Living or Non-Living
What are the building blocks of living things?
Cells
where photosynthesis happens
Chloroplast
the movement of water across a semipermeable membrane e.g. the cell membrane.
Osmosis
What cells fight germs?
WBC
What is the main difference between prokaryotic and eukaryotic cells?
Describe the cell membrane of cells in two words
selectively permeable
Found only in animal cells
Lysosomes
If fluid outside the cell has a higher concentration of solute than inside the cell, it is said to be
HYPERTONIC
What structure makes the sperm cells swim?
Why does the small intestine have villi(hair-like structures) surrounding its wall?
for bigger surface area for more absorption of nutrients
Living organisms share a number of characteristics that are unique.What are they?
Movement - all living things move
Respiration - all living things create energy from food
Sensitivity - all living things detect changes to their surroundings
Growth - all living things grow
Reproduction - all living things reproduce and multiply
Excretion - all living things excrete wastes
Nutrition - all living things require nutrition
Place where energy is generated
Mitochondria
If Water moves into the cell causing the cell to swell.
HYPOTONIC
What do Red blood cells do?
carry oxygen from lungs to all body parts
What is the life span of nerve cell
90 years
What are the three parts of cell theory?
Cells are the fundamental unit of organisation of life
All living things are made up of one or more cells
All cells come from other cells
This is a storage sac in the centre of the cell, this swells to give the cell its shapes.
Vacuole
Through what system does water enter the body?
The length the the RBCs live is
120 days
All the proteins needed for the cell are synthesised (made) here. Protein synthesis
Ribosomes
Levels of organization of living things
cell, tissue, organ, organ system, organsim
Name three organelles that are found only in plant cells
Vacuole, chloroplasts, and cell wall
In which organ does the movement of water is driven by unequal concentrations of solute (e.g. sugars or salt) on either side of the membrane?
Small intestine
The length that the liver cells live is
18 months
What do we allocate the independent variable on the axes of a graph?
x-axis