Living Things And Cells Flashcards
Biology
Is the study of living things
Organism
Living thing
MRSFERG
M movement
R respiration
S sensitivity
F Feeding
E excretion
R reproduction
G growth
Movements
Animals can move from place to place.
Plants do not move, they move when they grow or when a flower opens and closes its petals.
Respiration
Respiration is the way living things get energy. They take in oxygen and mix it with food to get energy.
Sensitivity
Sensitivity is the ability to react to changes in the environment.
Animals will run away from danger, a plant will grow towards light.
Feeding
Animals do not make their own food.
They get their food by eating plants and other animals. Plants make their own food.
Photosynthesis
The way in which plants make their food is called photosynthesis.
To make food they need a green dye called chlorophyll. This is why plants are green.
Excretion
Excretion is the removal of waste made in the body, from the body. Animals excrete carbon dioxide, water, urea and salts.
Reproduction
Reproduction is being able to make new individuals of the same kind. E.g. babies, new plants, puppies.
Growth
Growth results from cell division.
Cell membrane
Very thin layer that surrounds the cell. Holds cell contents in place and controls what passes into and out of the cell.
Nucleus
Nucleus is normally round. It acts as the control centre of the cell. It’s has the DNA.
Cytoplasm
The watery liquid found between the nucleus and the cell membrane.
Mitochondria
Supply energy to the cell.