Biology: Additional and Triple

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Additional Biology Questions
1. Give the main components of the cell and their jobs.
2. Compare animal, plan, bacterial and yeast cells.
3. Describe the tissues (in the stomach.)
4. Give six uses of glucose in our plants.
5. Describe the internal structure of the leaf.
6. How is energy used?
7. Give the uses of nitrate, phosphate, potassium and magnesium.
8. Give the balanced symbol equation for photosynthesis.
9. What changes occur in the body during exercise?
10. Give a definition for anaerobic respiration and oxygen debt.
11. Describe how you would use quadrats and transects.
12. Give three uses of proteins.
13. Give the role, place of production and work of amylase, lipase and protease.
14. Give the place of production and job of bile.
15. Give the uses of enzymes.
16. Describe mitosis and meiosis.
17. Define stem cells and give two pros and cons of their usage.
18. Describe cystic fibrosis and polydactyl.
19. Give four ways of fossil formation and their use.
20. Describe how extinction occurs
21. Describe the process of speciation.

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Additional Biology Answers
1. Nucleus = Controls the activities of the cell
Cytoplasm = Site of most chemical reactions
Cell Membrane = Controls the passage of substances in and out of the cells
Mitochondria = Site of most energy released in respiration
Ribosomes = Site of protein synthesis
Vacuole = Contains cell sap
Chloroplasts = Absorb light energy for photosynthesis
2. Yeast cells have a nucleus, cytoplasm, cell wall and cell membrane.…read more

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The liver produce bile which is stored in the gall bladder before being released into the
small intestine. Bile neutralises acid and emulsifies fats.
16. Gene ­ A small section of DNA which controls a particular characteristic.
Allele ­ Different forms of the same gene, can be dominant or recessive.
DNA ­ Chemical which makes up chromosomes. Has a double helix structure.
17. During mitosis copies of the genetic material are made then the cell divides to form two
genetically identical cells..…read more

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Triple Biology Questions
1. Give the substances present in energy drinks. Explain why.
2. Describe how plants are adapted for exchange
3. Describe the stomata, guard cells and transpiration stream.
4. Describe the location of the lungs.
5. Describe how we inhale and exhale
6. Describe how organ systems are adapted for exchange.
7. Compare an artery, vein and capillary.
8. Describe the structure of the heart.
9. Describe the route blood takes as it travels through the body.
10. Give the use of stents.…read more

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Triple Biology Answers
1. Sports drinks contain sugars to replace sugars used in energy release. They also contain water
and ions to replace the water and ions lost during sweating.
2. The surface area of the roots is increased by root hair. In the leaves the surface area is
increased by the flattened shape and internal air spaces.
3. Transpiration is the movement of water from roots via xylem to the leaves. Water evaporates
via stomata. Guard cells allow carbon dioxide to enter.
4.…read more

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A donor kidney with a tissue type similar to that of the recipient is used and the recipient is
treated with drugs that supress the immune system.
16. Temperature is monitored and controlled by the thermoregulatory centre in the brain. This
has receptor sensitive to the temperature of the blood flowing through the brain and in the
skin sending impulses to the thermoregulatory system giving information about skin temp.…read more


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