CHAPTER 15- CONTROL AND COORDINATION 🤎 Flashcards

Question 1

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AS LEVEL RECAP- explain three roles of membrane proteins

Question 2

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Describe the features of the endocrine system (with reference to ADH, glucagon and insulin)

Question 3

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Name two types of nervous systems and their organs
Describe the features of the nervous system

Question 4

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Name three types of neurones and state their functions

Question 5

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Label and describe the features of all three types of neurones (sensory, relay and motor neurones)

Question 6

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Explain what myelin and Nodes of Ranvier are in relation to neurones and describe their structure and function (Use labelled diagrams to show your understanding)

Question 7

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Define a reflex arc
-Give some examples of reflex actions

Question 8

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Describe what an action potential is

Question 9

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Define resting potential
-Explain IN DETAIL different ways in which the resting potential is maintained
-State briefly how the resting potential is restored

Question 10

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Describe IN DETAIL the sequence of events that occur during an action potential AND how resting potential is restored during the refractory period
(Use key words in your explanation)

Question 11

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Describe the difference between the response to a weak stimulus and to a strong stimulus (use a graph in your explanation)

Question 12

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Explain IN DETAIL the rapid transmission of an impulse in a myelinated neurone (refer to saltatory conduction in your explanation and use diagrams if necessary)

Question 13

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Define a chemoreceptor
Explain IN DETAIL the sequence of events that occur during an action potential in a chemoreceptor cell in a human taste bud (use keywords and diagrams in your explanation)

Question 14

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Define a synapse
What is the function of a synapse?
Draw and label the structure of a synapse and state the function of some of it’s parts

Question 15

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The mechanism of synaptic transmission consists of four steps. Using a diagram, list and describe each step IN DETAIL using keywords

Question 16

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Describe the ultrastructure of a striated muscle IN DETAIL using drawings and descriptions:
-Structure of a striated muscle
-Parts of the fibres making up a striated muscle (as seen with a light AND electron microscope)
-Structure of thick and thin filaments
(use necessary keywords in your explanation)

Question 17

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Using the sliding filament model, describe the detailed process of muscle contraction (including the role if the T-tubule system and sarcoplasmic reticulum in stimulating contraction in a striated muscle) (use necessary keywords in your explanation)

Question 18

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Explain how energy is provided for muscle contraction

Question 19

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Explain the process of the rapid response of Venus fly traps stimulation of hairs and explain IN DETAIL how the closure of the trap is achieved using necessary keywords

Question 20

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State the roles of three types of plant hormones/ plant growth regulators

Question 21

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Using a diagram, explain the role of auxin in elongation growth by stimulating proton pumping to acidify cell walls IN DETAIL, use necessary key terms in your explanation

Question 22

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Using a diagram, explain the role of gibberellin in the germination of barley and explain IN DETAIL how gibberellins promote growth

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CHAPTER 15- CONTROL AND COORDINATION 🤎 Flashcards

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