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BTEC Applied Science Unit 1 Biology newest exam with verified detailed solutions

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BTEC Applied Science Unit 1 Biology newest exam with verified detailed solutions

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BTEC Applied Science
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BTEC applied science









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Institution
BTEC applied science
Course
BTEC applied science

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Uploaded on
May 7, 2025
Number of pages
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Written in
2024/2025
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BTEC Applied Science Unit 1 Biology
newest exam with verified detailed
solutions
Describe the function of the nucleolus - Correct answer ✔Produces ribosomes and RNA
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Describe the function of the cell wall - Correct answer ✔Provides rigidity and protection to the cell
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Describe the function of the chloroplasts - Correct answer ✔Site of photosynthesis as they contain
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chlorophyll



Describe the function of the plasmodesmata - Correct answer ✔A channel through the cell wall the
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allows transport of materials from one cell to another
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Describe the function of the amyoplasts - Correct answer ✔Stores starch and converts starch back
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into glucose when the plant needs energy
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Describe the function of the vacuole - Correct answer ✔Stores water and chemicals for cell use.
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Also maintains turgor of cell
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Describe the function of the tonoplasts - Correct answer ✔Membrane the surrounds the vacuole.
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Protects the vacuole, isolates it from harmful substances and controls water flow in and out of the
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vacuole



Why are gram positive bacteria more susceptible to antibiotics? - Correct answer ✔Permeable cell
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wall whereas gram negative bacteria has a semi-permeable cell wall
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Describe the adaptations found in a palisade cell - Correct answer ✔Closely packed together
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Chloroplasts ||||||




Large vacuole ||||||

, Explain why the palisade cell has a large amount of chloroplasts - Correct answer ✔To absorb lots
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of light for photosynthesis
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Explain why palisade cells are closely packed together - Correct answer ✔To form a continuous
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layer in the leaf |||||| |||||| ||||||




Explain why palisade cells have a large vacuole - Correct answer ✔To maintain turgor (pushes
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against the cell wall to maintain rigid shape) |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Describe the adaptations of a root hair cell - Correct answer ✔Root hair shape |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Large vacuole ||||||




Thin cellulose walls |||||| ||||||




Explain why root hair cells have an elongated section known as the root hair - Correct answer
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✔Increased surface area for maximum movement of water into the cell |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Explain why root hair cells have a large vacuole - Correct answer ✔Contains cell sap with low water
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potential to encourage water into the cell
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Explain why root hair cells have thin cellulose walls - Correct answer ✔Encourage movement of
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water and minerals into the cell. Short distance for osmosis and diffusion
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Describe the adaptations of a sperm cell - Correct answer ✔Lots of mitochondria |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Shaped head containing acrosome (with enzymes) |||||| |||||| |||||| |||||| ||||||




Haploid nucleus ||||||




Tail for movement |||||| ||||||




Explain why a sperm cell has an undulipodium (tail) - Correct answer ✔To allow the sperm to move
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to the egg
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