Support - Support and movement 1989 Paper 1 Question 5(b 5...

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Support and movement1989 Paper 1 Question 5(b)1989 Paper 1 Question 5(b)5.For each of the following, state the animal phylum or plant division with which the structure is usually associated and state its function :(b) tube footAns1989 Paper 2 Question 11989 Paper 2 Question 11.(a)What structural components of the stem of a tree are involved in support ? Explain how they are adapted to their functions.(4 marks)(b)Three types of skeletal systems have evolved in the animal kingdom, namely the hydrostatic skeleton, the exoskeleton and the endoskeleton.(i)With a named example in each case, describe the characteristics of each skeletal system and the associated structures that provide for support and movement.(10 marks)(ii)Describe the mechanisms of movement of these animals with respect to the skeletal and muscular systems they possess.(6 marks)Ans
1990 Paper 2 Question 71990 Paper 2 Question 77.(a)Compare the structure and functions of cartilage and bone.(8 marks)(b)Explain why ligaments and tendons are necessary for locomotion in mammals.(4 marks)(c)Compare locomotion in Amoebaand Paramecium.(3 marks)(d)Discuss the need for support in the aquatic and terrestrial environments. Illustrate the corresponding adaptive features using a named aquatic plant and a named terrestrial plant asexamples.(5 marks)Ans1992 Paper 2 Question 31992 Paper 2 Question 33.(a)Briefly explain the following terms:(i)tropic movement(ii)tactic movement(4 marks)(b)What is the functional significance of each of these types of movement ? Illustrate your answer with one example for each type of movement.(4 marks)(c)With reference to a named organism, design an experiment to show whether it exhibits tactic movement.(4 marks)(d)Give a brief account of the different forms of locomotion shown by vertebrates.(8 marks)Ans
1993 Paper 1 Question 31993 Paper 1 Question 33.Compare and contrast the structures and functions of collenchyma and sclerenchyma tissues.(7 marks)Ans1993 Paper 2 Question 41993 Paper 2 Question 44.(a)Give a brief account of the structural and functional arrangements that are required for effecting movement at a joint of a mammal. (5 marks)(b)The initiation of muscular contraction depends on neural input. By means of a flow chart, outline the processes that occur at the neuromuscular junction.(5 marks)(c)(i)Describe with annotated diagrams the fine structure of the muscle component in (a).(ii)Outline the mechanism of muscle contraction.(10 marks)Ans1994 Paper 2 Question 31994 Paper 2 Question 33.(a)(i)What is the function of a joint in a mammal ? Briefly explain how the structure of a synovial joint facilitates its function.(5 marks)(ii)List the different types of movements that can be facilitated by the different joints of the mammalian skeleton. Name an example of joint for each type of movement.(4 marks)(b)What are the functional differences between skeletal and smooth muscles ? Name an example for each type of muscle.(6 marks)(c)Outline how the sympathetic and parasympathetic nervous systems co-ordinate

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