Question 1. Cell

Question 1

What is cell?

Answer 1

Basic units of all living things

Question 2

Function of Mitochondria

Answer 2

Generates energy

Question 3

Function of Centriole

Answer 3

Forms spindle fibre during cell division in animal cells

Question 4

Function of Golgi Apparatus

Answer 4

Processes,modifies,packs and transport chemicals such as protein,carbohydrate and glycoprotein

Question 5

Function of Plasma Membrane

Answer 5

Controls movement of substances into and out of the cell

Question 6

Function of Lysosome

Answer 6

*-Hydrolyses complex organic molecules
such as protein,nucleic acid and lipid
*-Breaks down bacteria and components
of damaged cell

Question 7

Function of Nucleus/Nuclei

Answer 7

-Control all cell activities
-Has chromosomes that contain DNA

Question 8

What is DNA

Answer 8

DNA determines the cell characteristic and metabolic function

Question 9

Function of Ribosome

Answer 9

Site for protein synthesis

Question 10

Function of Endoplasmic Reticulum

Answer 10

• Transport system within the cell
• Provide a wide surface for enzyme attachment and biochemical reaction

Question 11

Function of Rough Endoplasmic Reticulum

Answer 11

Transport protein synthesised by ribosomes

Question 12

Function of Smooth Endoplasmic Reticulum

Answer 12

Synthesises and transports glycerol and lipids
Carries out detoxification of drugs and metabolic byproducts

Question 13

What is Vacuole

Answer 13

A liquid-filled sac, which is the cell sap

Question 14

What is vacuole surrounded by?

Answer 14

Tonoplast membrane

Question 15

Size of vacuoles on young plant cells and matured plant cells?

Answer 15

Small for young,Large for matured

Question 16

What does cell sap contains?

Answer 16

Water,organic acids,sugars,amino acids,enzymes,mineral salts,oxygen,carbon dioxide,metabolic by-products

Question 17

What does cytoplasm consists of

Answer 17

jelly-like medium that contains the components of the suspended cells

Question 18

What does cytoplasm contains?

Answer 18

Organic compounds e.g protein, lipid and carbohydrate and inorganic compound e.g potassium ions

Question 19

Function of cell wall

Answer 19

Maintains the shape and provides mechanical supports to plant cell

Question 20

Function of Chloroplast

Answer 20

Absorbs sunlight and convert it to chemical energy during photosynthesis

Question 21

Similarities of plant cell and animal cells

Answer 21

Both cells are made of nucleus, cytoplasm, plasma membrane, Golgi apparatus, mitochondrion, endoplasmic reticulum and ribosomes

Question 22

How does Amoeba sp. moves?

Answer 22

By extending its pseudopodium/pseudopodia

Question 23

How does Paramecium sp. moves?

Answer 23

Using rhythmic cilia beats

Question 24

How does Amoeba sp. gets food?

Answer 24

Amoeba sp. moves toward food by extends its pseudopodium to traps food particles by phagocytosis

Question 25

How does Paramecium sp. gets food?

Answer 25

Paramecium sp. get its food by using the presence of cilia beat to help transfer food particles into the oral groove

Question 26

How does both Amoeba sp. and Paramecium sp. grow?

Answer 26

By synthesising new cytoplasm

Question 27

How does Amoeba sp. and Paramecium sp. responds to stimuli?

Answer 27

By moving away from the stimuli

Question 28

One process that is present in the respiration of Unicellular Organisms?

Answer 28

Simple Diffusion

Question 29

Explain the process of osmoregulation

Answer 29

Waste are removed by diffusion and water will diffuse in by osmosis into the contractile vacuole until it is filled. The vacuole then expands to the maximum size and contraction occurs,thus water is excreted from time to time.

Question 30

If the conditions is suitable and there is plenty of food,how will Amoeba sp. and Paramecium sp. reproduce?

Answer 30

via asexual reproduction that is binary fission through mitosis

Question 31

If the condition are not suitable,how does Amoeba sp. and Paramecium sp. reproduce?

Answer 31

Amoeba sp. will form spores while Paramecium sp. will undergo conjugation