Classification

Question 1

What are the features of living organisms?

Answer 1

Growth, Movement, Sensitivity, Excretion, Reproduction, Nutrition and Respiration

Question 2

Growth

Answer 2

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

Question 3

Movement

Answer 3

An action by an organism or part of an organism that results in a change of position or place.

Question 4

Respiration

Answer 4

The chemical reactions in cells,c that break down nutrient molecules and release energy for metabolism.

Question 5

Metabolism

Answer 5

Metabolism is the process by which your body converts what you eat and drink into energy.

Question 6

Sensitivity

Answer 6

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

Question 7

Excretion

Answer 7

Removal of waste products, toxic materials, and substances in excess of requirements of metabolism (chemical reactions in cells including respiration).

Question 8

Nutrition

Answer 8

Taking of materials for energy, growth, and development; plants require light, carbon dioxide, water, and ions; animals need organic compounds and ions and usually need water.

Question 9

What are all cells made up of?

Answer 9

• Cytoplasm
• Cell membrane
• DNA
• Ribosomes
• Enzymes
• Mitochondria
• Permanent vacuole
• • Cell wall
• • Chloroplasts

Question 10

DNA

Answer 10

Makes up genetic material

Question 11

Ribosmes

Answer 11

mRNA molecules pass that passes through ribosomes are made into proteins, by joining amino acids together

Question 12

Enzymes

Answer 12

Biological catalysts which help the body break down and make molecules, to help anaerobic respiration

Question 13

6 Kingdoms

Answer 13

• Plants
• Animals
• Protists
• Fungi
• Archaebacteria
• Eubacteria

Question 14

Animals (Characteristics)

Answer 14

They are multicellular and each cell have a nucleus and cell membrane, but no cell wall or chloroplasts. They feed on organic substance made by other organisms

Question 15

Plants (Characteristics)

Answer 15

They are multicellular organisms and their cells are made up of a nucleus, cell wall, which are made of cellulose and contain chloroplasts. They feed through photosynthesis.

Question 16

Fungi (Characteristics)

Answer 16

Fungi are usually multicellular and contain a nuclei. They have cell walls which are not made of cellulose or chlorophyll. They feed on parasitic nutrition.

Question 17

Protoctists (Characteristics)

Answer 17

They can be multicellular or unicellular. Their cells contain a nucleus. Cells walls and chloroplasts may be present, some feed by photosynthesis and other feed on organic food.

Question 18

Prokaryotes

Answer 18

Often unicellular and contain no nucleus and mitochondria. The cells have cell walls, not made of cellulose.

Question 19

Viruses

Answer 19

Viruses are non living cells, they take over the host cells machinery and creates copies of themselves, which then invades other cells. The host cell is usually killed. Viruses are unable to move, feed, excrete, grow or reproduce on their own.

Question 20

Species

Answer 20

A group of organisms that can reproduce and produce fertile offspring

Question 21

Binominal system

Answer 21

An internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and species.

Question 22

Phylum vertebrates

Answer 22

They have a supporting rod running along their back (back bone).

Question 23

Class fish

Answer 23

Fishes are vertebrates with scaly skin. They have gills and fins.

Question 24

Class Amphibians

Answer 24

They have a moist and scale less skin, they lay their eggs in water but often live on land. Their gills develop into lungs as they age.

Question 25

Class Repltiles

Answer 25

They have scaly skins unlike amphibians, and they lay eggs with a rubber shell

Question 26

Class Birds

Answer 26

Birds are vertebrates with feathers and a beak, their heart has four chambers and are able to fly using their wings which were developed by forelimbs. Birds are endothermic.

Question 27

Class mammels

Answer 27

Mammals are vertebrates with hair, diaphragm, teeth (incisors, canines, pre molars and molars) and a 4 chambered heart. They have a placenta and their young feed on milk from mammary glands.

Question 28

Phylum Arthropods

Answer 28

They have joint legs but no backbone. they also have an exoskeloton

Question 29

Insects

Answer 29

Insects are arthropods with 3 pairs of joint legs along with two pairs of wings. They breathe through their trachea and their body is divided in head, thorax and abdomen

Question 30

Crustaceans

Answer 30

Crustaceans are arthropods with more than 4 pairs of legs with no millipedes or centipedes. They breathe through gills

Question 31

Arachnids

Answer 31

Arachnids are arthropods with four pairs of legs and breathe through gills called book lungs.

Question 32

Myriapods

Answer 32

These are centipedes and millipedes so their body consists of many segment with each one having a pair of legs

Question 33

Ferns

Answer 33

Plants with roots, stems and leaves, which are called fronds. They don not produce flowers and reproduce by spores

Question 34

Flowering Plants

Answer 34

Plants with roots, stems and leaves. These reproduce sexually, the seeds are produced inside the ovary in the flower.

Question 35

Monocotyledons

Answer 35

Plants with the seed having only one cotyledon are called as monocotyledons.

Question 36

Dicotyledons

Answer 36

Plants with the seed having two cotyledons are called as dicotyledons.