FORM TWO BIOLOGY NECTA 2015

THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATION COUNCIL

BIOLOGY FTNA 2015

(i)  The following are methods involved when scientists study things systematically except:

  1. Identifying the problem 
  2.  Guess the conclusion
  3. Formulating hypothesis
  4. Experimentation
Choose Answer :


(ii)  Which part of a microscope is responsible for magnification of a specimen?

  1. Mirror
  2.  Eyepiece
  3.  Stage 
  4.  Base
Choose Answer :


(iii)Which step will you first take when giving First Aid to a bus accident victim who has severe bleeding?

  1. Wash the wound with plenty of water to remove blood.
  2. Loosen the tightened clothes to supply oxygen to the victim.
  3. Use your finger to apply pressure direct to the bleeding point.
  4. Ask the person to go to hospital immediately.
Choose Answer :


(iv)A viral disease transmitted through sexual intercourse is known as.

  1. gonorrhoea 
  2. typhoid
  3. AIDS 
  4.  small pox
Choose Answer :


(v)  In the human digestive system the stomach is known as:

  1. a tissue
  2. a cell
  3. an organ
  4. an organism
Choose Answer :


(vi) Which of the following is not a proper method of waste disposal?

  1. Use of landfill
  2. Make pit latrine
  3. Recycling of materials
  4. Burning plastic waste at home
Choose Answer :


(vii)An organism with a rigid protective wall made up of chitin material is a representative of which Kingdom?

A.Fungi         

 B. Monera

 C. Plantae 

D. Protoctista

Choose Answer :


(viii)The disease and disorder of the human circulatory system includes:

A.Arteriosclerosis and heart burn

B.Blood pressure and sickle cell anemia 

C. Blood pressure and oedema 

D. Leukemia and heart burn.

Choose Answer :


(ix)The end product of fat/lipids in digestion process is called:

A.Amino acid  

B. Peptide

C. Glucose 

D. Fatty acids and glycerol

Choose Answer :


(x)The product of anaerobic respiration process in animals is:

A.uric acid     

B. lactic acid

C. sulfuric acid 

D. hydrochloric acid

Choose Answer :


2.Write TRUE if the statement is correct or FALSE if the statement is not correct.

i) A microscope is an instrument used to observe small objects which cannot be seen by using our naked eyes .........

(ii) Plant cells possess cellulose cell walls while animal cells do not .........

(iii)We can use dry wooden stick to move a victim of electric shock from the source of electric current. .........

(iv)Botanists study both plants and animals .........

(v)It is safe to warm the room by using charcoal when people are sleeping the whole night inside the room .........

(vi) Onions store food in leaves while carrots store food in root tubers ......... 

(vii) Gaseous exchange in fish takes place through spiracles .........

(viii)Materials which can be recycled include aluminium cans and magazines

(ix)All living things are made up of small units known as cells .........

(x)Biology is the study of non-living things .........

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2. Match each item in List A with a correct response in List B by writing its letter bellow the number of the corresponding item in the table provided.

LIST A

LIST B

(i) A term used for animals with four chambered stomach

(ii) A mulnutritional disorder caused by deficiency of protein in children

(iii) A enzyme responsible for digestion of protein.

(iv) Malformation  of bones caused by deficiency of vitamin D in diet

(v)  Failure to see in dim-light due to lack of vitamin A in diet

(vi) A painful sensation caused by regurgitation of stomach contents.

(vii) Bleeding of gums and poor healing of wounds due to deficiency of vitamin C

(viii) A Painful sore in the lining of digestive track

(ix) A Substance responsible for coagulation of milk

(x)    A person has loss of sensation and loss of appetite due to deficiency of vitamin B1 in diet.

 

 

A. Night blindness

B. Scurvy

C.  Pepsin

D. Pellagra

F. BeriBeri

G. Ulcers

H. Rickets

I. Kwashiokor

K. Marasmus

L. Dental Caries

M. Heart Burn

N. Renin

O. Anorexia Nervosa

P. Ruminants

Q. Bulimia Nervosa

 

 

 

 

 

 

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SECTION B

4.(a) List the major groups of living organisms. (Mention 5)

(b) Figure 1 represents an organism which feeds on dead organic matter. Study the diagram carefully then answer the questions that follow:

(i)What is the name of organisms in Figure 1?

(ii) Name the part labelled with letter A.

(iii) Mention the Phylum in which the organism you named in (a) (i) belongs.

Figure 1

(c)  Outline two disadvantages of Kingdom Fungi.

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5.What do you understand by the term "Personal hygiene"?

(b)      State four principles of personal hygiene. 

(c) State four principles of good manners:

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6.Define the following terms:

   (i) Diffusion                       (ii) Osmosis

(b)      Explain why a red blood cell immersed in a low concentrated solution bursts?

(c)      State one function of each of the following blood cells:

(i) Red blood cells (Erythrocytes) (ii) Platelets

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7.(a) What is First Aid?

(b)      List four components of the First Aid Kit.

(c) State the procedures of giving First Aid to a person who has been bitten by a snake.

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8.Define the terms "food chain" and "food web" as used in Biology.

(b)      Construct a food chain by using the following organisms:

Grasses, Snake, Grasshopper, Frog.

(c)  Explain the significance of food chain and food web in the real life situation. (Mention 2)

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SECTION C

9.         Explain the causes, mode of transmission and prevention measures of cholera as one of the communicable diseases in Tanzania.

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10.     Describe the causes, mode of transmission and prevention measures of Tuberculosis disease in the respiratory system.

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