Nature And Variety Of Life

Question 1

How do we remember the characteristics of a living organism ?

Answer 1

• MRS H GREN

Question 2

What is Movement ?

Answer 2

This is the ability to change location position

Question 3

What is Reproduction ?

Answer 3

This is how many individuals are made (offspring)

Question 4

What is sensitivity ?

Answer 4

this is the ability to detect and respond to changes in the environment (stimuli)

Question 5

What is homoeostasis ?

Answer 5

This is the ability to control internal conditions

Question 6

What is growth ?

Answer 6

This is the increase in mass or volume of an organism

Question 7

What is respiration ?

Answer 7

This is how organisms release energy from their food

Question 8

What is excretion ?

Answer 8

This is how organisms with themselves of waste produced by Chemical reactions in cells

Question 9

What is nutrition ?

Answer 9

This is when organisms require the materials they need to carry out all of the living processes

Question 10

What are organisms called when they can exist as one cell ?

Answer 10

Unicellular

Question 11

What is an organism ?

Answer 11

And entire living thing that can carry out life processes

Question 12

What are organ system is made up of ?

Answer 12

Several different organs working together to carry out a function

Question 13

What are organs made up of ?

Answer 13

Several different tissues working together to carry out a function

Question 14

What are tissues made up of ?

Answer 14

They are a group of similar cells with the same function

Question 15

What are cells made up of ?

Answer 15

A number of organelles, which are structures that carry out a specific Process the cell needs to survive

Question 16

Order of size in an organism

Answer 16

• organism
• organ system
• organ
• tissue
• cell
• organelle

Question 17

What is the function of the nucleus ?

Answer 17

• Contains chromosomes which carry The genetic material.

* Controls the activities of the cell (by controlling which proteins are made).

Question 18

What is the function of cytoplasm ?

Answer 18

Where the chemical reactions take place

Question 19

What is the function of the cell surface membrane ?

Answer 19

Controls what enters and leaves the cell-it is selectively permeable

Question 20

What is the function of the chloroplast ?

Answer 20

• absorbs light energy which is used to make glucose in the process of photosynthesis
• this glucose is food for the plant

Question 21

What is the function of the vacuole ?

Answer 21

Membrane filled with watery liquid called cell sap, which stores dissolved sugars, mineral ions and other solutes .

Question 22

What is the function of the cell wall ?

Answer 22

• Good structure and rigidity to the plant cell, helping it keep its shape.
• made of cellulose

Question 23

What is a specialised cell ?

Answer 23

When a cell adapts to perform a specific function

Question 24

Are plants multicellular or unicellular ?

Answer 24

Multicellular

Question 25

Are plants autotrophic or heterotrophic ?

Answer 25

Autotrophic because they carry out photosynthesis to make their own nutrients

Question 26

What are the cell walls made of in a plant ?

Answer 26

Cellulose

Question 27

How do plants store carbohydrates ?

Answer 27

As starch or sucrose

Question 28

Are animals multicellular or unicellular organism ?

Answer 28

Multicellular

Question 29

Are animals autotrophic or heterotrophic ?

Answer 29

Heterotropic because they consume other organisms to obtain nutrients

Question 30

Do you animals have cell walls ?

Answer 30

No

Question 31

How do animals store carbohydrates ?

Answer 31

As glycogen

Question 32

Are protoctist multicellular or unicellular ?

Answer 32

Unicellular

Question 33

What organelles do protoctist have ?

Answer 33

They have cell membranes, cytoplasm and a nucleus

Question 34

Are protoctist autotrophic or heterotrophic ?

Answer 34

So are heterotrophic but some are autotrophic

Question 35

Give a example of a protoctist

Answer 35

Plasmodium causes malaria

Question 36

Are Fungi multicellular or unicellular ?

Answer 36

They can be both

Question 37

Are fungi able to photosynthesise ?

Answer 37

No, as they do not contain chloroplasts

Question 38

Are fungi autotrophic or heterotrophic ?

Answer 38

Heterotrophic = saprotrophic nutrition, they feed by extracellular secretion of digestive enzymes onto food material and absorption of the organic product

Question 39

Do fungi have cell walls ?

Answer 39

Yes, made of chitin

Question 40

How do you fungi store carbohydrates ?

Answer 40

They may store carbohydrates as glycogen

Question 41

What are fungi made up of ?

Answer 41

hyphae, which make up mycelium

Question 42

Can fungi be pathogenic ?

Answer 42

Yes

Question 43

Is a virus a cell ?

Answer 43

No

Question 44

What are virus made up of ?

Answer 44

Genetic material is surrounded by a protein coat

Question 45

How do viruses reproduce ?

Answer 45

They can only reproduce inside a living cell

Question 46

What are some viruses surrounded by ?

Answer 46

A membrane called an envelope

Question 47

Examples of viruses

Answer 47

HIV and AIDS

Question 48

Are bacteria multicellular or unicellular ?

Answer 48

Unicellular

Question 49

What is bacteria made up of ?

Answer 49

A cell wall, cell membrane and cytoplasm

Question 50

What is bacterias cell wall made up of ?

Answer 50

Polysaccharides and proteins

Question 51

Do you bacteria contain a nucleus ?

Answer 51

No, but contains DNA

Question 52

Are bacteria autotrophic or heterotrophic ?

Answer 52

Sharma autotrophic, but most to heterotrophic

Question 53

What are pathogens ?

Answer 53

An organism which causes harm