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Semester II 2010/2011 Exam - Marine Science BT318: Plant Science in Biotech & Ecology, Exams of Botany and Agronomy

National Center For Biological Sciences Botany and Agronomy

Information about the semester ii examinations for the academic year 2010/2011, specifically for the third science (marine science) module bt318. Details about the exam code, exam duration, discipline, course coordinator, and instructions for the examination. Section a of the examination covers topics such as plant pigmentation, the sensitive plant mimosa pudica, and totipotency. Section b covers hydrological processes and their relationship to vegetation in wetlands.

Typology: Exams

2011/2012

Uploaded on 11/24/2012

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Semester II Examinations 2010/2011

Exam Code(s)

3MR3

Exam(s)

Third Science (Marine Science)

Module Code(s)

3MR3–BT318

Module(s)

BT318: Applications of Plant Science in Biotechnology

and Ecology

Paper No.

Repeat Paper

External Examiner(s)

Professor M. Jones

Internal Examiner(s)

Dr Z.A. Popper

Dr R. Cave

Instructions:

Answer 4 questions, to include at least 2 from Section A

and at least 1 from Section B.

Use a separate answer book for each section.

Duration

3 hours

No. of Pages

Discipline(s)

Botany and Earth & Ocean Science

Course Co-ordinator(s)

Dr D. Stengel

Requirements: None

MCQ

Release to Library: Yes √ No

Handout

Statistical/ Log Tables

Cambridge Tables

Graph Paper

Log Graph Paper

Other Materials

Partial preview of the text

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Semester II Examinations 2010/

Exam Code(s) 3MR Exam(s) Third Science (Marine Science) Module Code(s) 3MR3–BT Module(s) (^) BT318: Applications of Plant Science in Biotechnology and Ecology Paper No. Repeat Paper External Examiner(s) Professor M. Jones Internal Examiner(s) Dr Z.A. Popper Dr R. Cave

Instructions: Answer 4 questions, to include at least 2 from Section A

and at least 1 from Section B. Use a separate answer book for each section. Duration (^) 3 hours No. of Pages 2 Discipline(s) Botany and Earth & Ocean Science Course Co-ordinator(s) Dr D. Stengel Requirements : None MCQ Release to Library: Yes √ No Handout Statistical/ Log Tables Cambridge Tables Graph Paper Log Graph Paper Other Materials

Section A

Red-purple pigmentation in flowering plants may be caused by the presence of either betalain or anthocyanin pigments. Describe which plant taxa each group of pigments occurs in, and discuss the relative disadvantages of the betalains.
The common name of Mimosa pudica is the sensitive plant. Describe what it is sensitive to, how its sensitivity is manifested (i.e. how can we see that it is responding), and the mechanism that brings about the response.
The moss Ceratodon purpureus or fire moss shows spiral growth patterns when grown in space whereas when grown on Earth the moss grows away from gravity and towards light. Discuss the mechanism by which the roots of vascular plants sense and grow towards the pull of gravity.
Describe what is meant by totipotency and how it can be induced under laboratory conditions. Giving examples discuss its importance in plant

agriculture and conservation.

Section B

Draw a diagram showing the main linkages between hydrological and biological processes operating in a drainage basin. Explain the various ways by which riparian vegetation can directly influence the hydrological cycle.
Explain what is meant by a hydrological measure and describe 3 examples of such measures used in the Everglades National Park. Discuss how hydrological dynamics influence how vegetation is distributed in wetlands such as the Florida Everglades.