characteristics of life

Question 1

What is diversity?

Answer 1

Biological diversity refers to the variety of
living things on Earth, their genetic
differences, and variety in ecosystems

Question 2

The animal kingdom is divided into groups called classes name some

Answer 2

Reptiles Birds Mammals

Question 3

Common Characteristics in Living things

Answer 3

• are highly organised
• are composed of tiny units called cells
• grow
• excrete
• move
• react to their surroundings
• feed
• reproduce

Question 4

METABOLISM

Answer 4

Metabolism is the sum of all the chemical reactions
that occur in the cells of living organisms

Question 5

These reactions are responsible for the processes
of

Answer 5

• Growth
• Repair
• Responsiveness
• Reproduction

Question 6

Anabolic Reactions

Answer 6

These reactions use energy to join small molecules
together to form larger molecules

Question 7

example for anabolic reaction

Answer 7

Photosynthesis

Question 8

Catabolic Reactions

Answer 8

These reactions use energy to break down large
molecules into smaller ones

Question 9

example for catabolic reaction

Answer 9

Respiration

Question 10

Continuity of Life

Answer 10

Continuity of life is the ability of an organism to
exist from generation to the next

Question 11

what do you need to achieve continuity

Answer 11

reproduction and heredity

Question 12

Genes

Answer 12

hereditary factors that are passed on
from one generation to the next during
reproduction

Question 13

How do we define Life?

Answer 13

Life is defined as the procession of all of the
five characteristics of life

Question 14

what are the most basic level of organisation

Answer 14

Cells

Question 15

what are the two types of organisims

Answer 15

unicellular
multicellular

Question 16

give an example for unicellular

Answer 16

amoeba

Question 17

give an example for multicellular

Answer 17

humans

Question 18

what are cells organised into

Answer 18

tissues

Question 19

what are tissues organised into

Answer 19

organs

Question 20

what are organs organised into

Answer 20

organ system

Question 21

what are organ systems irganised into

Answer 21

organisms

Question 22

Nutrition

Answer 22

the way that organisms obtain
and use food

Question 23

what is food needed for

Answer 23

energy

Question 24

example of things that make their own food and name the process

Answer 24

Plants, algae and some bacteria
photosynthesis

Question 25

things that otain food from other organisms example

Answer 25

Animals, fungi, amoeba and most bacteria

Question 26

what is the most basic source of energy in all nutrition

Answer 26

The sun

Question 27

Sources of Nutrition In Animals

Answer 27

feed on other organisms

Question 28

Sources of NutritionI n Plants

Answer 28

make food by photosynthesis

Question 29

Energy flow

Answer 29

Sun -> Plants -> Animals

Question 30

Excretion

Answer 30

the elimination of the waste products of metabolism from a cell, tissue or organ

Question 31

All living things must get rid of waste material, what would happen if it were allowed to accumulate

Answer 31

it would become toxic to the organism

Question 32

Methods of excretion in animals

Answer 32

the urinary system, skin and lungs

Question 33

Methods of excretion in plants

Answer 33

the stomata

Question 34

Response

Answer 34

reaction to a stimulus in environment

Question 35

Adaptation

Answer 35

plants and animals change in response to long-term changes in the environment; these may be passed on to future generations (Charles Darwin)

Question 36

Methods of response in animal

Answer 36

organised structures respond to light, sound, touch, etc.

Question 37

Methods of response in plants

Answer 37

growth towards or away from a stimulus e.g. light, water, fertilisers, etc.

Question 38

Reproduction

Answer 38

the ability of an organism to produce new individuals of its own kind and pass on genetic

Question 39

what is reproduction necessary for

Answer 39

for the survival of the species

Question 40

how can an offspring be

Answer 40

Offspring can be the same as or different from parent(s)

Question 41

what are the methods of reproduction

Answer 41

Asexual Sexual

Question 42

Asexual

Answer 42

e.g. in bacteria and protista – binary fission (simple division in two) – mitosis

Question 43

Sexual

Answer 43

e.g. in plants and animals – involves two parents and the production of male and female gametes