GCSE AQA Biology Higher 369 CORRECTLY
ANSWERED QUESTIONS LATEST UPDATE
1). Are animal cells eukaryotic or prokaryotic?
Ans: Eukaryotic
2). Are plant cells eukaryotic or prokaryotic?
Ans: Eukaryotic
3). Are bacteria cells prokaryotic or eukaryotic?
Ans: Prokaryotic
4). Are prokaryotic cells much bigger or smaller than eukaryotic?
Ans: much smaller
5). Parts of a eukaryotic cell
Ans: cell membrane, cytoplasm, nucleus
6). Parts of a prokaryotic cell
Ans: cell wall
dna loop
cell membrane
cytoplasm
plasmids
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, 7). Give 5 sub cellular structures that are found in both animal and plant cells?
Ans: -nucleus
-cytoplasm
-cell membrane
-ribosomes
-mitochondria
8). Give 3 sub cellular structures that are found in plant cells but not in animal plants?
Ans: -cell wall
-chloroplasts
-permanent vacuole
9). What the function of the nucleus ?
Ans: contains genetic material
10). Function of cell membrane
Ans: regulates what enters and leaves the cell
11). Function of mitochondria
Ans: cellular respiration
12). Function of chloroplast
Ans: Contains chlorophyll which absorbs light energy for photosyntheis
13). Cell wall function?
Ans: provides support and protection
14). Function of plasmids in bacteria cell?
Ans: contains extra genetic material that can help the bacteria cell survive
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, 15). What are plant cell walls made of?
Ans: cellulose
16). What is a plant cells permanent vacuole filled will?
Ans: cell sap
17). Give 2 differences between electron microscopes and light microscopes?
Ans: electron microscopes have a much higher magnification and a much higher
resolution than light microscopes
18). What formula is used to calculate magnification of an image?
Ans: magnification = imagine size /real size
19). Give a brief method for using a light microscope to look at a prepared slide
Ans: USING A LIGHT MICROSCOPE TO LOOK AT A PREPARED SLIDE
1)put the slide on the stage
2)select the lowest power lens
3)use the coarse adjustment knob to roughly focus the slide
4)use the fine adjustment(FA)knob to clearly focus the slide
5)switch to a higher power lens to increase magnification and refocus with the FA knob
20). Give 3 things to remember when drawing cells observed through a light microscope ?
Ans: -use a pencil
-label the main structures
-include the magnification used
21). What happens when cells differentiate?
Ans: when cells differentiate they develop different sub-cellular structures that make
them carry out certain functions
22). How are animal cells different to plant cells in their ability to differentiate?
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, Ans: most animal cells differentiate early in development and can't differentiate again
many plant cells can differentiate whenever they need to
23). Give 3 ways that a sperm cell is specialised to do its job
Ans: FUNCTION:to get DNA into egg cell
-tail for swimming
-lots of mitochondria to provide energy
-enzymes in head to digest egg cell membrane
24). Give 2 ways that a nerve cell is specialised to do its job
Ans: FUNCTION:carries messages around the body at high speed
-fatty sheath speeds up message transport
-long so it can carry messages over a distance
25). How is a plant root cell specialised to do its job?
Ans: FUNCTION:helps a plant absorb water and minerals from soil.
-a long and thin extension gives a larger surface area for absorption
26). Give 2 ways that muscle cells are specialised to do their jobs?
Ans: FUNCTION:creates movement by contracting and relaxing
-long protein strands that can slide over each other ti shorten/lengthen the cell
-lots of mitochondria to generate energy
27). How are xylem cells specialised?
Ans: FUNCTION:Xylem cells form tubes that transport ester and minerals through the
plant.
*they're dead cells with holes at either end-water and minerals can just flow right through
them
28). How are phloem cells specialised?
Ans: FUNCTION:transport dissolved sugars in a plant.
-few sub cellular structures so sugars flow through easily
-pores in end walls to let sugars through
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ANSWERED QUESTIONS LATEST UPDATE
1). Are animal cells eukaryotic or prokaryotic?
Ans: Eukaryotic
2). Are plant cells eukaryotic or prokaryotic?
Ans: Eukaryotic
3). Are bacteria cells prokaryotic or eukaryotic?
Ans: Prokaryotic
4). Are prokaryotic cells much bigger or smaller than eukaryotic?
Ans: much smaller
5). Parts of a eukaryotic cell
Ans: cell membrane, cytoplasm, nucleus
6). Parts of a prokaryotic cell
Ans: cell wall
dna loop
cell membrane
cytoplasm
plasmids
PaperStoc.com Page 1 of 48
, 7). Give 5 sub cellular structures that are found in both animal and plant cells?
Ans: -nucleus
-cytoplasm
-cell membrane
-ribosomes
-mitochondria
8). Give 3 sub cellular structures that are found in plant cells but not in animal plants?
Ans: -cell wall
-chloroplasts
-permanent vacuole
9). What the function of the nucleus ?
Ans: contains genetic material
10). Function of cell membrane
Ans: regulates what enters and leaves the cell
11). Function of mitochondria
Ans: cellular respiration
12). Function of chloroplast
Ans: Contains chlorophyll which absorbs light energy for photosyntheis
13). Cell wall function?
Ans: provides support and protection
14). Function of plasmids in bacteria cell?
Ans: contains extra genetic material that can help the bacteria cell survive
PaperStoc.com Page 2 of 48
, 15). What are plant cell walls made of?
Ans: cellulose
16). What is a plant cells permanent vacuole filled will?
Ans: cell sap
17). Give 2 differences between electron microscopes and light microscopes?
Ans: electron microscopes have a much higher magnification and a much higher
resolution than light microscopes
18). What formula is used to calculate magnification of an image?
Ans: magnification = imagine size /real size
19). Give a brief method for using a light microscope to look at a prepared slide
Ans: USING A LIGHT MICROSCOPE TO LOOK AT A PREPARED SLIDE
1)put the slide on the stage
2)select the lowest power lens
3)use the coarse adjustment knob to roughly focus the slide
4)use the fine adjustment(FA)knob to clearly focus the slide
5)switch to a higher power lens to increase magnification and refocus with the FA knob
20). Give 3 things to remember when drawing cells observed through a light microscope ?
Ans: -use a pencil
-label the main structures
-include the magnification used
21). What happens when cells differentiate?
Ans: when cells differentiate they develop different sub-cellular structures that make
them carry out certain functions
22). How are animal cells different to plant cells in their ability to differentiate?
PaperStoc.com Page 3 of 48
, Ans: most animal cells differentiate early in development and can't differentiate again
many plant cells can differentiate whenever they need to
23). Give 3 ways that a sperm cell is specialised to do its job
Ans: FUNCTION:to get DNA into egg cell
-tail for swimming
-lots of mitochondria to provide energy
-enzymes in head to digest egg cell membrane
24). Give 2 ways that a nerve cell is specialised to do its job
Ans: FUNCTION:carries messages around the body at high speed
-fatty sheath speeds up message transport
-long so it can carry messages over a distance
25). How is a plant root cell specialised to do its job?
Ans: FUNCTION:helps a plant absorb water and minerals from soil.
-a long and thin extension gives a larger surface area for absorption
26). Give 2 ways that muscle cells are specialised to do their jobs?
Ans: FUNCTION:creates movement by contracting and relaxing
-long protein strands that can slide over each other ti shorten/lengthen the cell
-lots of mitochondria to generate energy
27). How are xylem cells specialised?
Ans: FUNCTION:Xylem cells form tubes that transport ester and minerals through the
plant.
*they're dead cells with holes at either end-water and minerals can just flow right through
them
28). How are phloem cells specialised?
Ans: FUNCTION:transport dissolved sugars in a plant.
-few sub cellular structures so sugars flow through easily
-pores in end walls to let sugars through
PaperStoc.com Page 4 of 48
