BTEC APPLIED SCIENCE UNIT 1 BIOLOGY WITH
100% CORRECT AND VERIFIED ANSWERS YEAR
2024/2025
Describe the function of the nucleolus - verified answers-
Produces ribosomes and RNA
Describe the function of the cell wall - verified answers-
Provides rigidity and protection to the cell
Describe the function of the chloroplasts - verified answers-Site
of photosynthesis as they contain chlorophyll
Describe the function of the plasmodesmata - verified answers-
A channel through the cell wall the allows transport of materials
from one cell to another
Describe the function of the amyoplasts - verified answers-
Stores starch and converts starch back into glucose when the
plant needs energy
Describe the function of the vacuole - verified answers-Stores
water and chemicals for cell use. Also maintains turgor of cell
Describe the function of the tonoplasts - verified answers-
Membrane the surrounds the vacuole. Protects the vacuole,
isolates it from harmful substances and controls water flow in
and out of the vacuole
Why are gram positive bacteria more susceptible to antibiotics?
- verified answers-Permeable cell wall whereas gram negative
bacteria has a semi-permeable cell wall
Describe the adaptations found in a palisade cell - verified
answers-Closely packed together
Chloroplasts
, Large vacuole
Explain why the palisade cell has a large amount of
chloroplasts - verified answers-To absorb lots of light for
photosynthesis
Explain why palisade cells are closely packed together -
verified answers-To form a continuous layer in the leaf
Explain why palisade cells have a large vacuole - verified
answers-To maintain turgor (pushes against the cell wall to
maintain rigid shape)
Describe the adaptations of a root hair cell - verified answers-
Root hair shape
Large vacuole
Thin cellulose walls
Explain why root hair cells have an elongated section known as
the root hair - verified answers-Increased surface area for
maximum movement of water into the cell
Explain why root hair cells have a large vacuole - verified
answers-Contains cell sap with low water potential to
encourage water into the cell
Explain why root hair cells have thin cellulose walls - verified
answers-Encourage movement of water and minerals into the
cell. Short distance for osmosis and diffusion
Describe the adaptations of a sperm cell - verified answers-Lots
of mitochondria
Shaped head containing acrosome (with enzymes)
Haploid nucleus
Tail for movement
100% CORRECT AND VERIFIED ANSWERS YEAR
2024/2025
Describe the function of the nucleolus - verified answers-
Produces ribosomes and RNA
Describe the function of the cell wall - verified answers-
Provides rigidity and protection to the cell
Describe the function of the chloroplasts - verified answers-Site
of photosynthesis as they contain chlorophyll
Describe the function of the plasmodesmata - verified answers-
A channel through the cell wall the allows transport of materials
from one cell to another
Describe the function of the amyoplasts - verified answers-
Stores starch and converts starch back into glucose when the
plant needs energy
Describe the function of the vacuole - verified answers-Stores
water and chemicals for cell use. Also maintains turgor of cell
Describe the function of the tonoplasts - verified answers-
Membrane the surrounds the vacuole. Protects the vacuole,
isolates it from harmful substances and controls water flow in
and out of the vacuole
Why are gram positive bacteria more susceptible to antibiotics?
- verified answers-Permeable cell wall whereas gram negative
bacteria has a semi-permeable cell wall
Describe the adaptations found in a palisade cell - verified
answers-Closely packed together
Chloroplasts
, Large vacuole
Explain why the palisade cell has a large amount of
chloroplasts - verified answers-To absorb lots of light for
photosynthesis
Explain why palisade cells are closely packed together -
verified answers-To form a continuous layer in the leaf
Explain why palisade cells have a large vacuole - verified
answers-To maintain turgor (pushes against the cell wall to
maintain rigid shape)
Describe the adaptations of a root hair cell - verified answers-
Root hair shape
Large vacuole
Thin cellulose walls
Explain why root hair cells have an elongated section known as
the root hair - verified answers-Increased surface area for
maximum movement of water into the cell
Explain why root hair cells have a large vacuole - verified
answers-Contains cell sap with low water potential to
encourage water into the cell
Explain why root hair cells have thin cellulose walls - verified
answers-Encourage movement of water and minerals into the
cell. Short distance for osmosis and diffusion
Describe the adaptations of a sperm cell - verified answers-Lots
of mitochondria
Shaped head containing acrosome (with enzymes)
Haploid nucleus
Tail for movement
