Variety of living organisms

Question 2

Prokaryote

Answer 2

They do not have a true nucleus
They do not have membrane bound organelles

Question 3

Eukaryote

Answer 3

They have a nucleus
They have membrane bound organelles

Question 4

Prokaryote

Answer 4

Bacteria

Question 5

Eukaryote

Answer 5

Protista
Fungi
Plant
Animal

Question 6

5 kingdoms

Answer 6

Bacteria
Protista
Fungi
Plant
Animal

Question 7

Unicellular or multicellular: plants

Answer 7

Multicellular

Question 8

Their cells contain chloroplast: plants

Answer 8

It does

Question 9

Feed: plants

Answer 9

By photosynthesis

Question 10

Unicellular or multicellular: animal

Answer 10

Multicellular

Question 11

Their cells contain chloroplast: animal

Answer 11

Do not contain chloroplast

Question 12

Has nervous coordination: animal

Answer 12

They have

Question 13

carry out photosynthesis: animals

Answer 13

Are not able to carry photosynthesis

Question 14

Cell wall: animals

Answer 14

They have no cell wall

Question 15

Able to move from one place to another: animals

Answer 15

They are able to

Question 16

Stores carbohydrates as: animals

Answer 16

Glycogen

Question 17

carry out photosynthesis: plants

Answer 17

they are able to carry out photosynthesis

Question 18

Cell wall is made up of: plants

Answer 18

Cellulose

Question 19

Stores carbohydrates as: plants

Answer 19

Sucrose or starch

Question 20

Has nervous coordination: plants

Answer 20

Does not

Question 21

Protista (protoctists) (4)

Answer 21

These are microscopic single-celled organisms
Some like amoeba are like animal cells
While some like chlorella have chloroplast and so are more like plants
A pathogenic example is plasmodium which causes malaria

Question 22

Fungi (unicellular or multicellular)

Answer 22

Unicellular like yeast
Multicellular like mould

Question 23

Fungi cell

Answer 23

Mitochondria
Cytoplasm
Nucleus
Vacuole
Cell memberane
cell wall

Question 24

Fungi (11)

Answer 24

They are not able to carry out photosynthesis
Their cells do not contain chloroplast
They feed by saprotrophic nutrition
(Multicellular) Their body is usually organized into a mycelium made from thread like structures called hyphae
Some fungi are parasitic and feed on living organisms
Their cells have a cell wall made of chitin
They feed on extracellula secretions of
digestive enzymes onto food materials and absorption of the organic products this is known as saprotrophic nutrition
Some fungi store carbohydrates as glycogen
Examples like mucor which has the typical hyphal structure
And yeast is single-celled
They are usually multicellular but some are single-celled
Their cells contain a nucleus with a distinct membrane

Question 25

carry out photosynthesis: fungi

Answer 25

They are not able to

Question 26

Their cells contain chloroplast: fungi

Answer 26

Do not contain chloroplast

Question 27

Feed by: fungi

Answer 27

Saprotrophic nutrition

Question 28

Saprotrophic nutrition

Answer 28

Hyphae secretes digestive enzymes onto the food Enzymes breakdown food into soluble substances like sugar Mould absorbs the digested products

Question 29

Viruses and their causes: influenza

Answer 29

Causes flu

Question 30

Viruses and their causes: HIV virus

Answer 30

Causes AIDS

Question 31

Viruses and their causes: Tobacco mosaic virus

Answer 31

Causes discolouring of the leaves of tobacco plants preventing the formation of chloroplast

Question 34

Pathogens

Answer 34

Is any microorganism that causes disease in another organism (in plants or animals)

Question 35

Pathogens examples

Answer 35

Fungi Bacteria Protoctists Viruses

Question 36

Living organisms or non living: viruses

Answer 36

are not living organisms

Question 37

Smaller or larger than bacteria: viruses

Answer 37

smaller

Question 38

Are parasitic or not parasitic

Answer 38

Are parasitic

Question 39

MRS GREN: viruses

Answer 39

Can only reproduce inside living cells

Question 40

Viruses infect

Answer 40

Every type of organism

Question 41

Reproduction in viruses

Question 42

Examples of viruses

Answer 42

Tobacco mosaic virus Influenza virus HIV virus

Question 43

Viruses don’t have

Answer 43

A nucleus or cytoplasm

Question 44

Structure of virus: genetic material DNA or RNA

Answer 44

The genetic material can be either DNA or RNA having genes enough just to reproduce in host cell

Question 45

Structure of virus: protein coat

Answer 45

Used for protection of genetic material

Question 46

Envelope

Answer 46

It is a ‘stolen cell membrane’ from host cell. Viruses do not make this nor do all viruses have this too

Question 47

Bacterium

Answer 47

They are microscopic single-celled organisms

Question 48

Structure of bacteria

Answer 48

Nucleoid (DNA) Plasmids Cytoplasm Capsule Cell wall Flagellum Plasma membrane

Question 49

Structure of bacteria: cell wall

Answer 49

Gives protection to the cell and keeps the shape of the cell. It is made up of peptidoglycan

Question 50

Structure of bacteria: plasma membrane

Answer 50

Controls the movement of substances in and out of cells

Question 51

Structure of bacteria: Capsule

Answer 51

Gives extra protection for some bacteria

Question 52

Structure of bacteria: Cytoplasm

Answer 52

Site where chemical reactions take place

Question 53

Structure of bacteria: Nucleoid (DNA)

Answer 53

No true nucleus but DNA lies loosely in the cytoplasm

Question 54

Structure of bacteria: plasmids

Answer 54

Small circular rings of DNA carrying some bacterial genes

Question 55

Structure of bacteria: flagellum

Answer 55

Present only in moving bacteria which helps bacteria to move through water by rotating it

Question 56

Nutrition in bacteria

Answer 56

Feed on other living or dead organisms- decomposes Carry out photosynthesis

Question 57

Examples of bacteria:

Answer 57

Lactobacillus Pneumococcus

Question 58

Lactobacillus

Answer 58

Used in production of yogurt from milk

Question 59

Pneumococcus

Answer 59

Is a pathogen causing pneumonia