AQA A LEVEL Biology Paper 1 COMPLETE GUIDE WITH 100%
RATED 350+ QUESTIONS AND CORRECT ANSWERS| GRADED A+ |
2025 LATEST UPDATED | 2 LATEST VERSIONS
B1 1) What is the difference in magnificaiton in light and electron microscopes? - (CORRECT
ANSWER)Cheap, easy to transport
B1 2) What is the difference in resolution between light and electron microscopes? - (CORRECT
ANSWER)less resolving power, less magnification
B1) 3) Define Magnification - (CORRECT ANSWER)How many times larger something
appears.
B1 4) What is a Micrograph? - (CORRECT ANSWER)Another word for a microscope image.
B1 5) Define resolution - (CORRECT ANSWER)The ability to distinguish between two points.
B1 6) How do you work out Total magnification? - (CORRECT ANSWER)Magnification =
magnification of eyepiece x magnification of objective lens.
B1 7) How do you work out magnification of image? - (CORRECT ANSWER)Magnification =
size of image / size of real object
B1 11) What is the function of the Cell membrane? - (CORRECT ANSWER)Surrounds the cell
and controls the passage of substances into and out of the cell.
B1 12) What is the function of the Cell wall? - (CORRECT ANSWER)Found outside the cell
membrane in plant and bacterial cells, provides support for the cell.
,B1 13) What is the function of the Chloroplast? - (CORRECT ANSWER)Found in plant cells.
Contain chlorophyll that absorbs light for photosynthesis.
B1 14) What is the function of the Cytoplasm? - (CORRECT ANSWER)Where most of the
chemical reactions take place in a cell.
B1 15) What is a Eukaryotic cell? - (CORRECT ANSWER)Type of cell that contains a nucleus
B1 16)What is the function of the Mitochondria? - (CORRECT ANSWER)Where aerobic
respiration takes place.
B1 17)What is the function of the Nucleus? - (CORRECT ANSWER)Contains DNA and
controls cell activities.
B1 18)What is the Plasmid? - (CORRECT ANSWER)Small rings of DNA found in bacterial
cells.
B1 19)What is a Prokaryotic cell? - (CORRECT ANSWER)Cells without a nucleus.
B1 20)What is the function of the Ribosomes? - (CORRECT ANSWER)Where protein synthesis
occurs.
B1 21)What is the function of the Vacuole? - (CORRECT ANSWER)Found in plant cells.
Contain a fluid called cell sap.
B1 22)State three differences between animal and plant cells. - (CORRECT ANSWER)Plant
cells have cell wall, chloroplasts and permanent vacuole.
B1 23)What substances make up plant cell walls? - (CORRECT ANSWER)Cellulose
,B1 24)Some bacteria have an extra layer on top of their cell walls. What is the name of that
layer? - (CORRECT ANSWER)Slime capsule
B1 25)Where does the genetic material of a prokaryotic cell exist? - (CORRECT
ANSWER)Cytoplasm
B1 26)State one organism that is prokaryotic - (CORRECT ANSWER)Bacteria
B1 28)What is the function of the flagella? - (CORRECT ANSWER)To allow cell to swim and
to move around
B1 29)State one difference between animal and bacteria cells? - (CORRECT ANSWER)No cell
wall and plasmid
B1 30)State one similarity between plant and bacteria cell? - (CORRECT ANSWER)Both
contain a cell water but different material.
B1 31) What a difference between prokaryotic and eukaryotic cells? - (CORRECT
ANSWER)Prokaryotic cell the genetic material is not inside the nucleus it is in a single DNA
loop found free in the cyptoplasm.
B1 32)What is 1m in cm? - (CORRECT ANSWER)100 cm
B1 33)What is 1 cm in mm? - (CORRECT ANSWER)10 mm
B1 34)What is 1 mm in micrometres? - (CORRECT ANSWER)1000 micrometres
B1 35)What is 1 micrometre in nanometres? - (CORRECT ANSWER)1000 nm
, B1 36) Put the following in order: micrometre, nanometre, centimetre, millimetre, metre. -
(CORRECT ANSWER)Metre, centimetre, millimetre, micrometre and nanometre
B1 37) What is a specialised cell? - (CORRECT ANSWER)A cell that is specialised for a
particular function (role)
B1 38) What is the function of red blood cells? - (CORRECT ANSWER)To carry oxygen around
the body
B1 39)) How are red blood cells adapted? - (CORRECT ANSWER)Biconcave shape for a bigger
surface area, no nucleus to fit more oxygen in, contains haemoglobin which attaches to oxygen.
B1 40) What is the function of sperm cells? - (CORRECT ANSWER)Carry the male genetic
material to the egg
B1 41) How is the sperm cell adapted for its function? - (CORRECT ANSWER)Tail to swim,
lots of mitochondria for energy, acrosome contains an enzyme to eat away at egg.
B1 42) What is the function of ciliated epithelial cell? - (CORRECT ANSWER)Form lining of
tubes in the lungs to move substances up
B1 43) How are epithelial cells adapted? - (CORRECT ANSWER)Cilia (tiny hairs) to move
mucus up and out of lungs
B1 44) What is the function of nerve cells? - (CORRECT ANSWER)Cells that send electrical
messages to the brain and around the body to respond to the environment.
B1 45) How are nerve cells adapted? - (CORRECT ANSWER)Long, contain myelin sheath to
speed up electrical impulse, dendrites to connect to lots of other nerve cells.
RATED 350+ QUESTIONS AND CORRECT ANSWERS| GRADED A+ |
2025 LATEST UPDATED | 2 LATEST VERSIONS
B1 1) What is the difference in magnificaiton in light and electron microscopes? - (CORRECT
ANSWER)Cheap, easy to transport
B1 2) What is the difference in resolution between light and electron microscopes? - (CORRECT
ANSWER)less resolving power, less magnification
B1) 3) Define Magnification - (CORRECT ANSWER)How many times larger something
appears.
B1 4) What is a Micrograph? - (CORRECT ANSWER)Another word for a microscope image.
B1 5) Define resolution - (CORRECT ANSWER)The ability to distinguish between two points.
B1 6) How do you work out Total magnification? - (CORRECT ANSWER)Magnification =
magnification of eyepiece x magnification of objective lens.
B1 7) How do you work out magnification of image? - (CORRECT ANSWER)Magnification =
size of image / size of real object
B1 11) What is the function of the Cell membrane? - (CORRECT ANSWER)Surrounds the cell
and controls the passage of substances into and out of the cell.
B1 12) What is the function of the Cell wall? - (CORRECT ANSWER)Found outside the cell
membrane in plant and bacterial cells, provides support for the cell.
,B1 13) What is the function of the Chloroplast? - (CORRECT ANSWER)Found in plant cells.
Contain chlorophyll that absorbs light for photosynthesis.
B1 14) What is the function of the Cytoplasm? - (CORRECT ANSWER)Where most of the
chemical reactions take place in a cell.
B1 15) What is a Eukaryotic cell? - (CORRECT ANSWER)Type of cell that contains a nucleus
B1 16)What is the function of the Mitochondria? - (CORRECT ANSWER)Where aerobic
respiration takes place.
B1 17)What is the function of the Nucleus? - (CORRECT ANSWER)Contains DNA and
controls cell activities.
B1 18)What is the Plasmid? - (CORRECT ANSWER)Small rings of DNA found in bacterial
cells.
B1 19)What is a Prokaryotic cell? - (CORRECT ANSWER)Cells without a nucleus.
B1 20)What is the function of the Ribosomes? - (CORRECT ANSWER)Where protein synthesis
occurs.
B1 21)What is the function of the Vacuole? - (CORRECT ANSWER)Found in plant cells.
Contain a fluid called cell sap.
B1 22)State three differences between animal and plant cells. - (CORRECT ANSWER)Plant
cells have cell wall, chloroplasts and permanent vacuole.
B1 23)What substances make up plant cell walls? - (CORRECT ANSWER)Cellulose
,B1 24)Some bacteria have an extra layer on top of their cell walls. What is the name of that
layer? - (CORRECT ANSWER)Slime capsule
B1 25)Where does the genetic material of a prokaryotic cell exist? - (CORRECT
ANSWER)Cytoplasm
B1 26)State one organism that is prokaryotic - (CORRECT ANSWER)Bacteria
B1 28)What is the function of the flagella? - (CORRECT ANSWER)To allow cell to swim and
to move around
B1 29)State one difference between animal and bacteria cells? - (CORRECT ANSWER)No cell
wall and plasmid
B1 30)State one similarity between plant and bacteria cell? - (CORRECT ANSWER)Both
contain a cell water but different material.
B1 31) What a difference between prokaryotic and eukaryotic cells? - (CORRECT
ANSWER)Prokaryotic cell the genetic material is not inside the nucleus it is in a single DNA
loop found free in the cyptoplasm.
B1 32)What is 1m in cm? - (CORRECT ANSWER)100 cm
B1 33)What is 1 cm in mm? - (CORRECT ANSWER)10 mm
B1 34)What is 1 mm in micrometres? - (CORRECT ANSWER)1000 micrometres
B1 35)What is 1 micrometre in nanometres? - (CORRECT ANSWER)1000 nm
, B1 36) Put the following in order: micrometre, nanometre, centimetre, millimetre, metre. -
(CORRECT ANSWER)Metre, centimetre, millimetre, micrometre and nanometre
B1 37) What is a specialised cell? - (CORRECT ANSWER)A cell that is specialised for a
particular function (role)
B1 38) What is the function of red blood cells? - (CORRECT ANSWER)To carry oxygen around
the body
B1 39)) How are red blood cells adapted? - (CORRECT ANSWER)Biconcave shape for a bigger
surface area, no nucleus to fit more oxygen in, contains haemoglobin which attaches to oxygen.
B1 40) What is the function of sperm cells? - (CORRECT ANSWER)Carry the male genetic
material to the egg
B1 41) How is the sperm cell adapted for its function? - (CORRECT ANSWER)Tail to swim,
lots of mitochondria for energy, acrosome contains an enzyme to eat away at egg.
B1 42) What is the function of ciliated epithelial cell? - (CORRECT ANSWER)Form lining of
tubes in the lungs to move substances up
B1 43) How are epithelial cells adapted? - (CORRECT ANSWER)Cilia (tiny hairs) to move
mucus up and out of lungs
B1 44) What is the function of nerve cells? - (CORRECT ANSWER)Cells that send electrical
messages to the brain and around the body to respond to the environment.
B1 45) How are nerve cells adapted? - (CORRECT ANSWER)Long, contain myelin sheath to
speed up electrical impulse, dendrites to connect to lots of other nerve cells.
