National 5 Biology Unit 2

Name the fibre that pulls chromosomes apart to the poles of the cell.

• Pindle fibres

• Cotton fibres

• Equators

• Spindle fibres

A group of similar cells group together to form an...

• organ

• system

• tissue

• government

The hormone that converts glycogen to glucose...

• Insulin

• Glucagon

The hormone that converts glucose to glycogen...

• Glucagon

• Insulin

Cells that have two copies of each chromosome are...

• Haploid

• Diploid

An example of continuous variation would be...

• Hair colour

• Tongue rolling

• Weight

• Hand clasp

Predicted phenotype ratios are not always achieved because...

• Reproduction is a random process

• Fertilisation is a random process

• Sperm cells are slow swimmers

• The ratios are too hard to calculate

Name the section of the leaf where photosynthesis takes place...

• Stomata

• Guard cells

• Mesophyll

• Xylem

The type of plant vessel that is lignified

• Phloem

• Xylem

The process of water moving through the plant and evaporating through stomata...

• Transferration

• Photosynthesis

• Transpiration

• Osmosis