Which of the following organelles is involved in respiration?

1.  Cell membrane   
2.  Nucleus
3.  Chloroplast 
4.  Mitochondrion
5.  Lysosome

(iii)    Gaseous exchange in human lungs occurs in the:

(ii)      One of the following is not a part of a microscope:

1.  Stage  
2.  Eye piece
3.  Coarse adjustment knob 
4. Light 
5. E. Mirror

(iii)    Gaseous exchange in human lungs occurs in the:

A.        Alveoli B. Mouth C. Nose D. Bronchioles E. Trachea

(iv)     Which of the following parts transports water within a plant?

1.   Phloem 
2. Xylem 
3. Cambium 
4. Epidermis 
5. Pith

(v)      The following group of organisms belongs to the same kingdom:

1.  Bat, Whale, Amoeba 
2.  Euglena, Yeast, liverwort
3. Grasshopper, Bat, Fish 
4.  Amoeba, Housefly, Mosquito 
5. Paramecium, Bat, Moss

(vi)     HIV/AIDS can result from the following behaviour:

1.  Abstaining from sex and use of condoms
2. Rape, alcoholism and drug abuse
3. Faithfulness in marriage
4.  Avoiding multiple sexual partnership
5.  Using contraceptive pills

(vii)   A food sample X turned blue-black when iodine solution was added onto it. The conclusion is that sample X contained:

1. Non reducing sugar 
2.  Reducing sugar
3. Starch
4.  Protein 
5.  Lipid

(viii) A patient having blood group B can receive blood of a donor with blood

group:

1.  B only 
2.  AB only
3. O only  
4.  B or AB 
5.  B or o

(ix)     Which of the following does not secrete digestive enzymes?

1.  Oesophagus 
2. Pancreas
3. Stomach 
4. Salivary glands
5.  Ileum

(x)      The body is protected against pathogens by:

1.   Bone marrow 
2.  Erythrocytes
3.  Thrombocytes 
4. Lymph
5. Leucocytes