science-ch-1

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 part of the cell contains genetic material?

Answer 3

The nucleus.

Question 4

Fill in the blank: The _______ is a semi-permeable membrane that surrounds the cell.

Answer 4

cell membrane.

Question 5

What is the function of ribosomes?

Answer 5

Protein synthesis.

Question 6

Which organelle is known as the powerhouse of the cell?

Answer 6

Mitochondria.

Question 7

What structure is responsible for photosynthesis in plant cells?

Answer 7

Chloroplasts.

Question 8

True or False: Prokaryotic cells have a nucleus.

Answer 8

False.

Question 9

What is the function of the endoplasmic reticulum?

Answer 9

Protein and lipid synthesis.

Question 10

Which organelle is involved in packaging and distributing proteins?

Answer 10

Golgi apparatus.

Question 11

What is the purpose of lysosomes?

Answer 11

Digestion and waste removal.

Question 12

Fill in the blank: The _______ provides structural support to plant cells.

Answer 12

cell wall.

Question 13

What is the primary component of the cell membrane?

Answer 13

Phospholipids.

Question 14

Which process involves the movement of water across a semipermeable membrane?

Answer 14

Osmosis.

Question 15

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

Answer 15

True.

Question 16

What is the role of the cytoskeleton?

Answer 16

Maintaining cell shape and structure.

Question 17

What structure is found in plant cells but not in animal cells?

Answer 17

Chloroplasts.

Question 18

What organelle is responsible for detoxifying harmful substances?

Answer 18

Smooth endoplasmic reticulum.

Question 19

Fill in the blank: _______ are small membrane-bound sacs that transport substances within the cell.

Answer 19

Vesicles.

Question 20

What is the primary function of the cell membrane?

Answer 20

Regulating what enters and exits the cell.

Question 21

True or False: The nucleolus is involved in ribosome production.

Answer 21

True.

Question 22

What type of cell lacks a membrane-bound nucleus?

Answer 22

Prokaryotic cell.

Question 23

What is the function of the vacuole in plant cells?

Answer 23

Storage of substances and maintaining turgor pressure.

Question 24

Which organelle contains enzymes for digestion?

Answer 24

Lysosomes.

Question 25

Fill in the blank: The _______ is a jelly-like substance that fills the cell.

Answer 25

cytoplasm.

Question 26

What is the function of centrioles?

Answer 26

Involved in cell division.

Question 27

What is the primary role of the plasma membrane?

Answer 27

To protect the cell and control the movement of substances.

Question 28

True or False: Chloroplasts are found in both plant and animal cells.

Answer 28

False.

Question 29

What is the function of the cell wall?

Answer 29

To provide support and protection to the cell.

Question 30

Which component of the cell is responsible for energy production?

Answer 30

Mitochondria.

Question 31

Fill in the blank: The _______ is the site of protein synthesis.

Answer 31

ribosome.

Question 32

What is the role of the Golgi apparatus?

Answer 32

Modifying, sorting, and packaging proteins.

Question 33

What type of cells contain chloroplasts?

Answer 33

Plant cells.

Question 34

True or False: The cytoplasm is found only in eukaryotic cells.

Answer 34

False.

Question 35

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

Answer 35

Cell membrane.

Question 36

What is the primary function of the rough endoplasmic reticulum?

Answer 36

Protein synthesis, due to ribosomes attached to its surface.

Question 37

Fill in the blank: _______ are the sites of ATP production in the cell.

Answer 37

Mitochondria.

Question 38

What is the function of microtubules?

Answer 38

Providing structure and shape to the cell.

Question 39

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

Answer 39

True.

Question 40

What process do cells use to divide?

Answer 40

Cell division.

Question 41

What type of transport requires energy?

Answer 41

Active transport.

Question 42

Fill in the blank: The _______ helps maintain the shape of the cell and allows for movement.

Answer 42

cytoskeleton.

Question 43

What is the function of the plasma membrane's phospholipid bilayer?

Answer 43

To create a barrier that separates the interior of the cell from the outside environment.