Biology Class 9th & 10th

                                               Class 9th,10th Federal Board 2009 
Paper:Biology (Objective Type)                                                 Time Allowed: Max.Marks:

Note:Use this paper to write the answers to the objective questions.No marks will be awarded for           cutting,over-writing or using a pencil.This paper must be tagged with the answer-book.

1.a-   Insert correct option.                                            (17)

(i)      What proportion of energy in a man's body is used to maintain the body temperature constant?

         (a)   Zero%                (b)   34%

         (c)   66%                   (d)   43%

(ii)      Ibn=al-Haitham is a well-known Muslim scientist, He became famous because:

a)       He described blood circulation in human body.

b)       Of his tribution towards studies in optics.

c)       He wrote about plants and animals.

d)       In his book, he desscribed bones, muscles and organs.

(iii)     In comparison with the surrounding air the arterial blood in human lungs has:

a)       Less oxygen and more CO2

b)       More oxygen and less CO2

c)       More water than CO2

d)       Oxygen and CO2 in equal amount

(iv)     The diagram below shows the structure of a unicellular organism found in ponds. What is the            function of the part labeled A:

          (a)   Locomotion                 (b)   Osmoregulation

          (c)   Disestion                     (d)   Reproduction

 (v)      What of the following regulates the balance of water and opening of stomata?

          (a)   Ca++                         (b)   Mg++

          (c)   K-                              (d)   Fe++

(vi)     Which parts of the frog's brain is associated the sence of smell?

          (a)   Fore brain                  (b)   Mid brain

          (c)   Hind brain                   (d)   Posterior part of brain

(vii)     Write the correct sequence of the units of classification.

(a)      Genus-->Class-->Family-->Order

(b)      Genus-->Family-->Order-->Class

(c)      Family-->Genus-->Order-->Class

(d)      Family-->Class-->Genus-->Order

(viii)    Which phylum does Cuttle-fish belongs to?

           (a)   Arthropoda                  (b)   Chordata

           (c)   Mollusca                      (d)   Coelenterata

(ix)      The producation of urea increases when the diet contains large amounts of:

           (a)   Ca  ohydrates              (b)   Fats

           (c)   Cellulose                     (d)   Proteins

(x)       Who disproved the theory of spontaneous Generation?

           (a)   Pasteur                       (b)   Oparin

           (c)   Spallanzani                  (d)   Redi

(xi)      Which of the following is an example of an organic compound?

           (a)   H2O                             (b)   CO2

           (c)   C6H12O2                     (d)   NH3

(xiii)     Which of the following set of changes occurs during inspiration in man? 

 (xiv)    Colour blindness results from an allele that is:

          (a)   Dominant

          (b)   Present of Y-chromosome

          (c)   Present of X-chromosome

          (d)   Present only in females

(xv)     All populations living in the same environment constitute a/an:

           (a)   Ecossystem                 (b)   Habitat

           (c)   Biosphere                    (d)   Community

(xvi)    What is the plant tissue that makes up the root cap?

          (a)   Epidermal                     (b)   Collenchyma

          (c)   Excretory                      (d)    Circulatory

                                                         (Subjective)

2-      Attempt any fourteen parts.                                                              (42)

(i)      Complete the following table:

(ii)      Figure (a) above is the diagram of human arm and figure (b) is its cross-section throught A-B. Write           the names of the parts marked A.B and C.

(iii)     The pancreas is a glandhaving dual functions of digestion and regulation of blood sugar level which           other endocrine gland has dual functions and what are those functions?

(iv)     The pigmentation of skin is due to melanin production under the control of gene "A". its recessive           alleles in homozygous "aa" condition cause loss of couple having the following genotypes begettingan

          child:Aa x Aaalbino

(v)      Complete the following table: 
 (vi)      Complete the following table:

  (vii)      Write one function of each of the following enzymes:

           (a)   Amylase                 (b)   Ptyalm

           (c)   Lipase

(viii)     In cell organelles. how do cristae differ from cisternae in their structural details?

(ix)       A nervous system consists of dendrites, axon and nucleus. Lable these structured in the diagram             given below:

 (x)      What is hibernation? How does it differ from:

          (a)   Winter sleep               (b)   Estivation

(xi)      Name the various methods of respiration in frog.

(xii)     Complete the table given below using the words given in the box.

           Algae, Fern, Nostoe, Rhizopus, Moss, Pinus 

 (xiii)    Complete the sequence:

 (xiv)    Make diagrams using appropriate symbols to give the most probable biological explanation of the            following statements:

a)       The baby has blue eyes but both her parents have brown eyes (Assume that brown is dominant over            blue)

b)       A rabbit breeders breeds only white rabbits. He never had any other colour produced.

(xv)     Classify each of the following as producer, herbivore, carnivore or omnivore:  

 (xvi)    What is respiration? How aerobic respiration differs from anaerobic? Which of the two more            productive?

(xvii)

a)       Classify carbohydrates.

b)       Write the chemical formula of glucose.

c)       How much energy is provided by one gram of glucose?

a)       Give chemical equation of the process of photosynthesis.

b)       Name at least four factors necessary for photoaynthesis.

(xix)    Give three major differences between monocot and dicot plants.

Note: Attempt any two questions.                                        (2x13=26)

3a-    In garden pea, yellow colour of seed is dominant over green colour. A homozygous yellow-seeded           plant is crossed with a

          homozygous greem-seeded one. What will be the genotypes of all the possible offspring? Work out           the cross with the help of a punnett's squre.

b-      Explain the importance of pisum sativum used by mendel as his experimental organism,

c-      Red / Green colour blindness is a sex-lined trait carried on X-chromosome. With the help of a cross,          explain why there are

         more colour blind men than colour blind women?

4.a-   With the help of alabeled diagram , described the life cycle of a fern.

b-      What are spermatophytes?

c-     Give the characteristics of a seed.

5.a-   Describe in detail the three fundamental character-istics that distinguish chordates from other animal           phyla.

b-      Distinguish between:

         (i)   Frog and a toad    (ii)   Ratitae and carinatae

c-      List at least three characters which help birds adapting to the aerial mode of life.