AQA
AQA
COMBINED SCIENCE
Biology 1F Foundation
TRILOGY (9-1) 2021
Paper 1
With full mark
answers and explanation
, 0 1 Figure 1 shows an animal cell.
Figure 1
All living things are made of cells, the smallest units of life, and there are only two main types of cells:
Prokaryotes, which are the primitive, simple cells of bacteria and their bacteria-like cousin's archaea
Eukaryotes, which include the more advanced cells of animals, plants, fungi, protozoans, algae, and
slime & water moulds. Prokaryotic cells are significantly smaller than Eukaryotic cells
0 1
. 1 What is structure A?
[1 mark]
Tick one box.
Cell membrane YES
Cell wall
Chromosome
Cytoplasm
✔ cell membrane which controls the passage of substances in and out of the
cell
0 1
. 2 What is structure B?
[1 mark]
Tick one box.
Chloroplast
Mitochondria
Nucleus YES
Vacuole
, contains genetic material, which controls the
nucleus
activities of the cel
0 1 . 3 Figure 2 shows a sperm cell.
Figure 2
Describe how a sperm cell is adapted to carry out its function .[1 mark]
A sperm cell has a tail so it can swim to an egg
A sperm cell has many mitochondria to release energy to swim
Fertilises an egg cell - female gamete
The head contains genetic information and an enzyme to help penetrate the
egg cell membrane. The middle section is packed with mitochondria for energy.
The tail moves the sperm to the egg.
, 0 1 . 4 Substances can move into and out of cells by three processes.
The diagrams show the concentration of different substances inside and outside a
root hair cell.
How would each substance move into the root hair cell?
[2 marks]
Draw one line from each root hair cell to the correct process.
Active
Diffusion Osmosis
transport
Down a concentration
✓ ✓ ✗
gradient
Against a
✗ ✗ ✓
concentration gradient
Energy needed ✗ ✗ ✓
Dissolved
Substance moved Dissolved solutes Water
solutes
Gases and dissolved Carrier protein
Partially permeable
gases also diffuse needed dissolve
Notes membrane needed
Diffusion in the leaves mineral ions
absorb water from the
from the soil by
soil by osmosis
active transport.
AQA
COMBINED SCIENCE
Biology 1F Foundation
TRILOGY (9-1) 2021
Paper 1
With full mark
answers and explanation
, 0 1 Figure 1 shows an animal cell.
Figure 1
All living things are made of cells, the smallest units of life, and there are only two main types of cells:
Prokaryotes, which are the primitive, simple cells of bacteria and their bacteria-like cousin's archaea
Eukaryotes, which include the more advanced cells of animals, plants, fungi, protozoans, algae, and
slime & water moulds. Prokaryotic cells are significantly smaller than Eukaryotic cells
0 1
. 1 What is structure A?
[1 mark]
Tick one box.
Cell membrane YES
Cell wall
Chromosome
Cytoplasm
✔ cell membrane which controls the passage of substances in and out of the
cell
0 1
. 2 What is structure B?
[1 mark]
Tick one box.
Chloroplast
Mitochondria
Nucleus YES
Vacuole
, contains genetic material, which controls the
nucleus
activities of the cel
0 1 . 3 Figure 2 shows a sperm cell.
Figure 2
Describe how a sperm cell is adapted to carry out its function .[1 mark]
A sperm cell has a tail so it can swim to an egg
A sperm cell has many mitochondria to release energy to swim
Fertilises an egg cell - female gamete
The head contains genetic information and an enzyme to help penetrate the
egg cell membrane. The middle section is packed with mitochondria for energy.
The tail moves the sperm to the egg.
, 0 1 . 4 Substances can move into and out of cells by three processes.
The diagrams show the concentration of different substances inside and outside a
root hair cell.
How would each substance move into the root hair cell?
[2 marks]
Draw one line from each root hair cell to the correct process.
Active
Diffusion Osmosis
transport
Down a concentration
✓ ✓ ✗
gradient
Against a
✗ ✗ ✓
concentration gradient
Energy needed ✗ ✗ ✓
Dissolved
Substance moved Dissolved solutes Water
solutes
Gases and dissolved Carrier protein
Partially permeable
gases also diffuse needed dissolve
Notes membrane needed
Diffusion in the leaves mineral ions
absorb water from the
from the soil by
soil by osmosis
active transport.
