2024 AQA GCSE COMBINED SCIENCE:
TRILOGY 8464/B/1F Biology Paper 1F Question
Paper + Mark Scheme
, What do all cells have? - CORRECT ANSWERS-Nucleus, Cytoplasm, Cell Membrane,
Mitochondria, Ribosomes
What do only plant and algal cells have? - CORRECT ANSWERS-A Cellulose Cell Wall
(sometimes Chloroplasts and a Vacuole)
What do Eukaryotic Cells have? - CORRECT ANSWERS-Cell Membrane, Cytoplasm,
Genetic Material enclosed in a nucleus,
What are Prokaryotic Cells? - CORRECT ANSWERS-Cytoplasm and a cell membrane
surrounded by a cell wall. Genetic Material is not in a nucleus, but in a single DNA loop.
May also contain plasmids. E.g. Bacteria
What is Diffusion? - CORRECT ANSWERS-Diffusion is the spreading out of particles of
any substance in a solution or gas, resulting in a net movement from an area of higher
concentration to an area of lower concentration.
Give four examples of dissolved substances which move in and out of cells by diffusion
- CORRECT ANSWERS-Glucose, Urea, Oxygen, Carbon Dioxide.
What is Osmosis? - CORRECT ANSWERS-The movement of water from a dilute to a
more concentrated solute solution through a partially permeable membrane.
What is Active Transport? - CORRECT ANSWERS-The movement of substances from
a more dilute solution to a more concentrated solution. This uses energy from food in
respiration.
What is a tissue? - CORRECT ANSWERS-A group of cells with a similar structure and
function
What is an organ? - CORRECT ANSWERS-A collection of tissues performing a specific
function.
What is the Benedict's test for sugars? - CORRECT ANSWERS-They turn blue
Benedict's solution brick red on heating
What is the ethanol test for lipids? - CORRECT ANSWERS-Ethanol will go milky white
in the presence of lipids.
What is the Biuret test for Protein? - CORRECT ANSWERS-Biuret turns from blue to
purple in the presence of proteins.
What do Carbohydrases break down? - CORRECT ANSWERS-Carbohydrates to
simple sugars.
TRILOGY 8464/B/1F Biology Paper 1F Question
Paper + Mark Scheme
, What do all cells have? - CORRECT ANSWERS-Nucleus, Cytoplasm, Cell Membrane,
Mitochondria, Ribosomes
What do only plant and algal cells have? - CORRECT ANSWERS-A Cellulose Cell Wall
(sometimes Chloroplasts and a Vacuole)
What do Eukaryotic Cells have? - CORRECT ANSWERS-Cell Membrane, Cytoplasm,
Genetic Material enclosed in a nucleus,
What are Prokaryotic Cells? - CORRECT ANSWERS-Cytoplasm and a cell membrane
surrounded by a cell wall. Genetic Material is not in a nucleus, but in a single DNA loop.
May also contain plasmids. E.g. Bacteria
What is Diffusion? - CORRECT ANSWERS-Diffusion is the spreading out of particles of
any substance in a solution or gas, resulting in a net movement from an area of higher
concentration to an area of lower concentration.
Give four examples of dissolved substances which move in and out of cells by diffusion
- CORRECT ANSWERS-Glucose, Urea, Oxygen, Carbon Dioxide.
What is Osmosis? - CORRECT ANSWERS-The movement of water from a dilute to a
more concentrated solute solution through a partially permeable membrane.
What is Active Transport? - CORRECT ANSWERS-The movement of substances from
a more dilute solution to a more concentrated solution. This uses energy from food in
respiration.
What is a tissue? - CORRECT ANSWERS-A group of cells with a similar structure and
function
What is an organ? - CORRECT ANSWERS-A collection of tissues performing a specific
function.
What is the Benedict's test for sugars? - CORRECT ANSWERS-They turn blue
Benedict's solution brick red on heating
What is the ethanol test for lipids? - CORRECT ANSWERS-Ethanol will go milky white
in the presence of lipids.
What is the Biuret test for Protein? - CORRECT ANSWERS-Biuret turns from blue to
purple in the presence of proteins.
What do Carbohydrases break down? - CORRECT ANSWERS-Carbohydrates to
simple sugars.
