Structure of a cell
Contains the DNA
Nucleus
what is the gas produced in respiration
Carbon dioxide
what are proteins broken down into?
amino acids
when does conduction occur
heat transfer through a solid
what does the periodic contain
all the known elements
site of photosynthesis
chloroplasts
what does the diaphragm do when we breath in
contract and flattern
what is the enzyme that breaks down fat
lipase
when does convection occur
heat transfer through a gas or liquid
what is group 1 known as
alkali metals
in an animal cell but not plant
vacuole and chloroplast
how are the alveoli adapted for gas exchange?
good blood supply, thin walls, large SA
liver
how can we reduce heat loss from homes
double glazing
cavity walls
what is group 7 called?
hallogens
function of the cell membrane
controls entry and exit of substances
when does anaerobic respiration occur?
when there is no oxygen
which organ secretes all enzymes
what do we use to measure current
an ammeter
how does the reactivity of group 1 change
get more reactive as you go down the group
function of the vacuole
contains the sap
where does respiration occur?
mitochondria
what is the food test to see if protein is present
biuret test
what is power measured in
watts
what are the rows and columns in the periodic table called
period and rows