ICSE Board Class 10 Biology Sample Papers 2009

 Sample Paper – 2009
 Class X
 subject-biology

Answer all the question from this section
Question – 1. 

(a) Choose the most appropriate answer : 
   (i) Human stature is the example of : 
   (p) Polygenic trait (q) Bigenic trait (r) Monogenic trait (s) Codominance 
  (ii) The rate of transpiration increases with :
   (p) increase in humidity of air (q) increase in wind velocity 
   (r) reducing light intensity       (s) decrease in wind velocity 
    (iii) Development of secondary sexual characters in human males is promoted by : 
     (p) ADH (q) oestrogen (r) testosterone (s) ACTH 
    (iv) Which of the following is not a method of birth control : 
      (p) amniocentesis (q) vasectomy (r) contraceptive pills (s) tubectomy 
    (v) Which of the following diseases are infectious : 
     (p) Deficiency diseases (q) Communicable diseases (r) Degenerative diseases 
     (s) Allergies.  

(b) Name the following : 
     (i) Disorders due to fault in chromosome, 
     (ii) Division which brings about vegetative growth,
     (iii) The process of attachment of fertilized ovum to uterine wall, 
     (iv) The cells of retina which differentiate colour, 
     (v) The process in which water absorption needs metabolic energy. 

(c) Find if the following statements are true (T) or false (F) : 
      (i) Snapdragon gives the example of intermediate expression, 
      (ii) When cell is placed in a solution higher concentration, water diffuses out of the cell.
      (iii) Hormones can be proteins, amino acids and steroids, 
       (iv) The cutting of spermatic duct in male is called tubectomy, 
       (v) NICD in Lucknow is seriously engaged in doing research on infectious diseases. 

(d) Complete the following statements by choosing the correct alternative out of those given within brackets. 
       (i) Vaccine is dead or weakened  _________ [drug / medicines / microbe] 
       (ii) Cell of follicle produce ____________ [oestrogen / testosterone / androgen] 
       (iii) The middle ear is filled with ________ [air / water / gas] 
       (iv) The splitting of water results in the release of _______ [oxygen / water / oxygen   and water] 
        (v) The number of chromosome in human being is _________ [40, 46, 48] 

(e) Define the following : 
    (i) Meiosis, (ii) Transpiration, (iii) Blind spot, (iv) myometrium, (v) Antiserum. 

(f) Differentiate between the following : 
     (i) X–linked and Y–linked inheritance, (ii) Turger pressure and wall pressure,  
     (iii) J–shaped curve and S–shaped curve, (iv) Active and Passive Immunity, 
     (v) Communicable and non-communicable diseases. 

(g) Give reason for the following : 
     (i) The rate of transpiration increases in hot and dry weather. 
     (ii) Grapes shrink when kept in honey. 
     (iii) We could not smell the perfumes on our clothes while a person approaching us
still perceives its smell. 
     (iv) Thyroxine may be administered to young children who show symptoms of
cretinism. 
     (v) People living in hilly region usually suffer from simple goiter. 

(h) Match the following : 
(i)Hemizygous   (a) Nerium 
(ii) Turgidity  (b) Male 
(iii) Sunken Stomata  (c) Hypotonic Medium 
(iv) Autotrops  (d) Convex lens 
(v) Presbyopia  (e) Green plants 

Question 2 Choose the odd one out:
a. RBC, ATP, WBC, Platelet
b. Auricle, Aorta, Ventricles
c. Eosinophil, Basophil, leucocytes, Nucleoplasm
d. Thrombin, Monocot, Fibrin, Vita mink.
e. Fructose, Sucrose, Glucose, Calcium 

Section – II
Answer ANY FOUR question from this section

Question – 3 
(a) Write in brief about health programme in our country. 
(b) What are sulphonamide family of drugs ? Give examples. Name the diseases it can control. 

Question – 4
(a) Which is the most thickly populated country and which is the most thinly populated
country in the world ? State reasons for this. 
(b) Draw a simple diagram to show the arrangement of following parts in the female
reproductive system and label the parts : (i) Ovary  (ii) Oviduct  (iii) Uterus  (iv) Vagina and (v) Cervix.  

Question – 5. 
(a) What will happen if  (i) adrenal gland is removed and (ii) blood sugar level falls ? 
(b) Draw neat and labelled diagram of brain. 

Question – 6 
(a) Draw a diagram of the eye of a mammal and name its parts. 
(b) ‘Oxygen is a waste product of photosynthesis.’ Discuss. 

Question-7
A. Write the difference between       
a. Cerebrum and cerebellum
b. Sensory neuron and motor neuron

B.       
a. What is a lachrymal gland?         
b. What is meant by power of accommodation of the eye?
c. Mention the characteristics of the image that falls on the retina of the eye.

C.           
a. Write the four principal tastes and the respective regions of the tongue concerned
with their perception.
b. How is ear protected from dust and bacteria?

Question -8
(a) Explain the factors affecting transpiration. 
(b) What is significance of osmosis ? Explain in brief. 

Question – 9
(a) Draw a suitable cross to show Mendel’s first law. 
(b) Describe the structure of a chromosomes. What are giant chromosome ? Where are
they found ?