microscopes /cells Flashcards
what is the function of the focus knob?
to have a better view of the object
what does x10 mean on a lens?
the lens is magnified 10 x
give one function of ribosomes
make protein
give one function of chloroplasts
where photosynthesis occurs
how have ciliated cells adapted to their functions
the cilia helps push the eggs closer to the uterus and they are close together to make it easier for the egg to travel
why does a sperm cell have lots of mitochondria between the head and flagellum
mitochondria provides energy, this gives the sperm cell lots of energy to travel to the egg
state two differences between an animal cell and bacterium
bacterium cells have no nucleus
and bacterium have flagellum
give one similarity between a plant cell and bacterium
they both have cytoplasm
in what direction do the sugar molecules move
they move closer to the cells that line the small intestine, this is caused by diffusion the sugar molecules move from an area of high concentration to an area of low concentration
explain how the structure is adapted to gas exchange
the structure has thin walls because this allows the gasses to travel a shorter distance
diffusion?
diffusion?
