THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATIONS COUNCIL OF TANZANIA

FORM TWO NATIONAL ASSESSMENT

033 BIOLOGY

Time 2:30 Hours Year: 2020

Instructions

l . This paper consists of sections A, B and C with a total of eleven (11) questions.

2.Answer all questions in sections A and B and one (1) question from section C.

3.Section A carries thirty (30) marks, section B fifty (50) marks and section C carries twenty (20) marks.

4.Alt writing must be in blue or black ink except drawing which must be in pencil.

5.Cellular phones and any unauthorised materials are not allowed in the assessment room.

6.Write your Assessment Number at the top right corner of every page.

SECTION A (30 Marks)

Answer all questions in this section.

1. For each of the items (i) - (x), choose the correct answer from among the given alternatives and write its letter in the box provided.

(i)Which condition occurs when a plant cell is immersed in highly concentrated solution?

1. Turgidity 
2. Crenation
3. Plasmolysis
4. Haemolysis

(ii)The process by which green plants and other organisms use sunlight energy to manufacture their own food is known as 

1. respiration 
2. digestion
3. photosynthesis
4. nutrition

(iii)Which storage organ does sugarcane stores its food after photosynthesis'?

1. Stem 
2. Root tuber
3. Tap root
4. Rhizome

(iv)The following are the end products of anaerobic respiration in plants except

1. energy. 
2. lactic acid. 
3. carbon dioxide. 
4. alcohol.

(v)Which organisms belongs to Kingdom Plantae?

1. Fern and amoeba 
2. Moss and mucor
3. Liverwort and yeast
4. Fern and moss

(vi)Bacteria and fungi are ecologically referred as

1. producers. 
2. decomposers. 
3. parasites. 
4. predators.

(vii)Unexpected event which can cause injury and sometimes death is called

1. accident.
2. emergency.
3. outbreak.
4. disaster.

(viii)The liquid induced into the body of an organism so as to increase antibody production is known as

1. tissue fluid.
2. lymph.
3. vaccine. 
4. plasma.

(ix)People with talking behaviour while eating are considered to have 

1. bad manner. 
2. table manner.
3. talkative manner.
4. chatty manner.

(x)Arteries have thick muscular walls because they transport blood 

1. at low pressure. 
2. at high pressure.
3. towards the heart.
4. away from the heart.