GHSBIOLOGY SENIOR 1

AUG 2012

TIME: ……………………………………………………………………………………………

NAME: …………………………………………………………………………………………..

Answer all questions in the space provided.

SECTION A

1. / 6. / 11. / 16.
2. / 7. / 12. / 17.
3. / 8. / 13. / 18.
4. / 9. / 14. / 19.
5. / 10. / 15. / 20.
  1. Which of the following parts of a cell can be used to sort out plants from fungi.
  1. Cellulose cell wall
  2. Cytoplasm
  3. Nucleus
  4. Vacuole
  1. What is a species?
  1. Living organisms in the same environment.
  2. A population of many classes of organisms.
  3. A group of organisms that breed together and produce fertile offspring.
  4. A population of organisms that depend on each other.
  1. The first step in identifying an organism is to assign it to a
  1. Class
  2. Family
  3. Kingdom
  4. Species
  1. Which of the following scientists is involved in the study of taxonomy?
  1. Darwin
  2. Linnaeus
  3. Morgan
  4. Lamarch
  1. Which two of the following are used in naming organisms.
  1. Classes and species
  2. Class and order
  3. Family and kingdom
  4. Genus and species
  1. Which one of the following protozoa has cilia.
  1. Paramecium
  2. Englena
  3. Amoeba
  4. Plasmodium
  1. Which one of the following parts of spirogyra are surrounded by starch grains;
  1. Chloroplast
  2. Cell wall
  3. Paranoid
  4. Vacuole
  1. Which one of the following organisms does not belong to phylum protoctista;
  1. Bacteria
  2. Trypanosomes
  3. Amoeba
  4. Paramecium
  1. To which one of the following genera does a housefly belong;
  1. Lumbricus
  2. Homo
  3. Periplenata
  4. Musca
  1. Which one of the following organisms is a multicellular
  1. Englena
  2. Paramecium
  3. Amoeba
  4. Hydra
  1. Which one of the following substances makes up the cell wall of fungi;
  1. Cuticle
  2. Cellulose
  3. Calcium
  4. Chitin
  1. Rhizopus reproduces asexually by;
  1. Binary fusion
  2. Fragmentation
  3. Sporulation
  4. Budding
  1. The mode of nutrition used by rhizopus is;
  1. Heteroprophic
  2. Parasitism
  3. Saprophytic
  4. Autotrophic
  1. Bacteria cells differ from plant and animal cells because they;
  1. Can undergo binary fission
  2. Lack chlorophyll
  3. Lack a nuclear membrane
  4. Lack a cell membrane
  1. Which one of the following is an economic importance of fungi;
  1. Involved in spoilage of meat.
  2. Cause diseases in animals only.
  3. Fix atmospheric nitrogen to the soil.
  4. Cause diseases in both plants and animals.
  1. In classification of living things, the immediate subdivision of a class is.
  1. Family
  2. Order
  3. Phyhum
  4. Genus
  1. To which one of the following texa contains the smallest number of organism;
  1. Kingdom
  2. Class
  3. Species
  4. Family
  1. Which one of the following organisms causes HIV
  1. Bacteria
  2. Fungi
  3. Virus
  4. Trypanosomes
  1. Which one of the following organisms does not multiply outside a living cell.
  1. Bacterium
  2. Fungus
  3. Virus
  4. Protozoan
  1. Which one of the following unicellular organisms has two nuclei
  1. Spirogyra
  2. Amoeba
  3. Paramecium
  4. Euglena

SECTION B:

The diagram below shows a unicellular

Organism.

A

D

E

B

C F

a) i) Name the parts labeled A – F on the diagram.

ii) State the functions of structure:

A:…………………………………………………………………………………………..

B:…………………………………………………………………………………………..

C:………………………………………………………………………………………….

F:………………………………………………………………………………………….

b) i) The organisms reproduces by:

………………………………………………………………………………………………

ii) Using diagrams only describe six successive stages of the type of reproduction mentioned in b(i) above

22) a) Name the kingdom to which bacteria belong:

……………………………………………………………………………………………

bi) State the three differences between bacteria and viruses.

bacteria / Viruses

ii) State two characteristics common to bacteria and viruses.

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

c) Name two diseases caused by bacteria and viruses

Diseases caused by bacteria:

………………………………………………………………………………………………………………………………………………………………………………………………

Diseases caused by viruses:

………………………………………………………………………………………………………………………………………………………………………………………………