What is a cell?
The basic unit of life and the building block of all living things.
What is an organ?
A group of different tissues that work together to carry out a particular function.
What is an organism?
A complete living thing made up of multiple organ systems working together.
What is the function of a palisade cell?
To carry out photosynthesis using energy from sunlight.
What is a red blood cell?
A blood cell whose function is to carry oxygen around the body.
What is a tissue?
A group of similar cells that work together to perform a particular function.
What is an organ system?
A group of organs that work together to perform a major function in the body.
A complete living thing made up of multiple organ systems working together.
A plant cell with a large surface area and no chloroplasts, adapted to absorb water and minerals from the soil.
What is a sperm cell?
A cell that fertilises an egg cell to make a baby.
What is a muscle cell?
A cell that contracts to help parts of the body move.
What is the function of a palisade cell?
Answer: To carry out photosynthesis using energy from sunlight.
What structure do red blood cells lack?
Answer: A nucleus, leaving more room to carry oxygen.
How does a white blood cell squeeze out of blood vessels to fight pathogens?
Answer: It can change shape
Why do sperm cells contain lots of mitochondria?
Answer: To provide the energy needed for swimming.
What are dendrites?
Answer: The branching parts of a nerve cell that receive signals at either end of the cell.
How is a palisade cell shaped?
Tall and thin, allowing it to pack many chloroplasts near the top of the leaf.
What protein is found in red blood cells?
Answer: Haemoglobin, which binds to oxygen.
What do muscle cells store for energy?
Answer: Glycogen, which can be broken down for use in respiration.
Which organelle do muscle, sperm, and ciliated cells all have lots of?
Answer: Mitochondria, to provide energy.
What is an axon?
Answer: The long, thin part of a nerve cell that carries electrical impulses around the body.
What structure do root hair cells lack?
Answer: Chloroplasts, since they don't carry out photosynthesis underground.
What does the cytoplasm of an egg cell contain?
Answer: Nutrients that nourish the developing embryo.
What is the function of a ciliated epithelial cell?
Answer: To move microorganisms and dust away from the lungs.
What are the key differences between a plant cell and an animal cell?
Answer: Plant cells have a cell wall, a large permanent vacuole, and chloroplasts, while animal cells lack these three structures.
What do white blood cells produce to fight disease-causing pathogens?
Answer: Antibodies and antitoxins.