AQA AS BIOLOGY PAPER 1 PRACTICE EXAM
2026 QUESTIONS WITH ACCURATE ANSWERS
◉ Sperm cells. Answer: It has a long tail and a streamlined head to
help it swim. There are a lot of mitochondria in the cell to provide
the energy needed. It also carries enzymes in its head to digest
through the egg cell membrane.
◉ light. Answer: energy source for photosynthesis
◉ aorta. Answer: the artery that leaves the heart from the left
ventricle and carries oxygenated blood to the body
◉ arteries. Answer: blood vessels that carry blood away from the
heart. They usually carry oxygenated blood and have a pulse
◉ atria. Answer: the upper chambers of the heart
◉ capillaries. Answer: the smallest blood vessels. They run between
individual cells and have a wall that is only one cell thick
◉ coronary arteries. Answer: the blood vessels that supply
oxygenated blood to the heart muscle
,◉ double circulatory system. Answer: the circulation of blood from
the heart to the lungs is separate from the circulation of blood from
the heart to the rest of the body
◉ epidermal. Answer: the name given to cells that make up the
epidermis or outer layer of an organism
◉ guard cells. Answer: surround the stomata in the leaves of plants
and control their opening and closing
◉ haemoglobin. Answer: the red pigment that carries oxygen
around the body in the red blood cells
◉ palisade mesophyll. Answer: the upper layer of the mesophyll
tissue in plant leaves made up of closely packed cells that contain
many chloroplasts for photosynthesis
◉ phloem. Answer: the living transport tissue in plants that carries
dissolved food (sugars) around the plant
◉ plasma. Answer: the clear yellow-liquid part of the blood that
carries dissolved substances and blood cells around the body
, ◉ platelets. Answer: fragments of cells in the blood that play a vital
role in the clotting mechanism of the blood
◉ pulmonary artery. Answer: the large blood vessel that takes
deoxygenated blood from the right ventricle of the heart to the lungs
◉ pulmonary vein. Answer: the large blood vessel that carries
oxygenated blood from the lungs back to the left atrium of the heart
◉ red blood cells. Answer: biconcave cells that contain the red
pigment haemoglobin and carry oxygen around the body in the
blood
◉ spongy mesophyll. Answer: the lower layer of mesophyll tissue in
plant leaves that contains some chloroplasts and many large air
spaces to give a big surface area for the exchange of gases
◉ stent. Answer: a metal mesh placed in a blocked or partially
blocked artery. They are used to open up the blood vessel by the
inflation of a tiny balloon
◉ translocation. Answer: the movement of sugars from the leaves to
the rest of the plant through the phloem
2026 QUESTIONS WITH ACCURATE ANSWERS
◉ Sperm cells. Answer: It has a long tail and a streamlined head to
help it swim. There are a lot of mitochondria in the cell to provide
the energy needed. It also carries enzymes in its head to digest
through the egg cell membrane.
◉ light. Answer: energy source for photosynthesis
◉ aorta. Answer: the artery that leaves the heart from the left
ventricle and carries oxygenated blood to the body
◉ arteries. Answer: blood vessels that carry blood away from the
heart. They usually carry oxygenated blood and have a pulse
◉ atria. Answer: the upper chambers of the heart
◉ capillaries. Answer: the smallest blood vessels. They run between
individual cells and have a wall that is only one cell thick
◉ coronary arteries. Answer: the blood vessels that supply
oxygenated blood to the heart muscle
,◉ double circulatory system. Answer: the circulation of blood from
the heart to the lungs is separate from the circulation of blood from
the heart to the rest of the body
◉ epidermal. Answer: the name given to cells that make up the
epidermis or outer layer of an organism
◉ guard cells. Answer: surround the stomata in the leaves of plants
and control their opening and closing
◉ haemoglobin. Answer: the red pigment that carries oxygen
around the body in the red blood cells
◉ palisade mesophyll. Answer: the upper layer of the mesophyll
tissue in plant leaves made up of closely packed cells that contain
many chloroplasts for photosynthesis
◉ phloem. Answer: the living transport tissue in plants that carries
dissolved food (sugars) around the plant
◉ plasma. Answer: the clear yellow-liquid part of the blood that
carries dissolved substances and blood cells around the body
, ◉ platelets. Answer: fragments of cells in the blood that play a vital
role in the clotting mechanism of the blood
◉ pulmonary artery. Answer: the large blood vessel that takes
deoxygenated blood from the right ventricle of the heart to the lungs
◉ pulmonary vein. Answer: the large blood vessel that carries
oxygenated blood from the lungs back to the left atrium of the heart
◉ red blood cells. Answer: biconcave cells that contain the red
pigment haemoglobin and carry oxygen around the body in the
blood
◉ spongy mesophyll. Answer: the lower layer of mesophyll tissue in
plant leaves that contains some chloroplasts and many large air
spaces to give a big surface area for the exchange of gases
◉ stent. Answer: a metal mesh placed in a blocked or partially
blocked artery. They are used to open up the blood vessel by the
inflation of a tiny balloon
◉ translocation. Answer: the movement of sugars from the leaves to
the rest of the plant through the phloem
