biology

Use of gibberellins

.promote flowering

.Increase fruit size

Osmosis practical steps

. Cut 5 Potato cylinders of equal size

. Dry potato to remove excess moisture

. Measure initial mass

. Put into sugar solution , cover with cling film , Leave for an hour

. Remove , dry , measure final mass

. Repeat for 4 different concs

. Calculate percentage change in mass

. Plot a graph of conc against change in mass

How do bacteria work

Damage cells and tissues by producing toxins

Uses of auxins

.weed killers

.promoting tissue growth

What type of cell are animal and plant

Eukaryotic

How do viruses work

Damage cells by reproducing inside of them

Use of ethene

Control fruit ripening

Where is lipase produced and what does it do

. Small intestine + pancreas

. Turns lipids into fatty acids + glycerol

Where is protease produced and what does it do

. Produced in stomach + small intestine + pancreas

. Turns protein into amino acid

What type of cell are bacteria

Prokaryotic

What is mitosis

a type of cell division where a single cell divides to produce two genetically identical "daughter" cells