

B) Energy production

Question 13

What is the primary component of the fungal cell wall?

Answer 13

Chitin

Question 14

True or False: The cell wall is found in animal cells.

Answer 14

False

Question 15

What type of transport requires no energy and moves substances down their concentration gradient?

Answer 15

Passive transport

Question 16

Fill in the blank: The plasma membrane is made up of a _______ bilayer.

Answer 16

phospholipid

Question 17

What is osmosis?

Answer 17

The diffusion of water across a selectively permeable membrane.

Question 18

Which process involves the engulfing of large particles by the plasma membrane?

Answer 18

Endocytosis

Question 19

True or False: The cell wall is involved in cell communication.

Answer 19

False

Question 20

What is the role of cholesterol in the plasma membrane?

Answer 20

To maintain membrane fluidity.

Question 21

Fill in the blank: The _______ is the outermost layer of a plant cell.

Answer 21

cell wall

Question 22

Which type of transport involves the use of energy?

Answer 22

Active transport

Question 23

What is the significance of the extracellular matrix?

Answer 23

It provides structural and biochemical support to surrounding cells.

Question 24

Multiple Choice: Which of the following is a characteristic of the plasma membrane? A) Rigid structure B) Fluid and dynamic C) Completely impermeable

Answer 24

B) Fluid and dynamic

Question 25

What are plasmodesmata?

Answer 25

Channels between plant cells that allow for communication and transport.

Question 26

True or False: The cell wall can regulate the entry and exit of substances.

Answer 26

False

Question 27

What is the primary function of the cell membrane?

Answer 27

To control the movement of substances into and out of the cell.

Question 28

Fill in the blank: Plant cells use _______ to maintain turgor pressure.

Answer 28

water

Question 29

Which type of signaling involves the binding of ligands to receptors on the plasma membrane?

Answer 29

Signal transduction

Question 30

What is the difference between prokaryotic and eukaryotic cell walls?

Answer 30

Prokaryotic cell walls contain peptidoglycan, while eukaryotic cell walls are made of cellulose or chitin.

Question 31

True or False: The plasma membrane is made up of a single layer of lipids.

Answer 31

False

Question 32

What is the role of transport proteins in the plasma membrane?

Answer 32

To facilitate the movement of substances across the membrane.

Question 33

Fill in the blank: The plasma membrane is also known as the _______ membrane.

Answer 33

cell

Question 34

Which structure protects the cell from osmotic pressure?

Answer 34

Cell wall

Question 35

What are the two main types of transport mechanisms across the plasma membrane?

Answer 35

Passive and active transport.

Question 36

Multiple Choice: Which component of the plasma membrane helps in cell recognition? A) Phospholipids B) Cholesterol C) Glycoproteins

Answer 36

C) Glycoproteins

Question 37

True or False: The cell wall is permeable to all substances.

Answer 37

True

Question 38

What is the primary purpose of the cell membrane?

Answer 38

To protect the cell and maintain homeostasis.

Question 39

Fill in the blank: The cell wall provides _______ to the plant cells.

Answer 39

shape

Question 40

What is the function of aquaporins in the plasma membrane?

Answer 40

To facilitate the transport of water molecules.

Question 41

Which type of cell lacks a defined cell wall?

Answer 41

Animal cells

Question 42

True or False: The cell wall is involved in nutrient transport.

Answer 42

False

Question 43

What is a key characteristic of the fluid mosaic model?

Answer 43

It describes the plasma membrane as a flexible layer made of lipid molecules with proteins embedded.