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IBI511S - INTRODUCTION TO GENERAL BIOLOGY - 2ND OPP - JULY 2022 |
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n Am I BI A u n IV ERs ITY
OF SCIEnCE AnDTECHnOLOGY
FACULTYOF HEALTH,APPLIEDSCIENCEAND NATURALRESOURCES
Department of Agriculture and Natural ResourcesSciences
QUALIFICATION: Bachelor of Science in Agriculture
QUALIFICATION CODE: 07BAGA
LEVEL:NQF Level 5
COURSE:Introduction to General Biology
COURSECODE: IBISllS
DATE:July 2022
PAPER:Theory
DURATION: 3 Hours
MARKS: 100
SECONDOPPORTUNITY/SUPPLEMENTARYEXAMINATION QUESTION PAPER
EXAMINER(S): Mr C. L. Akashambatwa
MODERATOR: Mrs. G.L. Theron
THIS QUESTION PAPERCONSISTSOF 3 PAGES
(INCCLUDINGTHIS FRONT PAGE)
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLEMATERIALS
1. Examination paper.
2. Examination script.
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r,
Question 1
1.1. Define Prokaryotes and Eukaryotes.
(4)
1.2. What is crossing over? In which period of meiosis does this event occur and what is its
importance?
(5)
1.3. What are the functions of a nucleus?
(5)
1.4. List seven (7) differences between plant and animal cells in a table format
{14)
[28]
Question 2
2.1. What is a meristem, where are meristems located in plants and what are their functions?
(4)
2.2. Distinguish between monoecious and dioecious flowers and give an example of each (6)
2.3. In the Etosha National park, it is found that some animals occur more abundantly than
others. Which animals would you expect to see more, the Lion or the Oryx? Give a reason for
your answer.
(3)
2.4. Cells are the basic structural units of living organism. Explain what that means
(5)
2.5. Why is a mushroom regarded as fungus rather than a plant?
(3)
[21]
Question 3
3.1. Explain the functions of a vacuole in the cell
(4)
3.2. Draw a transverse section of a dicot leaf and label it correctly.
(10)
3.3. Why is the transfer of energy in an ecosystem referred to as energy flow, not energy
cycling?
(2)
3.4. Distinguish between the functions of mitosis and meiosis.
(8)
3.5. Plants pollinated by wind have various adaptations/features to facilitate that. Provide
the 8 different features as well as the reason for each.
(8)
[32]
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Question 4
4.1 Name two plant classifications under angiosperm group and give four characteristics
under each class
(10)
4.2. Name the three sources of genetic variation and briefly explain each.
(6)
4.3. Name and explain the three classes of RNA.
(3)
[19]
[TOTAL 100]