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Biology Exam Questions with Detailed, (COMPLETE ANSWERS), 2024; 100% TRUSTED Complete, trusted solutions and explanations $7.99   Add to cart
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Biology Exam Questions with Detailed, (COMPLETE ANSWERS), 2024; 100% TRUSTED Complete, trusted solutions and explanations
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Biology Exam Questions with Detailed, (COMPLETE ANSWERS), 2024; 100% TRUSTED Complete, trusted solutions and explanations

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  • November 17, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • biology
  • biology exam questions with detailed complete an

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  • Biology
  • Biology

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Biology
Study online at https://quizlet.com/_ci644q

1. Name all the life • Movement’By the action of muscles in animals, & slow
processes & their growth movements in plants
definitions • Respiration’release energy from their food
• Sensitivity’(Respond to stimuli) Are sensitive to changes
in their surroundings
• Growth’(And develop) Increase in size & complexity,
using materials from their food
• Reproduction’Produce offspring
• Excretion’Get rid of waste products
• Nutrition’Plants make their own food, animals eat other
organisms
• Homeostasis’(Control of the internal environment)
Maintain a steady state inside the body•

2. Cell definition Basic structural unit of living organisms

3. Types of cells: • Unicellular
• Multicellular

4. Unicellular defini- Composed of a single cells
tion

5. Multicellular defi- Composed of many cells
nition

6. Structure of an • Cytoplasm
animal cell • Nucleus
• Ribosome
• Cell membrane
• Mitochondrion

7. Structure of a • Cell wall
plant cell • Cell membrane (inside cell wall)
• Permanent vacuole
• Cytoplasm
• Mitochondria
• Chloroplasts
• Ribosome
• Nucleus



, Biology
Study online at https://quizlet.com/_ci644q
8. What are the cell • Cell wall
parts found in a • Chloroplast
plant cell but not • (Permanent) Sap vacuole
in an animal cell?

9. Name all the cell • Cell membrane (surface)
parts: • Cell wall (plant)
• Ribosome
• Cytoplasm
• Mitochondria
• Chloroplast
• Vacuole

10. Features of a cell • controls what enters & leaves the cell
membrane • it is partially permeable (semi permeable) & there-
fore only allows substances with smaller sizes to pass
through it

11. Features of a cell • they help maintain the shape of a plant cell
part (plant): • they are made of a substance called cellulose that
strengthen them
• are fully permeable

12. Features of a nu- • the brain of a cell
cleus: • controls the activity of the cell
• contains the genetic materials (DNA & RNA)
• determines the type of protein a cell can make

13. Features of ribo- • the place/site where proteins are formed
somes

14. Features of cyto- • jelly-like fluid
plasm • chemical reactions that keep the cell alive occur inside
it

15. Features of mito- • it functions to form energy
chondria

16.



, Biology
Study online at https://quizlet.com/_ci644q
What type of cells • Muscle cells, sperm cells, phloem .etc.
need a lot of mito- • Because they require lots of energy & mitochondria
chondria & why? forms energy

17. Partially-perme- membrane that is permeable to some molecules but not
able definition permeable to others

18. Cellulose defini- polysaccharide of glucose that forms plant cell walls
tion

19. Enzyme defini- a biological catalyst that speeds up the rate of chemical
tion reactions without themselves being used up

20. Name chemical •Chloroplast’Photo-synthesis
reactions that re- •Ribosome’Protein-synthesis
quire enzymes •Mitochondria’Respiration

21. What are en- Proteins
zymes in nature
(naturally)?

22. How enzymes • Each enzyme has a small area (hole) where a substrate
work? attaches called active site
• The substrate enters the active site of an enzyme
• Products formed are released out of the active site
• And a reaction happens

23. Lock & Key model • For a reaction to occur, the substrate must fit into the
active site of an enzyme just like a key fitting perfectly
into a lock
• This, therefore, means that enzymes are specific &
only catalyse certain type of reactions because there are
different shapes of active site

24. Most enzymes "-ase" (suffix)
end with...

25. Catalyse means... to speed up

26.

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