Which of the following structures is a site of respiration?

1.  Chloroplast
2.  Ribosome
3.  Nuclear
4.  Nucleic acid
5.  Mitochondrion

A grasshopper ventilates its gaseous exchange surfaces by

1.  moving the diaphragm
2.  beating of cilia
3.  rhythmic body movement
4.  opening of spiracles
5.  moving its rib cage

What is the main product of anaerobic respiration in plants?

1. Uric acid
2. Lactic acid
3. Water
4. Alcohol
5. Pyruvic acid

The main product of anaerobic respiration process in plants is

1.  uric acid
2.  lactic acid
3.  alcohol
4.  water
5.  oxygen.

Oxygen passing from the atmosphere into the blood of a mammal takes one of the following routes:

A.bronchi - bronchioles - trachea - alveoli.

B.trachea - bronchioles - bronchi - alveoli.

C.trachea - bronchi - bronchioles - alveoli.

D.bronchioles - bronchi - trachea - alveoli.

  Muscle fatigue in the body is caused by:

1. lack of carbon dioxide 
2. lack of lactic acid 
3.  lack of oxygen 
4.  pyruvic acid

The product of anaerobic respiration process in animals is:

A.uric acid     

B. lactic acid

C. sulfuric acid 

D. hydrochloric acid

Aerobic respiration takes place in the presence of:

1. water
2. carbonidoxide
3. oxygen
4. hydrogen

In which environmental condition the loss of water vapour from plants is mostly favourable? 

1. Hot and Windy day 
2. A saturated atmosphere 
3. Cool and dry atmosphere 
4. Windy day 
5. Hot day.      

The product of anaerobic respiration process in animals is

1.  lactic acid   
2. carbondioxide  
3. alcohol
4. water  
5.  oxygen.

Which respiratory surface is used for gaseous exchange in tadpoles?

1. Spiracles
2. Gills
3. Lungs
4. Skin
5. Book lung

A respiratory surface of fish is called: ........... 

1. gills 
2.  spiracle
3. fins 
4.  operculum

What is the main product of anaerobic respiration in animals?

1. Lactic acid
2. Alcohol
3. Water
4. Carbon dioxide

9. How are the respiratory surfaces adapted to their role? Give four points.

5. (a) (i) What do you understand by the term respiration?

    (ii) Name the two types of respiration.

(b) Explain how gaseous exchange occurs across the aveolus.

Differentiate anaerobic from aerobic respiration. Tabulate your answer as shown in following table.

9. (a) Explain how anaerobic respiration is applied in a real life situation.

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   (b)List the organs responsible for gaseous exchange in the following organisms:

   1. Goat

   2. Grasshopper

   3. Frog

   4. Tilapia.

10. (a) Differentiate the following:

1. Breathing and respiration

2. Inhalation and exhalation

(b) Briefly describe the following phenomenon:

1. A person breathes more when running fast.

2. The ribs move outwards and upwards while the diaphragm flattened when air enters the lungs.

10. (a) Explain two factors affecting gaseous exchange in animals.

(b) Why does a fish die when taken out of water to land while a frog survives in both water and on land?

Describe the mechanism of breathing in human beings. Diagrams are not necessary.

(v)   Respiration takes place in animal only while photosynthesis takes place in plants………………

(viii)  Anaerobic respiration is one of the causes of muscle fatigue………………

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 B in a table provided.

9.(a) Define the following terms:

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

(ii)Anaerobic respiration 

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

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

9.(a) Mention three structures used for gaseous exchange in land plants

(b)Briefly explain how the structure of a leaf is adapted to allow rapid gaseous exchange.

(c)Name the product of anaerobic respiration in human being muscles.

2.In each of the following statements, write TRUE if a statement is correct or FALSE if the statement is not correct.

(i) Beriberi, gonorrhoea and syphilis are diseases caused by bacteria .......„ 

(ii) Blood capillaries are narrow and their walls are one cell thick ......... 

(iii) Rickets is prevented by increasing the amount of vitamin D in a diet

(iv)Anaerobic respiration uses oxygen while aerobic respiration does not use oxygen ......„.

(v)Gaseous exchange surface must have large alveoli .........

(vi)Scientists use beam balance to measure volume .........

(vii)A person with blood group AB is called universal donor .........

(viii)Heartburn is a disorder of digestive system.........

(ix)Photosynthesis uses water and releases oxygen .........

(x)It is useless to keep a First Aid Kit at schools .........

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

(i)A microscope is not a very important equipment in the biology laboratory . 

(ii)Plant cell has irregular shape while animal cell has regular shape .........

(iii)It is safe to touch body fluid with bare hands when giving First Aid ... ... ... 

(iv) Zoology is the study of animals .. ......

(v)The conditions necessary for photosynthesis are presence of carbondioxide and oxygen... ... ...

(vi)Absorption of digested food takes place in the eosophagus .... 

(vii)Gaseous exchange in plants takes place through the gills .........

(viii)Recycling means turning waste material into useful products...........

(ix)A cell is a group of organisms performing the same function .........

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

Why is it impossible for a locust to die when its head is held under water?

Why do people breathe more when they run fast?

Identify the organs which are used for gaseous exchange in the following organisms:

1. Cow
2. Frog
3. Maize leaf
4. Fish

Plants cannot survive without carrying out the process of gaseous exchange. In three points, justify this statement.

(ix)Transpiration is not a necessary process to plants . ........

(b)Name two structures concerned with gaseous exchange in plants. 

(c) Explain the importance of gaseous exchange in plants.