Yr9 Life Processes - General Flashcards Preview

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Flashcards in Yr9 Life Processes - General Deck (36):
1

Define Organism.

An object that carries out all the life functions

2

Define Non-living

An object which had never been alive

3

Define Cells

The building blocks of life

4

Define Movement

Moving the whole or part of the organisms

5

Define Respiration

Creating useful energy from food.

6

Define Sensitivity

Able to detect and respond to environmental changes

7

Define Reproduction

Able to produce offspring

8

Define Growth

Increase size or change in life stage

9

Define Excretion

Disposal of wastes from the body

10

Define Nutrition

Making or acquiring food

11

How does the photosynthesis process work?

Photosynthesis is the process occurring in the chloroplast where plants make glucose sugars from water and carbon dioxide using solar energy; solar energy is changed into chemical energy.

12

Define photosynthesis.

Plants using sunlight to synthesise nutrients from carbon dioxide and water.

13

What is the word equation of photosynthesis?

Carbon dioxide + water =(light energy + chlorophyll)= glucose + oxygen

14

How do you speed up photosynthesis?

Increase light, increase concentration of CO2, and increase temperature.

15

Define Ingestion.

Food is taken into the mouth.

16

Define Digestion.

Food is broken down by a physical force and enzymes.

17

Define Absorption.

Small particles pass into the blood capillaries.

18

Define Assimilation.

Small food enters cells and used for cellular processes

19

Egestion.

Undigested food which is not used leaves the anus as faeces.

20

What are the two types of digestion and explain them.

Mechanical is when the shape is physically changed so it can fit through the small diameter of the digestive system
Chemical is when the bonds are broken and this allows useful chemicals to be released and dissolved in the blood

21

What is chlorophyll?

Chemical in chloroplasts responsible for absorption of sunlight, appears as a green pigment in leaves.

22

Define life process?

The process of MRS C GREN carried out by all living organisms.

23

Define organelle and explain its use.

Parts of a cell that have specific functions.

24

Define starch.

The storage of sugar in a plant.

25

Define villi.

Small projections in the small intestine that increase the surface area for absorption.

26

Define capillaries.

Small blood vessels that deliver nutrients, and remove waste from individual cells

27

Recite MRS C GREEN

Movement, respiration, sensitivity, cells, growth, reproduction, excretion, nutrition.

28

What is the word equation for respiration?

glucose + oxygen = carbon dioxide + water

29

Label a plant cell

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30

Label an animal cell.

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31

Label a plant

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32

Label a leaf cross section

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33

Label the digestive system.

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34

Label a microscope

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35

What is the main function of the small intestine?

The main function is to absorb minerals and nutrients from food

36

What is the main function of the large intestine?

The main function is to absorb excess water from food not processed by the small intestine already