BTEC Applied Science - Biology EXAM COMBINED SET REVIEWED QUESTIONS AND REVISED CORRECT ANSWERS
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Course
Btec Applied Science
Institution
Btec Applied Science
BTEC Applied Science - Biology
EXAM COMBINED SET REVIEWED
QUESTIONS AND REVISED CORRECT
ANSWERS
1) Describe the function of the nucleolus -
ANSWER
Produces ribosomes and RNA
2) Describe the function of the cell wall -
ANSWER
Provides rigidity and protection to
the cel...
BTEC Applied Science - Biology
EXAM COMBINED SET REVIEWED
QUESTIONS AND REVISED CORRECT
ANSWERS
1) Describe the function of the nucleolus -
ANSWER Produces ribosomes and RNA
2) Describe the function of the cell wall -
ANSWER Provides rigidity and protection to
the cell
3) Describe the function of the chloroplasts -
ANSWER Site of photosynthesis as they
contain chlorophyll
4) Describe the function of the plasmodesmata -
ANSWER A channel through the cell wall the
, allows transport of materials from one cell to
another
5) Describe the function of the amyoplasts -
ANSWER Stores starch and converts starch
back into glucose when the plant needs energy
6) Describe the function of the vacuole - ANSWER
Stores water and chemicals for cell use. Also
maintains turgor of cell
7) Describe the function of the tonoplasts -
ANSWER Membrane the surrounds the
vacuole. Protects the vacuole, isolates it from
harmful substances and controls water flow in
and out of the vacuole
8) Why are gram positive bacteria more
susceptible to antibiotics? - ANSWER
, Permeable cell wall whereas gram negative
bacteria has a semi-permeable cell wall
9) Describe the adaptations found in a palisade
cell - ANSWER Closely packed together
Chloroplasts
Large vacuole
10) Explain why the palisade cell has a large
amount of chloroplasts - ANSWER To
absorb lots of light for photosynthesis
11) Explain why palisade cells are closely
packed together - ANSWER To form a
continuous layer in the leaf
12) Explain why palisade cells have a large
vacuole - ANSWER To maintain turgor
, (pushes against the cell wall to maintain rigid
shape)
13) Describe the adaptations of a root hair cell -
ANSWER Root hair shape
Large vacuole
Thin cellulose walls
14) Explain why root hair cells have an
elongated section known as the root hair -
ANSWER Increased surface area for
maximum movement of water into the cell
15) Explain why root hair cells have a large
vacuole - ANSWER Contains cell sap with
low water potential to encourage water into the
cell
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