Science 1 Cells

Question 1

What is a nucleus

Answer 1

It controls the cell and is found in both animal and plant cells
-holds dna

Question 2

What is cell membranes

Answer 2

It protects the cell and filters what goes in and out the cell
It is found in plant and animal cells

Question 3

What is an organism

Answer 3

It’s a living creature made up of cells

Question 4

What is a cell

Answer 4

Cells are the basic building blocks of all living things. A group of the, can make tissue which can soon make organs

Question 4

Define microscope

Answer 4

They magnify miniature cells so they we are able to study them clearly

Question 6

Where is cell wall found in animal cells or plant cells

Answer 6

It is found only in plants

Question 7

What is cytoplasm

Answer 7

It makes the cell jelly like it it is the liquid inside the cell
-chemical reactions take place here

Question 8

What is a unicellular cell

Answer 8

an organism that is made up of one cell

Question 9

What is a flagellum

Answer 9

It is a tail that helps the cell to swim and survive

Question 10

What do red blood cells carry

Answer 10

They carry oxygen around the body

Question 11

What is a total magnification made up of

Answer 11

Eyepiece lens x objective lens magnification

Question 11

What are chloroplasts

Answer 11

The hold chlorophyll which provides pigment to dye the colour of the cell

Question 13

What is the cell wall

Answer 13

It ensures full security of the cell and allows it to be firm and hold up well.
It is found only in plants

Question 14

Mitochondria

Answer 14

Respiration takes place here

Question 15

Vacuole

Answer 15

Plant component

• contains cell sap
• keeps cell firm
• two types

Question 16

Two types of vacuole

Answer 16

• food vacuole = digests food

- contractile vacuole = removes waste

Question 17

Cilia

Answer 17

-assist with movement

-

Question 18

Specialised cell

Answer 18

A cell whose structure allows them to perform certain functions

Question 19

Nerve cell

Answer 19

An animal cell that transmits electrical impulses around the body

Question 20

Red blood cells

Answer 20

Animal cell

-transports oxygen around the body

Question 21

Root hair cell

Answer 21

• plant cell

- absorbs water /minerals from soil

Question 22

Sperm cell

Answer 22

-contains male genetic info

Question 23

Leaf cell

Answer 23

• contains lots of chloroplasts

- lots of photosynthesis happens

Question 24

Factors of nerve cell

Answer 24

• long and thin
• have connections at each end to join to other nerve cells
• helps transmit messages

Question 25

Red blood cell factors

Answer 25

• contains haemoglobin
• no nucleus
• disc shape increases surface area

Question 26

Sperm cells factors

Answer 26

• no nucleus
• stream lined = move faster
• tail = swim
• lots of mitochondria = lots of energy

Question 27

Leaf cell factors

Answer 27

-found on top of leaf
-allows to absorb as much sun light for photosynthesis
-

Question 28

Root hair cell factors

Answer 28

• absorb nutrients
• hair increases surface area
• no chloroplasts as there is no sunlight underground

Question 29

Plants wilt because

Answer 29

• lack of water
• shrink vacuole
• cell wall weakens
• plant cell becomes floppy and wilts

Question 30

Amoeba

Answer 30

Unicellular organisms

Question 31

Euglena

Answer 31

Unicellular organism performs photosynthesis

Question 32

Amoeba factors

Answer 32

• no fixed shape -shape like blob of jelly
• found in fresh water/salt water/wet soil / inside animals
• eat bacteria/algae = engulfs it
• reproduce via binary fission

Question 33

Euglena factors

Answer 33

• found in fresh water
• food = photosynthesis
• eye spot detects light
• flagellum =swims
• engulfs food if cannot make enough of their own food