Search & Filtering
Create a brief outline of an identification key (dichotomous key) for the differentiation of ALL the Protozoa
1. A scientific method is understood as:
a) A method that has six processes.
b) an empirical method acquiring knowledge.
c) a method of testing the hypothesis and predictions.
d) A method of analyzing data and drawing conclusions.
Compare and contrast the reproduction of perch and shark
Frog lungs are quite small, give a brief explanation for such formation
List several characteristics that eubacteria and archaea have in common and that distinguish them from eukaryotes.
Which of the following terms describes DNA?
a. double-strands
b. double helix
c. double nucleotides
d. Both a and b are correct answers.
e. All of the above are correct answers.
Which of the following choices is a deoxyribonucleotide?
a. Adenosine
b. Cytosine
c. Thymine
d. Guanosine
e. None of the above is a deoxyribonucleotide.
Briefly explain the evolution of microbiology, discuss the scientist contribution, the spontaneous generation
Outline the main concepts of entropy and free energy. [10 marks]
2. Describe photorespiration and how its limitations are imposed on carbon assimilation by
the photosynthetic carbon oxidation cycle in C3 plants. [20 marks]
1. Explain the following concepts in relation to plant movements under the following
headings; definition, purpose and stimulus.
a) Gravitropism
b) Phototropism
c) Thirgmorphogenesis
d) Nyctinasty (20 marks)
2. Explain the role of the following compounds in a plant
a) Cutin
b) Suberin
c) Pyrethroids
d) Anthocyanins (8 marks)
3.
i) Give a definition of a plant hormone (2 marks)
ii) Describe the effects of the following major plant hormones (Auxins, Gibberelins,
Cytokinins, Abscisic acid and Ethylene) on the plant.
