biology

Created by

olivia

Cards (114)

name a sub cellular structure that can be found in an animal cell 
ribosomes
are bacteria cells eukaryotic or prokaryotic  
prokaryotic
where do most chemical reactions happen 
cytoplasm
where does photosynthesis happen 
chloroplasts
what does the vacuole store 
cell sap
what is the flagellum 
a long hair like structure that helps the cell move.
what does chromosomal DNA do 
controls what the cell does
what cells are eukaryotic
plant and animal
what does the cell wall do
supports and strengthens the cell
what is the function of a sperm cell
to carry the male DNA to the egg
what does the sperms tail do
helps it swim towards the egg
what does the acrosome do
store enzymes
why does the cell membrane of an egg cell change its structure after fertilisation
to stop more sperm from getting in
what is the function of cytoplasm
contains nutrients which feed the embryo
what do mitochondria do for sperm
release energy
what does haploid mean
cells only have half the number of chromosomes found in a normal body cell
Do eggs and sperm have a diploid or haploid nucleus
haploid
what happens to the embryo when egg and sperm nucleus’s combine 
it has the full number of chromosomes
what happens during prophase
the membrane around the nucleus breaks down
what happens during metaphase
the chromosomes line up at the centre of the cell
what happens during anaphase
each chromosome is spilt in half and the two halves are pulled to opposite ends of the cell
what is the function of the cell membrane
holds the cell together and controls what goes in and out
what is the function of the nucleus
controls what the cell does
what is the function of mitochondria
where most respiration happens
what is cilia
hair like structures which can move substances
what is the function of ribosomes
join amino acids together to make proteins
do light or electron microscopes show more detail
electron microscopes
what is magnification
how many times bigger the image is
what are enzymes
biological catalysts produced by living things
does every enzyme have have an active site
yes
how many substrates can an enzyme work with
one
what is amylase
a type of carbohydrate
what does amylase do
breaks down starch
what does protease do
break down protein into amino acid
what does lipase do
break down lipids into glycerol and fatty acids
what does a higher temperature increase the rate of for enzymes
an enzyme catalysed reaction
what happens if an enzyme gets too hot
some of the bonds holding the enzyme together break
what happens when the bonds of an enzyme break
shape of the active site changes so the substrate won’t fit anymore
what is the optimum temperature
the temperature that the enzyme works best at and is most active at
what happens if ph is too high or low
it affects the bonds holding the active site together so the active site will change shape and denature the enzyme