8 Mar 2017

10th Biology Subjective and objective

class tenth bio full length paper objective and subjective

Name: _________________________________      10th: Biology-A                                   Time: 30 Mins
                                                                                    Marks: 40
Q. No.1: Choose the right answer.                                                                                                   (40 x 1 = 40)
(1)                Ginger reproduces by the formation of:
            (A) Rhizomes              (B) Corms                   (C) Bulbs                     (D) Suckers
(2)               The complete map of human genome was published in:
            (A) 2000                      (B) 2001                      (C) 2002                      (D) 2003
(3)               Increase in risk of heart diseases in passive smokers:
            (A) 20 - 30%               (B) 25% - 30%            (C) 25% - 40%            (D) 30% - 40%
(4)               The descending limb of loop of Henle allows the reabsorption of:
            (A) Water                    (B) Salts                     (C) Both a and b         (D) None of these
(5)               Which are referred as brainstem?
            (A) Medulla oblongata                                    (B) Pons                     
(C) Midbrain                                                   (D) All of these
(6)               IPCC was established in:
(a)    1990                      (B) 1992                      (C) 1996                      (D) 1998
(7)               How much protein (dry weight) per acre per year is produced by algae grown in ponds?
            (A) 20 tons                  (B) 25 tons                 (C) 30 tons                  (D) 35 tons
(8)               Sir Alexander Fleming was awarded Nobel Prize in:
            (A) 1940                      (B) 1945                      (C) 1950                      (D) 1955
(9)               Hallucinogens affect on:
            (A) Sympathetic nervous system                    (B) Parasympathetic nervous system
            (C) Both a & b                                                (D) None of these
(10)           The leaflets of corolla are called:
            (A) Petals                    (B) Sepals                    (C) Stamens                (D) Carpels
(11)           The species of bacteria that reproduce by formation of endospores:
            (A) Clostridium           (B) Bacillus                 (C) Both A & B          (D) None of these
(12)           Narrow opening at the floor of pharynx which leads to larynx:
            (a) Epiglottis               (b) Glottis                    (c) Nasal Cavity          (d) Nostril
(13)           The waste product of carnivorous plants and lady finger:
            (a) Resins                    (b) Gums                     (c) Latex                      (d) Mucilage
(14)           How many surgical medical instruments were personally designed by Abu al-Qasim Al-Zahrawi:
            (a) Less than 200         (b) 200                         (c) Over 200                (d) None of these
(15)           All spinal nerves are:
            (a) Sensory                  (b) Motor                     (c) Mixed                    (d) None of these
(16)           Which is not the part of external ear?
(a) Ossicles                  (b) Pinna                      (c) Auditory canal       (d) Ear drum
(17)           When a muscle contracts and bends the joint, it is called as:
            (a) Flexor                     (b) Extensor                (c) Flexion                   (d) Extension
(18)           Chemical used in leather treatment:
            (A) Formic acid           (B) Ethanol                 (C) Glycerol                (D) Acrylic acid
(19)           Which drugs are obtained from animals?
            (A) Fish liver oil          (B) Bee’s wax             (C) Antitoxins             (D) All of these
(20)           In urine chemical composition, the amount of urea:
            (A) 8.9 g/l                    (B) 9.1 g/l                   (C) 9.3 g/l                    (D) 9.5 g/l

(21)           The part of brain present on the top of medulla:
            (A) Cerebrum              (B) Pons                      (C) Cerebellum            (D) Thalamus
(22)           Blood glucose 2 hours after a 75 gram glucose drink for pre-diabetic:
            (A) Less than 140 mg/100ml                          (B) From 140 to 200 mg/100ml         
(C) Over 200 mg/100ml                                  (D) From 40 to 80 mg/100ml
(23)           Hypogeal germination is found in:
            (A) Maize                    (B) Coconut                (C) Both a & b                        (D) None of these
(24)           In humans, possible number of chromosomal combinations at fertilization is:
            (A) 70,368,744,177,664                                  (B) 75,364,644,177,664
            (C) 71,368,744,177,664                                  (D) 73,368,744,177,664
(25)           Carpel consists of:
            (A) Stigma                  (B) Style                      (C) Ovary                    (D) All of these
(26)           Date of death of J. de Lamarck:
            (A) 1740                      (B) 1742                      (C) 1744                      (D) 1829
(27)           Average sea level rising in a year:
            (A) 0.6 cm                   (B) 0.7 cm                   (C) 0.8 cm                   (D) 0.9 cm
(28)           Saccharomyces is used to prepare:
            (A) Formic acid           (B) Ethanol                 (C) Glycerol                (D) Both b & c
(29)           Morphine is derived from:
            (A) Iodine                   (B) Foxglove               (C) Opium                   (D) Aspirin
(30)           Perceptions that have no basis is reality, but that appear entirely realistic:
            (A) Hallucinogens       (B) Narcotics               (C) Emotions               (D) Hallucinations
(31)           The end of muscle attached with movable bone:
            (A) Extension              (B) Flexion                  (C) Insertion                (D) Origin
(32)           Which vitamin synthesizes rhodopsin?
            (A) A                           (B) B                           (C) C                           (D) D
(33)           Bending of arm at elbow joint:
            (A) Flexor                   (B) Flexion                  (C) Extension              (D) Extensor
(34)           An example of Rhizome is:
(A) Onion                    (B) Garlic                    (C) Ginger                   (D) Potato
(35)           How many plants were used by Mendel in his experiments?
            (A) 26,000                   (B) 28,000                   (C) 30,000                   (D) 32,000
(36)           Plants show competition for:
            (A) Space                    (B) Light                     (C) Water                    (D) All of these
(37)           After ripen ovary change into::
            (A) Seed                      (B) fruit                       (C)  flower                  (D) nector
(38)           In which year Dolly Sheep was produced?
            (A) 1991                      (B) 1993                      (C) 1995                      (D) 1997
(39)           The antigens stimulate the immune response in host and produce:
            (A) Toxins                   (B) Antitoxins             (C) Antibodies            (D) None of these
(40)           How many lobes are present in left lung?
            (a) 1                             (b) 2                             (c) 3                             (d) 4

Name: _________________________________      10th: Biology-A                                   Time:2:30 Hours
                                                                                    Marks: 60
Q.2:     Attempt any TEN parts from the following.                                                     (10x2=20)

(i)                 What are the bad effects of smoking on the social life of a person?
(ii)               What are “Goosebumps”?
(iii)             What is gout?
(iv)             What is renal cortex?
(v)               Write names of components of coordinated action.
(vi)             Define short sight?
(vii)           What is hippocampus?
(viii)         What is the function of cilia present in trachea and bronchi?
(ix)             What is the difference between dominant and recessive alleles?
(x)               What is arthritis?
(xi)             Write four characters of insect pollinated flowers.
(xii)           What is hilum?
(xiii)         Define mendel’s law of independent assortment.

Q.3:     Attempt any TEN parts from the following.                                                     (10x2=20)
(i)                 What are pollutants?
(ii)               What are restriction endonucleases?
(iii)             What is a drug?
(iv)             What is the difference between acute and chronic bronchitis?
(v)               Write the chemical composition of urine.
(vi)             What is lithotripsy?
(vii)           What are interneurons?
(viii)         What is grafting?
(ix)             Explain the role of vasopressin.
(x)               How do calcitonin and parathormone complement each other?
(xi)             Briefly describe the osteoporosis.
(xii)           Define insertion.
(xiii)         What do you know about dengue fever?

Q.4:     Attempt any TEN parts from the following.                                                     (10x2=20)
(i)                 What are endospores?
(ii)               Define alternation of generations.
(iii)             What is difference between spermatogenesis and oogenesis?
(iv)             What is the difference between homozygous and heterozygous genotype?
(v)               What are bio-geochemical cycles?
(vi)             Write name of pollutants released by thermal industries.
(vii)           What is a pharmaceutical drug?
(viii)         What is diamorphine? What is its use?
(ix)             What are disinfectants?
(x)               What are the functions of Nitrosomonas and Nitrobacter?
(xi)             What is assimilation?
(xii)           Define artificial selection?

(xiii)         What two situations are faced by leaf cells?

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