What does the nucleus do?
It controls all the activities of the cell and it contains genes on the chromosomes that carry the instructions for making the proteins needed to build new cells or new organisms.
The place wehere respiration is carried out.
Respiration occurs in the mitochondria, not the nucleus.
What do the plant cells contain that the animal cells do not?
Cell walls, chloroplasts and permanent vacuoles.
Ribosomes, chloroplasta and cells walls.
What is the definition of diffusion?
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration, down the concentration gradient.
Diffusion is the net movement of particles from an area of low concentration to an area of high concentration, up the concentration gradient.
What is the formula for net movement?
paticles moving in-particles moving out
total particles-particles moving out
Red blood cells do not have a nucleus so that there is more space for haemoglobin to be stored. True or false?
A solution is made up of 2 parts. A solute and a solvent. A solvent dissolves in a solute.
What is the difference between a concentrated solvent and a dilute solvent?
A concentrated solvent has little solute dissolved in it and a dilute has a lot.
A concentrated solvent has a lot of solute dissolved in it and a dilute has only a little.
What is osmosis?
A special kind of diffusion invloving water molecules.
The name of the topic in which diffusion is a part of.
