BIOLOGY EXAM QUESTIONS FOR SS2 FIRST TERM

FIRST TERM SS2 BIOLOGY EXAMINATION QUESTIONS – EDUDELIGHT.COM

FIRST TERM EXAMINATION BIOLOGY

SUBJECT: BIOLOGY              TIME: 1HR 30MINS   CLASS: SS  2

1.Euglena moves by A. whipping action of flagellum  B. beating of its cilia  C. pushing out a jet of water D. beating the pseudopodia and cilia simultaneously.

2.The organelle which eliminates water from the body of protozoa is A. plasma membrane  B. contractile vacuole  C .cell wall D. protoplasm.

3.Which of the following is not present in the nucleus of a cell? A .chromosome B. nucleolus  C. mitochondrion  D. gene

4.In a unicellular organisms, essential nutrients can be transported directly to all part of the body by the process of diffusion only because unicellular organisms have A. a large surface area to volume  B. a large volume to surface area C. permeable cell membrane  D. outer membrane made of cellulose.

The diagram below illustrates the structure o a unicellular organism. Use the question to answer number6-9.

5.What is the name of the organism?  A. amoeba  B. paramecium C. euglena  D.  chlamydomonas

6.What is the biological function of  labeled part III?  A. reproduction  B. osmoregulation  C. locomotion  D. irritability

7.Which of the labeled part does the organism uses for photosynthesis? A. II  B. IV  C.VI  D.V

8.The part labeled V is used for   A. photosynthesis  B. respiration  C. excretion  D .irritability

9..Euglena may be classified as plants because  it   A. has chloroplast B. has a gullet C. lives in water   D. possesses flagellum

10. Which of the cell inclusions can destroy other cell organelles? A. centriole B. ribosome   C. lysosome   D. mitochondria

11.In which of the following  tissues will osmosis occurs?    A. boiled and peeled yam  B. raw and peeled yam   C. boiled and unpeeled yam   D. roasted and peeled yam

12.Spirogyra is regarded as a multi-cellular plant because   A. the cylindrical cells are linked end to end    B.its  cells are linked together by cytoplasmic strands   C. its cells are large   D. it is an algae containing a large vacuole

13.The name of the enzyme that catalyzes the conversion of glucose to glucose-6-phosphate at the beginning of the glycolysis is   A. phosphate –fructokinase  B. glucose  isomerase  C. hexokinase  D.glucose-6- kina

14.Which of the following organism is  one celled and free- living?   A. volvox  B.spirogyra 

C .rhizopus  D. chlamydomonas

15.Which structure in amoeba performs similar function as the kidney in higher animals?  A. cell membrane  B. contractile vacuole  C. cytoplasm  D. food vacuole  

16.The function of ribosome in a cell is   A. protein synthesis  B. starch synthesis   C. transport of materials  D. lipid storage

17.The fundamental unit of living organism is the  A. cell  B. organ   C. tissue  D. nucleolus

18.Movement of water across a semi- permeable membrane from a weaker solution to a stronger solution  is known as   A. transpiration  B. diffusion  C. osmosis  D. haemolysis

19.Which of the following organelles is referred to as “suicide bay”?  A. mitochondria   B. lysosome C .golgi body D. ribosome.

20.  A spirogyra cell was placed in solution X. After 1 minute it has  been  plasmolysed . Solution X was   A. tap water  B. very strong solution  C. a very a weak solution  D. a weak solution

21.Which of the following organisms can exist as a colony?  A. spirogyra  B. amoeba  C. volvox  Paramecium

22.The mode of feeding in green plant is   A. parasitic  B. saprophytic  C .holozoic D.holophytic

23.Mitosis can be observed in all of these except in  A. tip of shoot  B. nail of a man  C. horn of cattle D. sperm cell of man

24. Glycolysis takes place in the A. nucleus B. cytoplasm  C. mitochondrion  D. endoplasmic reticulum

25.Which of the following does not reproduce by conjugation?  A.paramecium   B.mucor  C .rhizopus  D .amoeba

26.All the following are types of asexual reproduction except  A .conjugation  B. fragmentation  C. fission  D. budding

27.Which of the following processes involves gamete formation? A. binary fission  B.conjugation  C.mitosis  D.meiosis

28.Which of the following is not a cell organelle ?   A.endoplasmic reticulum   B.fat droplet  C.golgi body  D. ribosome

29. Which of the following is not a type of response  ?  A .chemotropism  B. geotropism 

C. genotropism D .thigmotropism

30.A plant that can commonly undergo vegetative propagation by means of leaves is   A. hibiscus  B bryophylum  C. crotalaria   D. spirogyra.

31.Which of these scientists is not associated with cell theory?   A. Felix Dujardin   B. Mathias Schleiden  C. Micheal   Faraday   D. Robert Hooke.

32.In mammals , fertilization takes place in the   A. ovary  B.oviduct  C.uterus  D.vagina

33.Which of the following stores sperm?  A.cowper”s gland  B. epididymis  C. seminal fluid 

D. vas deferens

34.The end product of glycolysis is ………..acid   A. fumaric  B. pyruvic  C. isometric  D.sussinic.

35.Yeast reproduces by a process called   A .binary  fission  B. binary fusion  C. budding  D.conjugation

36.The process that leads to the bursting of red blood cells placed in a  hypotonic solution is called A.cyclosis  B.haemolysis  C. osmosis D. plasmolysis

37.Respiration requiring oxygen is known as  A. oxidation  B.aerobic respiration  C.anaerobic respiration   D .oxidation- reduction respiration

38.All the following are methods of artificial vegetative propagation except  A.cutting   B.use of modified leaves   C.marcotting  D.grafting.

39.The unit contain in a cell structure responsible for a change in form and shape of an organism is called  A.mitochondria  B.gene  C.ribosome  D.lysosome

40.The plant cell mostly stores food as  A. glycogen  B.auxin  C.hormones  D.starch

41.All the following organelles have  membranes except  A .nucleus  B .vacuoles  C. cell membrane  D .cell wall.

42. The cell wall of plants is rigid due to the presence of   A.canbium  B. cellulose  C. cortex  D. chloroplast

43.The structure responsible for the transportation of materials within the cell is   A. ribosome  B. cell membrane  C .endoplasmic reticulum  D. nucleus

44.Which of these is an anabolic process?  A.digestion  B.respiration   C.decompsition  D. growth.

45.In anaerobic respiration in yeast, the pyruvic acid is converted to  A .ethanoic acid   B. lactic acid C.tri-carbocylic acid  D. ethanol

46.Cellular respiration  occurs in the  A. chloroplast  B. food vacuole  C. mitochondria  D. nucleus

47.In osmosis, when the concentration of the two solutions become equal ,the solution is said to be  A. hypertonic  B .hypotonic  C. isotonic   D. neutral

48.Diffusion can be affected by all of following except  A .concentration gradient  B. size of the molecules  C. temperature  D.colour of the solution

49.In tissue respiration, energy is in form of    A .adenosine diphosphate(ADP)  B. glycogen

C. starch  D.adenosine triphosphate(ATP)

50.At what stage of mitosis are the chromosomes drawn to the middle  A .prophase B. anaphase C. metaphase  D.telophase

FIRST TERM SS2 BIOLOGY EXAMINATION QUESTIONS – EDUDELIGHT.COM

THEORY; ANSWER 3 QUESTIONS ONLY.

1a.Make a well labeled diagram of a typical plant cell (10-12cm) long to show its external features (4mks).

B .List four ways in which   plant cell and animal cell differ(4mks)

c. State  one function each of the following  cell organelles  (i) chloroplast  (ii)ribosome   (iii) pyrenoid  (iv) mitochondrion(2mks)

2a.Define (i) osmosis (ii) Diffusion (iii) plasmolysis (3mks)

B .Describe what happens when red blood cells are left for thirty minutes in (I ) distilled water (ii) salt solution with same concentration as the cytoplasmic fluid(3mks)

c. Explain the process of osmosis using a living cell (2mks

d. Explain the following terms (1) tactic response (ii) nastic response (2mks

3a. Explain the following mode of nutrition in plant (i) photosynthesis (ii) chemosynthesis (2mks)

b .Write a chemical equation representing the type of respiration that occurs in the muscles during  a strenuous  exercise (3mk)

ci.Describe an experiment to show the effect of plasmolysis on a fresh filament of spirogyra(2mks)

cii.How can the process be reversed(1mk)

d.. Define the term catabolism and two biological processes that are catabolic  in nature(2mks)

4a.Use chemical equation only to express the process of cellular respiration(2mks)

b .Name the structure in a cell in which ATP is formed(1mk)

c. In tabular form state  the differences between aerobic and anaerobic respiration(3mks)

d. Explain alcoholic fermentation (4mks)

5a.Define reproduction (2mks) 

(ii) List all forms of asexual reproduction (3mks)

b. Describe the process of sexual reproduction in spirogyra (3mks)

c. Mention two parts of plant where mitosis takes place (2mks).

FIRST TERM SS2 BIOLOGY EXAMINATION QUESTIONS – EDUDELIGHT.COM