Cells And Simple Cell Transport Flashcards
All living things are made up of…
Cells.
Cells are specialized to…
Do their specific functions.
Four cell types(aqa)
Plant, animal, yeast and bacteria.
What feature do you have to cross in order to get into a cell?
Cell membrane.
Three features bacteria,plant and animal cells have in common are…
Cytoplasm.
Chromosomes.
DNA.
Features of a bacteria cell
Cell wall.
Cytoplasm.
DNA.
Flagella.
Features of an animal cell
Cell membrane.
Mitochondria.
Ribosomes.
Nucleus.
Features of a plant cell
Chloroplasts. Sap vacuole. Nucleus. Cytoplasm. Mitochondria. Ribosomes.
Features of a yeast cell
Cell wall.
Nucleus.
Cell membrane.
Red blood cells job is to…
Carry oxygen through the body.
White blood cells job is to…
Strengthen the immune system.
Gamete cells job is to…
Successfully produce fertile offspring.
Palisade leaf cells job is to…
Support the sites of photosynthesis.
Guard cells job is to…
Open and close the stomata in leaves(must allow co2 and o2 in and out)
Substances can move in and out of the cell through the membrane using a method called…
Diffusion.
Define diffusion
The spreading of particles from an area of high concentration, to a lower concentration.
Diffusion occurs spontaneously due to…
The random movement of fluid particles(kinetic energy).
The greater difference in concentration…
The faster the rate of diffusion.
Why does a greater concentration difference mean the rate of diffusion is higher?
There’s a steeper concentration gradient.
Why can amino acids diffuse through a cell membrane but proteins can’t?
Because the amino acids are relatively small molecules and proteins are too large.
How does oxygen, used for respiration, pass through the cell membrane?
Diffusion.
If there’s a difference in concentration, anything dissolved in a solution……diffuse.
CAN diffuse.
