Science cells test

Question 1

What is a cell membrane>

Answer 1

A cell membrane is a thin layer that forms a boundary, controlling what substances go in and out of the cell and contains the contents in the cell.

Question 1

What is a cell?

Answer 1

A cell is the smallest unit of life. All living things are made from it. It cannot be seen with the naked eye.

Question 2

Cell wall

Answer 2

The cell is a rigid structure that strengthens and protects the cell.

Question 3

Neuron

Answer 3

The neuron is a branched cell that sends signals to the brain through nerves.

Question 4

Red blood cell

Answer 4

the red blood cells carries oxygen through the body

Question 5

Chloroplast

Answer 5

Absorbs sunlight and collects energy from sugars. It contains chlorophyll and it is where photosynthesis takes place.

Question 6

Chlorophyll

Answer 6

A green substance that absorbs sunlight for photosynthesis.

Question 7

White blood cells

Answer 7

Protects you from infections

Question 8

What are the levels of organsiation?

Answer 8

Cell- tissue- organ- organ system- organism

Question 9

tissue

Answer 9

A group of similar cells that work together.

Question 10

unicelluar organism

Answer 10

Living things that are made up of a single cell

Question 11

What are examples of a unicellar organism

Answer 11

Bacteria, yeast

Question 12

Multicelluar organism

Answer 12

Living things that are made from 2 or more cells.

Question 13

examples of a multicellar organisms

Answer 13

humans, animals

Question 14

What is cytosol?

Answer 14

The green substance that fills a cell.

Question 15

Nuclelus

Answer 15

an organelle that controlls a cells activiety and stores dna

Question 16

Organelle

Answer 16

A structure in a cell that performs a function

Question 17

Organ

Answer 17

part of the body that performs a specific function

Question 18

specialised cell

Answer 18

a cell with unqiue structure performing certain functions in the body.

Question 19

Vacuole

Answer 19

organelle that stores fluids such as nutrients and wastes.

Question 20

fat cell

Answer 20

stores excess energy from food

Question 21

intestinal lining cell

Answer 21

cell with fingure like structures that absorb water.

Question 22

mitochondria

Answer 22

organelle that breaks down sugars to supply energy

Question 23

muscle cell

Answer 23

thing long cell