Characteristics and Classification

Question 1

Movement

Answer 1

Action by an organism or part of an organism causing a change of position or place

Question 2

Respiation

Answer 2

The chemical reactions that break down nutrient molecules in living cells to release energy for metabolism

Question 3

Sensitivity

Answer 3

The ability to detect or sense stimuli in the internal or external environment and to make appropriate responses

Question 4

Growth

Answer 4

permanent increase in size and dry mass by an increase in cell number or cell size or both

Question 5

Reproduction

Answer 5

processes that make more of the same kind of organism

Question 6

Excretion

Answer 6

the removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements

Question 7

Nutrition

Answer 7

taking in of materials for energy, growth and development

Question 8

species definition

Answer 8

can be classified into groups by the features that they share e.g. all mammals have bodies covered in hair

Question 9

System of classification

Answer 9

Kingdom, Phylum, Class, Order, Family, Genus, Species
Remember : king Philip called over for good spaghetti

Question 10

What are the 5 kingdoms

Answer 10

Animals
Plants
Fungi
Protoctists
Prokaryotes

Question 11

What are the main features of all animals

Answer 11

• they are multicellular
• cells contain a nucleus but no cell walls or chloroplasts
• they feed on organic substances made by other living things

Question 12

What are the main fearure of all plants

Answer 12

• they are multicellular
• their cells contain a nucleus, chloroplasts and cellulose cell walls
• they all feed by photosynthesis

Question 13

Main features of all fungi

Answer 13

• usually multicellular
• cells have nuclei and cell walls not made from cellulose
• don’t photosynthesize but feed by saprophytic or parasitic

Question 14

saprophytic

Answer 14

feed on dead or decaying material

Question 15

Paracitic

Answer 15

feed on live material

Question 16

Main features of all protoctist

Answer 16

• most are unicellular but some are multicellular
• all have a nucleus, some may have cell walls and chloroplasts
  meaning some photosynthesise and others on organic substances made by other living things

Question 17

Main features of all Prokaryotes

Answer 17

• often unicellular
• cells have cell walls (not made of cellulose) and cytoplasm but no nucleus or mitochondria

Question 18

chlorophyll

Answer 18

absorbs energy from sunlight for the process of photosynthesis

Question 19

Ferns

Answer 19

Have leaves called fronds
Do not produce flowers but instead reproduce by spores produced on the underside of fronds

Question 20

How do you distinguish between monocotyledons and dicotyledons?

Answer 20

1) Flowers
- monocotyledons contain petals in multiples of 3
- dicotyledons contain petals in multiples of 4 or 5
2) Leaves
- Monocotyledons have parallel leaf veins
Dicotyledons have reticulated leaf veins (they’re all interconnected and form a web-like network throughout the leaf)

Question 20

Flowering plants

Answer 20

Reproduce sexually by means of flowers and seeds
Seeds are produced inside the ovary found at the base of the flower
Can be divided into two groups – monocotyledons & dicotyledons

Question 21

what and how viruses work?

Answer 21

• Not considered living
• x carry out the 7 processes
• Virus structure is simply genetic material (RNA or DNA) inside a protein coat