VCE Biology - Unit 3 AOS 2 Revision

The junction between 2 neurons is called the

• dendrite
• axon
• node of Ranvier
• synapse

What is a neurotransmitter?

• fatty covering of the axon
• nerve cell
• chemical messenger
• gap between neurons

What is the name of the chemical signal used by some insects to attract a mate?

• Hormone
• Pheromone
• Neuron
• Plant growth regulator

Plants that grow towards the sunlight is known as

• geotropism
• thermotropism
• phototropism
• thigmotropism

The plant roots grow towards gravity is known as 

• phototropism
• geotropism
• thigmotropism
• thermotropism

Auxins are which of the following?

• contained in an animal cell
• plant hormone responsible for the growth of the plant cell
• plant hormone responsible for the ripening of fruit
• scientific term for growth hormone in our body

Auxin is a growth hormone in plants that are found/made in...

• the tips of the plant shoots and roots
• the middle of the plant
• the leaves
• the seeds

Which is most likely to happen when stomates are open?

• CO2 will leave the leaf
• Guard cells will lose water and become flacid
• transpiration will shut down
• water is released

Which is most likely to happen when stomatas are open?

• CO2 will leave the leaf
• Guard cells will lose water and become flacid
• transpiration will shut down
• water is released

Causes fruits to ripen 

• Ethylene
• Auxin
• Gibberellin
• Cytokinin