AQA GCSE Biology Paper 1
Practice Test questions
with complete solutions
1. Describe how light intensity affects the rate of photosynthesis.
Light intensity has no effect on photosynthesis.
Higher light intensity decreases the rate of photosynthesis.
Light intensity only affects the respiration rate, not photosynthesis.
Increased light intensity boosts the rate of photosynthesis up to a
certain point, as it provides more energy for the process.
2. If a plant is placed in a dark environment, how would this affect the
photosynthesis equation and the plant's overall health?
Photosynthesis would decrease, leading to reduced glucose
production and potential harm to the plant's health.
Photosynthesis would increase, enhancing glucose production and
improving health.
Photosynthesis would remain unchanged, but the plant would still
thrive.
Photosynthesis would stop, but the plant would survive on stored
energy.
3. Describe the role of phagocytosis in the immune system.
Phagocytosis involves white blood cells engulfing and digesting
pathogens to help eliminate infections.
Phagocytosis is the process of producing antibodies against
pathogens.
Phagocytosis is the replication of white blood cells in response to
,infection.
, Phagocytosis is the release of histamines to trigger inflammation.
4. What is the primary role of the valves in the heart?
Supply oxygen to the body
Prevent backflow of blood
Pump blood to the lungs
Regulate blood pressure
5. If a new treatment for cancer targets the mechanisms of uncontrolled cell
growth, what type of disease is it primarily addressing?
Non-communicable disease
Communicable disease
Genetic disorder
Infectious disease
6. What is a key structural difference between prokaryotic and eukaryotic cells?
They have multiple chromosomes.
They are generally larger than eukaryotic cells.
They lack a nucleus.
They contain membrane-bound organelles.
7. Describe the role of chloroplasts in the process of photosynthesis.
Chloroplasts store genetic information.
Chloroplasts are the organelles where photosynthesis occurs,
converting light energy into chemical energy.
Practice Test questions
with complete solutions
1. Describe how light intensity affects the rate of photosynthesis.
Light intensity has no effect on photosynthesis.
Higher light intensity decreases the rate of photosynthesis.
Light intensity only affects the respiration rate, not photosynthesis.
Increased light intensity boosts the rate of photosynthesis up to a
certain point, as it provides more energy for the process.
2. If a plant is placed in a dark environment, how would this affect the
photosynthesis equation and the plant's overall health?
Photosynthesis would decrease, leading to reduced glucose
production and potential harm to the plant's health.
Photosynthesis would increase, enhancing glucose production and
improving health.
Photosynthesis would remain unchanged, but the plant would still
thrive.
Photosynthesis would stop, but the plant would survive on stored
energy.
3. Describe the role of phagocytosis in the immune system.
Phagocytosis involves white blood cells engulfing and digesting
pathogens to help eliminate infections.
Phagocytosis is the process of producing antibodies against
pathogens.
Phagocytosis is the replication of white blood cells in response to
,infection.
, Phagocytosis is the release of histamines to trigger inflammation.
4. What is the primary role of the valves in the heart?
Supply oxygen to the body
Prevent backflow of blood
Pump blood to the lungs
Regulate blood pressure
5. If a new treatment for cancer targets the mechanisms of uncontrolled cell
growth, what type of disease is it primarily addressing?
Non-communicable disease
Communicable disease
Genetic disorder
Infectious disease
6. What is a key structural difference between prokaryotic and eukaryotic cells?
They have multiple chromosomes.
They are generally larger than eukaryotic cells.
They lack a nucleus.
They contain membrane-bound organelles.
7. Describe the role of chloroplasts in the process of photosynthesis.
Chloroplasts store genetic information.
Chloroplasts are the organelles where photosynthesis occurs,
converting light energy into chemical energy.
