Part 1: Homeostasis Resubmission Tasks
Please complete the relevant resubmissions tasks as indicated on your assignment feedback sheet. Use only the resources available in your learning pack or on Moodle
a/c3.1
Q1. Produce a table to show the parts of the skin and their role in thermoregulation.
Q2. Explain how the skin can help to respond to a rise in body temperature and bring it back to normal. You will need to explain the role of each part of the skin listed in Q1.
2)
Read the following passage about hormones involved in the regulation of blood glucose levels, then write on the dotted lines the most appropriate word or words to complete the passage.
When blood glucose levels rise above normal …………………………….. is
released from the …………………………….. cells of the islets of Langerhans
in the …………………………… . This lowers the blood glucose levels by
increasing the uptake of glucose into cells and promotes the conversion
of glucose into …………………………….. . Other cells in the islets of Langerhans
secrete …………………………….. which raises the level of blood glucose.
Part 2: Nervous System Resubmission Tasks
a/c2.1
1. Explain how the central nervous system is organised
2. Explain the organisation of the peripheral nervous system
3. Explain the role of the nervous system in thermoregulation.
4. Using a specific example of a reflex action, construct a flow diagram to show the pathway taken by a nerve impulse during a reflex action.
a/c2.3
a) Complete the labelling on the diagram, below:
b) Construct a flow diagram to explain the events at an excitatory synapse between 2 neurones.
(Your flow diagram must explain the events at both presynaptic and post synaptic membranes)
c) Complete the following gap fill
A neuromuscular junction is the junction between a …. Dendrite… neuron and
…Muscle fibre…..The transmitter is always ………………………………………
…………………………………………… When the neurotransmitter arrives at the membrane of the
……………………………………………………………………….., it will respond by contracting.
Bibliography: –
You must give the full references (Harvard System) of all sources from which you have reproduced any figures, diagrams or tables of data and have extracted information. These sources include textbooks, Journals, and Internet Web Sites. Plagiarised work will not be assessed.