Coordination questions | form five Biology

Figure 2 below shows a certain stage of synaptic transmission

1. Identify each of the parts labeled T, U, V, W, X and Z
2. What is the state of the region shown by letter Y?
3. State the role played by structure labeled U and W respectively

2. Why do some impulses arriving at the pre-synaptic membrane fail to produce an action potential in the post synaptic neuron whereas several impulses arriving in succession can do so?

Answer / Solution

UNSOLVED

Describe the mode of action of neurotransmitter at a synapse, including how it is stored and destroyed.

Answer / Solution

UNSOLVED

Distinguish between the following 

1. Nervous and hormonal cordination. Give four points
2. Positive and negative feedback of body temperature regulation process. Give two points

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UNSOLVED

Examine four properties of a hormone which enables it to accomplish its functions.

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UNSOLVED

1. What is phytohormone?
2. Outline three roles of each of the following phytohormones.

1. Auxins
2. Gibberellins
3. Cytokinins

Answer / Solution

UNSOLVED