FORM TWO BIOLOGY NECTA 2018

THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATION COUNCIL

BIOLOGY FTNA 2018

(i) Which of the following mineral salts is required by plants in large quantities? 

  1. Calcium
  2. Zinc
  3. Copper
  4. Iron
Choose Answer :


ii) Which of the following foods should be added to the diet of a person suffering from scurvy?

  1.  Groundnuts 
  2. Orange
  3.  Cassava 
  4. Fish
Choose Answer :


(iii)A term which describes organisms with similar nutritional habits is known as:

  1. community 
  2.  trophic level
  3. food chain 
  4. food web
Choose Answer :


(iv)   The movement of bulk fluid materials along a vessel or tube is termed as:.......

  1. transport
  2. osmosis
  3. mass flow
  4. oxidant.
Choose Answer :


(v)Which of the following labels indicates a substance which catches fire easily? .....

  1. Corrosive 
  2.  Flammable 
  3.  Harmful 
  4.  Oxidant
Choose Answer :


(vi)Which of the following types of waste cannot be recycled? ......... .

  1. paper
  2. metal scraps
  3. used syringe
  4. plastics
Choose Answer :


(vii)A respiratory surface of fish is called: ........... 

  1. gills 
  2.  spiracle
  3. fins 
  4.  operculum
Choose Answer :


(viii)A structure which encloses and protects the inner parts of a cell is called: ............ .

  1. cell wall
  2. chloroplast
  3. cell membrane 
  4.  nucleus
Choose Answer :


(ix)A communicable disease which affects a large number of people in a short period of time at a given locality is referred as: ...............

  1. Pandemic 
  2.  endemic
  3. sporadic
  4. epidemic
Choose Answer :


(x)Why are bats and birds not placed in the same species while they are closely related organisms? ...............

  1. They cannot interbreed to produce a fertile offspring
  2. They can interbreed to produce a fertile offspring
  3. One lays eggs and another can give birth
  4. One possesses feathers and another short beak.
Choose Answer :


2.For each of the items (i) - (x), write True if a statement is correct or False if the statement is not correct in a space provided.

(i) People living with HIV/AIDS should be isolated from the community

(ii)A microscope is an instrument that is used to magnify large objects

(iii)Kingdom is the highest rank of classification 

(iv)In ecosystem herbivores feed on carnivores 

(v) Inhaled air contains more oxygen than exhaled air ...............

(vi) Liverwort is a representative member of kingdom fungi ............ 

(vii)Ventricles have thicker walls than the auricles .. 

(viii)Colon is a special site for absorption ofdigested food materials ... ...

(ix)Unicellular organisms are made up of one cell only ...............

(x)Poor waste disposal may cause accidents at home and school . . . . . .

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3.Match the phrase in List A with responses in List B by writing the letter of the correct response in List B below the corresponding phrase number of List A in a table provided.

LIST A LIST B
(i)The process by which solvent molecules move from a region of high solvent concentration to a region of low solvent concentration through a selectively permeable membrane.
(ii)The process by which particles move from a region of high concentration to a region of low concentration.

(iii)An extended epidermal cell in plants which absorbs water and mineral salts from the soil.

(iv)The tissue which transports manufactured food from the leaves to the other plant parts.

(v)A process by which red blood cells burst due to water gain by osmosis when placed in hypotonic solution.
  1. Diffusion
  2. Root hair
  3. Plasmolysis
  4. Xylem
  5. Phloem
  6. Haemolysis
  7. Capillarity
  8. Osmosis

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4.Complete each of the following statements by writing the correct answer in the space provided.

(i)A temporary treatment carried out to a sick person before arriving to the hospital is termed as . 

(ii)Turning waste into useful products is termed as . 

(iii)A place where solid waste is buried in the ground is called .......... . 

(iv)An involuntary ejection of substances from the stomach through the mouth is called . 

(v)The combustion of waste at high temperature is known as ...............

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SECTION B

5. (a) State the meaning ofthe following terms as used in Biology.

(i)A cell ..

(ii)System

(iii)Organ ............

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(b) Draw a large diagram of an animal cell and label two parts.


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6. Define the following terms used in the study of Balance of nature.

(i)Biotic component

(ii)Abiotic component

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(b) Give two examples of each of the following group of organism in trophic levels:

  1. Producers
  2. Primary Consumers
  3. Decomposers
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7.Study the sculpture of a villus below and then answer the questions that follow:

(a) In which part of the alimentary canal is villus found? ... ... 

(b) Name the parts labelled with letters A, B and C

(c) State three adaptations of the villus for the absorption of food in the alimentary canal.

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8.If you put a piece of bread in a wet cupboard after a few days the bread will be covered with organisms called Fungi.

(a) Give a common name of these fungi which grow on bread .

(b) Outline three Phyla of the Kingdom Fungi.

(c) Outline five advantages of the kingdom Fungi.

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9.(a) Define the following terms:

(i)Aerobic respiration ... ... ... ... ...

(ii)Anaerobic respiration 

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(b) Mention three products of anaerobic respiration in yeast cell.

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(c) Write a balanced equation that summarizes the process of aerobic respiration.

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10. Explain the importance of studying Biology. Give six points.

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11. Gonorrhea is a bacterial disease caused by Neisseria gonorrhea. Elaborate:(a) Its transmission

(b)Six symptoms

(c)Six preventive measures

(d)Its treatment

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