Movement in/out of cells
Diffusion is the net movement of molecules or ions from ......
a high concentration to a lower concentration, as a result of their random movement and kinetic energy.
The test used to determine protein presence
Biuret test
Carbohydrate used to build plant cell walls
Cellulose
A catalyst is .....
Something that alters the rate of a reaction without being used up in the process
arthropod class to which crabs belong
crustaceans
diffuses through partially permeable membranes, including cell membranes, by
osmosis
What is a test for starch
name of substance & colour change
Iodine
Brown/Orange -> Blue Black
Where carbohydrates are made in a green leaf
chloroplasts
The material an enzyme changes is called its
.......
Substrate
A mule is the offspring of a horse and a donkey - why is it infertile
If a mule is infertile it is because horse and doney are of a different species
the movement of particles across a cell membrane, up the concentration gradient, using energy from respiration.
active transport
Building blocks of fats
glycerol and fatty acids
Which type of plant has parallel veins running through its lamina
monocot
proteins are digested to amino acids by
protase
group of cells working together to perform some function
Animal cells burst in pure water and shrink when placed in a concentrated solution. Plant cells do not burst in pure water
Why?
Cell wall
Main chemical elements present in proteins
carbon, hydrogen, oxygen, and nitrogen
The name of the part in the vascular bundle that brings water for photosynthesis
xylem
Catalase is used to catalyse which reaction
Hydrogen peroxide -> water + oxygen
In DNA there are 4 bases A, B, C, G
A bonds with ---
C bonds with ---
A --- T
C ---- G
If there is a high water potential on one side and a low water potential on the other side of a membrane
We say there is a ________ between them
Water potential gradient
Specific region of an enzyme where the substrate binds
Active site
How many molecules of carbon dioxide and water are needed to create glucose through photosynthesis
6 each
The name for the mixture of an enzyme and it's substrate while bonded together is the .....
Enzyme-substrate-complex
Set of features characteristic only of birds
hard-shelled eggs and feathers