Life Processes, Cells and Cell Organisation Flashcards
What are the seven life processes?
MRS GREN (Movement, Respiration, Sensitivity Growth, Reproduction, Excretion, Nutrition)
What does an animal cell have?
A nucleus, a cell membrane, mitochondria, ribosomes and cytoplasm.
What does a plant cell have?
A nucleus, a cell membrane, mitochondria, cytoplasm, a cell wall, a vacuole and chloroplast.
Give 5 examples of specialised cells.
Red blood, muscle, nerve, sperm and egg cells.
How are cells organised?
Organelle, cell, tissue, organ, organ system, organisms
What are the four main parts of a plant?
Flower, stem, leaves and root.
How is a red blood cell adapted to its function?
Carries oxygen around the body.
Has more space.
Contains haemoglobin.
Has no nucleus.
How is a root cell adapted to its function?
Has specialised cells, root hair cells
Has a large surface area which increases the rate of absorption
How is a sperm cell adapted to its function?
Has a tail.
The male sex cell.
Many mitochondria.
How is a flower adapted to its function?
Pollinated by insects or the wind.
How is a nerve cell adapted to its function?
Transmits electrical signals.
Branched connects at each end.
Thin, fatty sheath that surrounds them.
How is a leaves adapted to its function?
Contain openings to allow CO2 into the leaf.
Has a large surface area.
How is an egg cell adapted to its function?
Nucleus has genetic material.
Female sex cell.
Cytoplasm has nutrients.
How is a stem adapted to its function?
Can hold and transport large amounts of water and starch
How is a muscle cell adapted to its function?
Joined to bones.
Make up our muscles.
They never get tired.
