Lower Plants (BOTS2101)
Biological Science - BS
Semester: First Semester
Level: 200
Year: 2013
THE UNIVERSITY OF BAMENDA FACULTY OF SCIENCE
DEPARTMENT OF BIOLOGICAL SCIENCES
FIRST SEMESTER EXAMINATION 2014
COURSE CODE: BOTS2101
TITLE OF COURSE: LOWER PLANTS
ANSWER ALL QUESTIONS TIME ALLOWED: 3 HOURS
Name Matriculation number Major
Part A: Algae and Bacteria
Questions 1 to 10: Write the letter of the one phrase or word that best answers each question or complete each
statement.
1- Which of the following group of algae do not possess flagella
a) Rhodophyta, b) Chromophyta, c) Chlorophyta c) Euglenophyta
2- Pheophyta means :
a) Green plants, b) brown yellow algae, c) red algae, d) blue green algae
3- In which of the following group belong the edible algae call Spirulina
a) Green plants, b) brown yellow algae c) red algae, d) blue green algae
4- Which of the following species of algae is used to produce agar that is largely
A) Spirogyra b) Laminaria, c) Gelidium, d) Prototheca
5- Bacteria lack a true nucleus and membrane-bound organelles; therefore, they are classified as
a) Prokaryotes b) anaerobes, c) aerobes, d. eukaryotes e) Protista
6-Which of the following is not found in all bacteria cell ?
a) cell membrane b) flagella, c) mesosome, d) cell wall
7- Ability to fix atmospheric nitrogen is found in
a) leaves of some crop plants, b) Chlorella (green algae), c) Some marine red algae, d) Some blue green
algae.
8- Concerning bacteria, which of the following sentence deal with transduction?
a) presence of pilus, b) Usage of virus to transfer DNA from one bacterium to another; c) Incorporation
DNA from dead bacteria cell, d) consummation of living organic matter.
9- The algae at the beginning of the food chain are
a) consumers b) decomposers c) producers, d) heterotrophs;
10. Phycology is the study of
a) Fungi b) Phycus, c) fungi, d) algae
11- Blue and red algae possess pigments belonging to the same group of accessory pigments
11a) Give the name of that group of accessory pigments (1 mark);
11b) Give the specified name and the colors of each accessory pigment in red algae and in blue
algae. (2 marks)
12- List and illustrate (without comment) the different types of prothallus in algae. (1x4=4 marks)
14- What is the function of heterocyst? In which group of algae is it found? (1x2 mark).
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15- Using only diagrams represent the following mode of fertilization with one example in each case.
a) Isogam planogamy, b) anisogam planogamy, c) cystogamy, d) trychogamy. (4 marks)
Part B: Fungi and Viruses
SECTION B: Multiple Choice Questions, write just the right letters (10 marks)
1. Mycology is the study of:
(A) Algae (B) Viruses (C) Fungi (D) All of the above
2. The Eumycota is made up of:
(A) 5 classes (B) 4 classes (C) 3 classes (D) 2 classes
3. Fungi differ with plants in that
(A) Cell wall component (B) food reserves (C) Pigments (D) All of the above
4. Necrotrophys means:
(A) living feeders (B) death feeders (C) Parasitic (D) all of the above
5. Fungi that converts the whole mycelium into fruiting bodies
(A) holocarpic (B) Parasitic (C) Eucarpic (D) Facultative
6. Viruses are exceptions to the cell theory, but they have some characteristics of living things, what are
these characteristics?
(A) They are made up of many specialized cells. (B) They contain genetic material (C) they reproduce by
mitosis (D) they contain chlorophyll
7. An example of a plant virus is:
(A) Mumps (B) TMV (C) HIV (D) All of the above
8. Most viruses are classified based based on:
(A) flagella (B) Size (C) shape (D) None of the above
9. Fungi and viruses are generally known as:
(A) Gymnosperms (B) Pteridophytes (C) Thollophytes (D) Spermotophytes
10. Which part of the virus helps in attachment
(A) Protein coat (B) sheath (C) tail fibers (D) Base plate
SECTION B: SHORT QUESTIONS (14 marks)
1. Draw the life cycle of a name zygomycetes (4 marks)
2. Draw an annotated diagram of a virus (5 marks)
3. In a tabular form only compare and contrast the economic importance of fungi and viruses.
Part C. Lichens and Bryophytes
CHOOSE THE MOST APPROPRAITE ANSWER ONLY
1. How do the bryophytes differ from vascular plants:
A. They have true vascular bundles. B. The sporophyte is the dominant and free-living phase of the
life cycle C. The sporophyte is small and dependent on the gametophyte D. None of the above
2. The study of the evolutionary history of organisms is known as?
A. Apomixie. B. Apomorphy. C. Phylogenetics D. Monophyletic
3. Another name for the Mosses gametophyte is ………………?
A. Antheridia. B. Prothallus. C. protonema. D. Archegonia
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4. Why are the three lineages that makeup the non-vascular plants termed monophyletic?
A. They are composed of an ancestor and all of its descendants. B. They are composed of liverworts,
hornworts and mosses C. they are composed of the three lineages and lichens included. D. they consist of
several families
5. A derived character state in the course of evolution of an organism.
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