Sbt2103:Cellular Basis Of Life Question Paper
Sbt2103:Cellular Basis Of Life
Course:Bachelor Of Crop Protection
Institution: Meru University Of Science And Technology question papers
Exam Year:2011
QUESTION ONE – (30 MARKS)
(a) Define reproductive cycle. (1 Mark) (b) Briefly describe the distribution and structure of centrioles. (4 Marks) (c) (i) Mention the characteristic features of the first meiotic division (2 Marks) (ii) Evaluate the significance of meiotic cell division. (3 Marks) (d) Outline the specific molecular composition of a cell membrane. (3 Marks) (e) Describe the central dogma (3 Marks) (f) Explain three basic fundamental properties shared by all cells. (3 Marks) (g) Compare and contrast the structure and function of chloroplasts with those of mitochondria. (4 Marks) (h) Explain how a scientist uses the scientific method to formulate a hypothesis. (2 Marks) (i) Describe the cellular events that occur during the various phases of interphase. (3 Marks) (j) Explain why phospholipids form a bilayer in a watery medium (2 Marks)
QUESTION TWO – (20 MARKS)
Describe the various theories put forward to explain the origin of life. (20 Marks)
QUESTION THREE – (20 MARKS)
Critically examine the differences between prokaryotic and eukaryotic cells. (20 Marks)
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QUESTION FOUR – (20 MARKS)
Write an essay on mitosis and its biological significance. (20 Marks)
QUESTION FIVE – (20 MARKS)
Discuss the distribution, structure and function of nucleus and golgi body. (20 Marks)
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