AQA A-level Biology|LATEST 2025| WITH QUESTIONS AND CORRECT DETAILED ANSWERS
GRADED A+ GUARANTEED 100 % PASS
Describe eukaryotic cells -CORRECT ANSWER-They are complex cells and include all animal
and plant cells, as well as all algae and fungi cells.
What does it mean if a organism is eukaryotic? -CORRECT ANSWER-It is a multi-cellular
organism that is made up of eukaryotic cells.
What is an organelle? -CORRECT ANSWER-A part of a cell that plays a specific role.
Name the organelles you might find in an animal cell -CORRECT ANSWER-1)Plasma cell
surface membrane
2)Rough/smooth endoplasmic reticulum
3)nucleus (nucleolus)
4)lysosome
5)ribosome
6)Golgi apparatus
7)cytoplasm
8)mitochondrion
Name the organelles you might find in a plant cell -CORRECT ANSWER-1)Plasma cell surface
membrane
2)cellulose wall
3)chloroplast
4)rough/smooth endoplasmic reticulum
,5)mitochondrion
6)Golgi apparatus
7)vacuole
8)cytoplasm
9)nucleus
10) ribosome
How are algal cells similar to plant cells? -CORRECT ANSWER-They have the same organelles.
How are fungal cells different to plant cells? -CORRECT ANSWER-Their cell walls are made of
chitin, not cellulose.
They don't have chloroplasts because they don't need to photosynthesise
Describe the cell surface plasma membrane.
Outline the functions. -CORRECT ANSWER-It is found on the inside of cells that also have a
cell wall (plants), and is mainly made up of lipids and proteins.
It controls the movement of substances in and out of the cell. It also has receptor molecules
on it, to allow it to respond to chemicals like hormones.
Name the components of the nucleus -CORRECT ANSWER-1)nucleolus
2)nuclear envelope
3)nucleoplasm
4)nuclear pores
5)chromatin
Describe the nucleus.
Outline the functions. -CORRECT ANSWER-A large organelle surrounded by a nuclear
envelope which contains many pores. The nucleus contains chromosomes.
, The nucleus controls the cell's activities by controlling the transcription of DNA. The pores
allow substances to move between the nucleus and the cytoplasm. The nucleolus makes
ribosomes.
Describe mitochondrion.
Outline the functions. -CORRECT ANSWER-They are usually oval-shaped and have a double
membrane. The inner membrane is folded to form structures called cristae. Inside is the
matrix, which contains enzymes involved in respiration.
The site of aerobic respiration, where ATP is produced. They are found in large numbers in
cells that are very active and require a lot of energy.
Describe the structure of chloroplasts.
Outline the functions. -CORRECT ANSWER-A small, flattened structure found in plant and
algal cells. It is surrounded by a double membrane, and has membrane inside called
thylakoid membranes. They are stacked up in some parts to form grana. Grana are linked
together by lamellae.
The site where photosynthesis takes place. Some parts happen in the grana, and other parts
happen in the stroma. (thick fluid found in chloroplasts)
Describe the structure of the Golgi apparatus.
Outline the functions. -CORRECT ANSWER-A group of fluid-filled, membrane-bound,
flattened sacs. Vesicles are often seen at the edges of the sacs.
It processes and packages new lipids and proteins. It also makes lysosomes.
Describe the structure of a Golgi vesicle.
Outline the functions. -CORRECT ANSWER-A small fluid-filled sac in the cytoplasm,
surrounded by a membrane, and produced by the Golgi apparatus.
GRADED A+ GUARANTEED 100 % PASS
Describe eukaryotic cells -CORRECT ANSWER-They are complex cells and include all animal
and plant cells, as well as all algae and fungi cells.
What does it mean if a organism is eukaryotic? -CORRECT ANSWER-It is a multi-cellular
organism that is made up of eukaryotic cells.
What is an organelle? -CORRECT ANSWER-A part of a cell that plays a specific role.
Name the organelles you might find in an animal cell -CORRECT ANSWER-1)Plasma cell
surface membrane
2)Rough/smooth endoplasmic reticulum
3)nucleus (nucleolus)
4)lysosome
5)ribosome
6)Golgi apparatus
7)cytoplasm
8)mitochondrion
Name the organelles you might find in a plant cell -CORRECT ANSWER-1)Plasma cell surface
membrane
2)cellulose wall
3)chloroplast
4)rough/smooth endoplasmic reticulum
,5)mitochondrion
6)Golgi apparatus
7)vacuole
8)cytoplasm
9)nucleus
10) ribosome
How are algal cells similar to plant cells? -CORRECT ANSWER-They have the same organelles.
How are fungal cells different to plant cells? -CORRECT ANSWER-Their cell walls are made of
chitin, not cellulose.
They don't have chloroplasts because they don't need to photosynthesise
Describe the cell surface plasma membrane.
Outline the functions. -CORRECT ANSWER-It is found on the inside of cells that also have a
cell wall (plants), and is mainly made up of lipids and proteins.
It controls the movement of substances in and out of the cell. It also has receptor molecules
on it, to allow it to respond to chemicals like hormones.
Name the components of the nucleus -CORRECT ANSWER-1)nucleolus
2)nuclear envelope
3)nucleoplasm
4)nuclear pores
5)chromatin
Describe the nucleus.
Outline the functions. -CORRECT ANSWER-A large organelle surrounded by a nuclear
envelope which contains many pores. The nucleus contains chromosomes.
, The nucleus controls the cell's activities by controlling the transcription of DNA. The pores
allow substances to move between the nucleus and the cytoplasm. The nucleolus makes
ribosomes.
Describe mitochondrion.
Outline the functions. -CORRECT ANSWER-They are usually oval-shaped and have a double
membrane. The inner membrane is folded to form structures called cristae. Inside is the
matrix, which contains enzymes involved in respiration.
The site of aerobic respiration, where ATP is produced. They are found in large numbers in
cells that are very active and require a lot of energy.
Describe the structure of chloroplasts.
Outline the functions. -CORRECT ANSWER-A small, flattened structure found in plant and
algal cells. It is surrounded by a double membrane, and has membrane inside called
thylakoid membranes. They are stacked up in some parts to form grana. Grana are linked
together by lamellae.
The site where photosynthesis takes place. Some parts happen in the grana, and other parts
happen in the stroma. (thick fluid found in chloroplasts)
Describe the structure of the Golgi apparatus.
Outline the functions. -CORRECT ANSWER-A group of fluid-filled, membrane-bound,
flattened sacs. Vesicles are often seen at the edges of the sacs.
It processes and packages new lipids and proteins. It also makes lysosomes.
Describe the structure of a Golgi vesicle.
Outline the functions. -CORRECT ANSWER-A small fluid-filled sac in the cytoplasm,
surrounded by a membrane, and produced by the Golgi apparatus.
