cells

Question 1

Fill in the blank: The ribosomes make _______ in the cell.

Answer 1

ribsomes

Question 2

Define animal cell.

Answer 2

A cell that has a soft, flexible membrane and no cell wall.

Question 3

Define plant cell.

Answer 3

A cell that has a hard cell wall and contains chloroplasts for photosynthesis.

Question 4

What is the function of the nucleus?

Answer 4

It controls the cell and holds the genetic material (DNA).

Question 5

True or false: Chloroplasts are found in animal cells.

Answer 5

FALSE

Chloroplasts are responsible for photosynthesis and are found only in plant cells.

Question 6

Fill in the blank: The cell membrane controls _______ in and out of the cell.

Answer 6

substances

Question 7

What is the role of the mitochondria?

Answer 7

They release energy for the cell through respiration.

Question 8

Define cell wall.

Answer 8

A strong outer layer that gives shape and support to plant cells.

Question 9

What is the function of ribosomes?

Answer 9

They make proteins for the cell.

Question 10

True or false: Vacuoles are larger in plant cells than in animal cells.

Answer 10

TRUE

Plant cells typically have a large central vacuole for storage.

Question 11

What is the function of the cytoplasm?

Answer 11

It is the jelly-like substance that holds all the cell parts.

Question 12

What is the function of chlorophyll?

Answer 12

IIt traps sunlight for photosynthesis in plant cells.

Question 13

Fill in the blank: The microscope is used to view _______ objects.

Answer 13

small

Question 14

Define objective lens.

Answer 14

The lens closest to the specimen that provides magnification.

Question 15

What is the function of the stage on a microscope?

Answer 15

It holds the slide in place for viewing.

Question 16

True or false: The light source is not necessary for a microscope.

Answer 16

FALSE

A light source illuminates the specimen for better visibility.

Question 17

Fill in the blank: The fine focus knob is used for _______ adjustments.

Answer 17

precise

Question 18

What is the function of the diaphragm in a microscope?

Answer 18

It controls the amount of light reaching the specimen.

Question 19

Define resolution in microscopy.

Answer 19

The ability to distinguish two close objects as separate.How clearly you can see two objects as separate.

Question 20

Fill in the blank: The base of a microscope provides _______.

Answer 20

stability and support

Question 21

What is the function of the arm on a microscope?

Answer 21

It supports the body tube and connects it to the base.

Question 22

Fill in the blank: All living things are made of _______.

Answer 22

cells

Question 23

Define unicellular organism.

Answer 23

An organism made of only one cell (e.g. bacteria).

Question 24

Define multicellular organism.

Answer 24

An organism made of many cells (e.g. humans, plants).

Question 25

What does specialised cell mean?

Answer 25

A cell that has a specific job or function in the body.

Question 26

Give one example of a specialised animal cell.

Answer 26

Examples: red blood cell, nerve cell, muscle cell.

Question 27

Give one example of a specialised plant cell.

Answer 27

Examples: root hair cell, palisade cell, xylem cell.

Question 28

Fill in the blank: To focus a microscope, first use the _______ focus knob, then the fine focus knob.

Answer 28

coarse

Question 29

What is a specimen?

Answer 29

The object or sample you look at under a microscope.

Question 30

True or false: The nucleus controls what enters and leaves the cell.

Answer 30

False-cell membrane

Question 31

What is an organ system?

Answer 31

A group of organs working together to carry out a main function.

Question 32

What is an organ?

Answer 32

A structure made from different tissues that work together for one function.

Question 33

What is a tissue?

Answer 33

A group of similar cells working together to do a job.