3/22/25, 11:55 BTEC Applied Science Unit 1 Biology |
AM
BTEC APPLIED SCIENCE UNIT 1 BIOLOGY EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (118)
Describe the function of Produces ribosomes and RNA
the nucleolus
Describe the function of Provides rigidity and protection to the cell
the cell wall
Describe the function of Site of photosynthesis as they contain chlorophyll
the chloroplasts
Describe the function of A channel through the cell wall the allows transport of
the plasmodesmata materials from one cell to another
Describe the function of Stores starch and converts starch back into glucose
the amyoplasts when the plant needs energy
Describe the function of Stores water and chemicals for cell use. Also
the vacuole maintains turgor of cell
Describe the function of Membrane the surrounds the vacuole. Protects the
the tonoplasts vacuole, isolates it from harmful substances and
controls water flow in and out of the vacuole
Why are gram positive
Permeable cell wall whereas gram negative bacteria
bacteria more susceptible
has a semi-permeable cell wall
to antibiotics?
Describe the adaptations Closely packed together
found in a palisade cell Chloroplasts
Large vacuole
1/10
, 3/22/25, 11:55 BTEC Applied Science Unit 1 Biology |
AM
Explain why the
To absorb lots of light for photosynthesis
palisade cell has a large
amount of chloroplasts
Explain why palisade cells
To form a continuous layer in the leaf
are closely packed
together
Explain why palisade cells
To maintain turgor (pushes against the cell wall
have a large vacuole
to maintain rigid shape)
Describe the adaptations Root hair shape
of a root hair cell Large vacuole
Thin cellulose walls
Explain why root hair cells
Increased surface area for maximum movement
have an elongated section
of water into the cell
known as the root hair
Explain why root hair
Contains cell sap with low water potential to
cells have a large
encourage water into the cell
vacuole
Encourage movement of water and minerals into the
Explain why root hair
cell. Short distance for osmosis and diffusion
cells have thin cellulose
walls Lots of mitochondria
Shaped head containing acrosome (with enzymes)
Haploid nucleus
Describe the adaptations
Tail for movement
of a sperm cell
To allow the sperm to move to the egg
Explain why a sperm cell
has an undulipodium (tail) To produce the large amounts of energy needed for
movement
Explain why sperm cells
contain large numbers of
mitochondria To push through the protective layer of the egg cell
Explain why sperm cells
have a shaped head To digest the zona pellucida to allow entry into the
egg cell
Explain why sperm cells
contain acrosome in
the head
2/10
AM
BTEC APPLIED SCIENCE UNIT 1 BIOLOGY EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (118)
Describe the function of Produces ribosomes and RNA
the nucleolus
Describe the function of Provides rigidity and protection to the cell
the cell wall
Describe the function of Site of photosynthesis as they contain chlorophyll
the chloroplasts
Describe the function of A channel through the cell wall the allows transport of
the plasmodesmata materials from one cell to another
Describe the function of Stores starch and converts starch back into glucose
the amyoplasts when the plant needs energy
Describe the function of Stores water and chemicals for cell use. Also
the vacuole maintains turgor of cell
Describe the function of Membrane the surrounds the vacuole. Protects the
the tonoplasts vacuole, isolates it from harmful substances and
controls water flow in and out of the vacuole
Why are gram positive
Permeable cell wall whereas gram negative bacteria
bacteria more susceptible
has a semi-permeable cell wall
to antibiotics?
Describe the adaptations Closely packed together
found in a palisade cell Chloroplasts
Large vacuole
1/10
, 3/22/25, 11:55 BTEC Applied Science Unit 1 Biology |
AM
Explain why the
To absorb lots of light for photosynthesis
palisade cell has a large
amount of chloroplasts
Explain why palisade cells
To form a continuous layer in the leaf
are closely packed
together
Explain why palisade cells
To maintain turgor (pushes against the cell wall
have a large vacuole
to maintain rigid shape)
Describe the adaptations Root hair shape
of a root hair cell Large vacuole
Thin cellulose walls
Explain why root hair cells
Increased surface area for maximum movement
have an elongated section
of water into the cell
known as the root hair
Explain why root hair
Contains cell sap with low water potential to
cells have a large
encourage water into the cell
vacuole
Encourage movement of water and minerals into the
Explain why root hair
cell. Short distance for osmosis and diffusion
cells have thin cellulose
walls Lots of mitochondria
Shaped head containing acrosome (with enzymes)
Haploid nucleus
Describe the adaptations
Tail for movement
of a sperm cell
To allow the sperm to move to the egg
Explain why a sperm cell
has an undulipodium (tail) To produce the large amounts of energy needed for
movement
Explain why sperm cells
contain large numbers of
mitochondria To push through the protective layer of the egg cell
Explain why sperm cells
have a shaped head To digest the zona pellucida to allow entry into the
egg cell
Explain why sperm cells
contain acrosome in
the head
2/10
