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SCIENCE Y9 REVISION > Biology > Flashcards

Flashcards in Biology Deck (18):
1

Cell membrane

Controls the movement of substances in and out of the shell

2

Mitochondria

Where most energy is released in respiration

3

Nucleus

Controls the activities of the cell

4

Cell wall

Strengthens the cell

5

Cytoplasm

Where most chemical processes take place and gives the cell its shape

6

Ribosomes

Protein synthesis happens here

7

Chloroplast

Absorbs light energy for photosynthesis. This also contains chlorophyll

8

Photosynthesis

Creates food by converting sunlight to the needed sugars

9

Vacuole

Stores food and waste and helps support the cell

10

Sperm cell

Found in the testes and Fertilises the egg cell

11

Palaside cell

Found in a plat and does photosynthesis

12

Egg cell

Found in the ovary and creates an embryo when fertilised

13

Ciliated cell

Found in lungs and moves mucus out of the lungs using its hairs

14

Root hair cell

Found in plant root and absorbs water from soil using its long hair to create a bigger surface area to catch and suck up water

15

Cell size magnification=

Image size
___________
Actual size

16

Stem cells

Special cells that start off normal and divides to a certain cell that significantly boosts it

17

Diffusion

The movement of a liquid or gas from an area of high concentration to an area of low concentration

18

Osmosis

The movement of water from an area of high concentration to an area of low concentration through a semi permeable membrane