NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER/NOVEMBER 2016 EXAMINATION

COURSE CODE:                  BIO 310

COURSE TITLE:                   PROTOZOOLOGY

TIME ALLOWED:               2 HOURS

INSTRUCTION: ANSWER QUESTION ONE (COMPULSORY) AND ANY OTHER THREE QUESTIONS

1a           Explain the process of replication in Apicomplexan parasite        10 marks

b.            Outline five general characteristics of the phylum Apicomplexa  10 marks

c              Mention two apicomplexan parasites that are of medical importance    2 marks

d             Mention six organelles found in the structure of protozoans  3 marks

2a           Name five species of Entamoeba that infects man and their location in the body of man or of other vertebrates    5 marks

bi.           State the major parasite responsible for amebic dysentery   1 mark

ii.             What are the acute symptoms of amebic dysentery? 1 mark

iii.            What are the treatments for amebic dysentery?    1 mark

c.             Name the disease caused by Giardia; its symptoms, pathology and treatment                                    7 marks

3a           Briefly describe the epidemiology, morphology and the life cycle of Trichomonas vaginalis            9 marks

b             Mention the disease caused by Trichomonas vaginalis  2 marks

c              What are the symptoms and treatments of the disease caused by Trichomonas vaginalis?            4 marks

4a           Name five blood protozoa that are of major biological/medical significance  5 marks

b             Outline the morphology and life cycle of a trypanosome  10 marks

5a           Describe the characteristics of the following Plasmodium species:

1. Plasmodium falciparum      5 marks
2. Plasmodium vivax     5 marks

b             State five characteristics of Mosquito that makes it an efficient vector of human malaria parasite            5 marks

6a           Mention one disease caused by a Babesia parasite   1 mark

b             Outline the symptoms, treatment and control of this disease  6 marks

c              Describe the life cycle of a toxoplasma    8 marks