BTEC Unit 1 Applied Science Questions And Answers
/2025
Describe the function of the nucleolus
Produces ribosomes and RNA
Describe the function of the cell wall
Provides rigidity and protection to the cell
Describe the function of the chloroplasts
Site of photosynthesis as they contain chlorophyll
Describe the function of the plasmodesmata
A channel through the cell wall the allows transport of materials from one cell to
another
,Describe the function of the amyoplasts
Stores starch and converts starch back into glucose when the plant needs energy
Describe the function of the vacuole
Stores water and chemicals for cell use. Also maintains turgor of cell
Describe the function of the tonoplasts
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?
Permeable cell wall whereas gram negative bacteria has a semi-permeable cell wall
Describe the adaptations found in a palisade cell
Closely packed together
Chloroplasts
Large vacuole
, Explain why the palisade cell has a large amount of chloroplasts
To absorb lots of light for photosynthesis
Explain why palisade cells are closely packed together
To form a continuous layer in the leaf
Explain why palisade cells have a large vacuole
To maintain turgor (pushes against the cell wall to maintain rigid shape)
Describe the adaptations of a root hair cell
Root hair shape
Large vacuole
Thin cellulose walls
Explain why root hair cells have an elongated section known as the root hair
Increased surface area for maximum movement of water into the cell
/2025
Describe the function of the nucleolus
Produces ribosomes and RNA
Describe the function of the cell wall
Provides rigidity and protection to the cell
Describe the function of the chloroplasts
Site of photosynthesis as they contain chlorophyll
Describe the function of the plasmodesmata
A channel through the cell wall the allows transport of materials from one cell to
another
,Describe the function of the amyoplasts
Stores starch and converts starch back into glucose when the plant needs energy
Describe the function of the vacuole
Stores water and chemicals for cell use. Also maintains turgor of cell
Describe the function of the tonoplasts
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?
Permeable cell wall whereas gram negative bacteria has a semi-permeable cell wall
Describe the adaptations found in a palisade cell
Closely packed together
Chloroplasts
Large vacuole
, Explain why the palisade cell has a large amount of chloroplasts
To absorb lots of light for photosynthesis
Explain why palisade cells are closely packed together
To form a continuous layer in the leaf
Explain why palisade cells have a large vacuole
To maintain turgor (pushes against the cell wall to maintain rigid shape)
Describe the adaptations of a root hair cell
Root hair shape
Large vacuole
Thin cellulose walls
Explain why root hair cells have an elongated section known as the root hair
Increased surface area for maximum movement of water into the cell
