Biology Chapter 13

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                        CHAPTER NO. 13                                BIOLOGY                     1ST PART

1)       Lenticels, which are involved in gaseous exchange, are present in
         a)       Parenchyma         b)       Collenchyma   c)           Cork               d)       Epidermis
2)       Epiglottis has a muscularly controlled action
         a)       Ball-like          b)       Tube-like         c)       Golf-ball like  d)          Hinge like
3)       Nasal cavities are lined with mucous membrane of ciliated tissue
         a)       Endothelium   b)            Myothelium        c)       Myocardium         d)       Epithelium
4)       In diving mammals, which of the following binds extra oxygen.
         a)       Haemocyamin                                   b)       Haemoglobin
         c)       Myoglobin                                     d)       Iron
5)       Which is not the cause of allergic reaction in Asthma patients
         a)       Pollen             b)       Spores            c)       Cold               d)       Warm weather
6)       Small amount of Carbon dioxide is also ca                 ied by corpuscles combined with
         a)       Potassium          b)       Magnesium         c)       Sodium             d)       Chloride
7)       Air does not enter the lungs from oral cavity or nasal passage via
         a)       Epiglottis         b)       Glottis           c)       Trachea            d)       Bronchi
8)       In cockroach, lining of Trachea is made up of
         a)       Cutin              b)       Cuticle           c)       Chitin             d)       Cartilage
9)       Tiny thin walled ducts instead of alveoli which are open at both ends are called
         a)       Bronchi            b)       Parabronchi       c)       Bronchiole         d)       Larynx
10)      Blood contains                                 oxygen   per   100   ml   of   blood   when   hemoglobin   is   98%
         saturated
         a)       17.6 ml            b)       18.6 ml           c)       19.6 ml            d)       16.6 ml
11)      Glottis is the opening of
         a)       Bronchus           b)       Trachea           c)       Voice box          d)       Nose
12)      Which can stay in the depth of the ocean for about two hours without coming up for air
         a)       Panguin            b)       Cetaceans         c)       Dolphins           d)       Whales
13)      In peroxisomes, glycolate is converted into                                through a series of reactions
         a)       Alanine            b)       Glycine           c)       Serine             d)       Leucine
14)      In cockroach, main tracheae divide and subdivide forming very fine thin walled tubes called
         a)       Trachea            b)       Bronchi           c)       Tracheoles         d)       Bronchioles  
15)      Which can least withstand anoxia.
         a)       Heart              b)       Kidney            c)       Lungs              d)       Liver
16)      When blood leaves the capillary bed most of carbondioxide is in the form of
         a)       Carbonate ion                                 b)       Bicarbonate ion
         c)       Carbonic acid                                 d)       All of these
17)      What is the amount of carbondioxide per 100 ml of blood in venous blood in men.
         a)       54 ml              b)       50 ml             c)       04 ml              d)       98 ml
18)      What percentage of lung cancer is caused by smoking
         a)       60%                b)       70%               c)       80%                d)       90%
19)      How many compounds of tar of tobacco smoke are involved in causing cancer
         a)       10                 b)       12                c)       14                 d)       15
20)      In plants which is not involved in transport of gases
         a)       Stomata in leaves                             b)       Stomata in young stem
         c)       Xylem Tissue                                  d)       Both a and b
21)      What is the number of stomata present in tobacco plant
                              2                           2                          3                        3
         a)       1200 / cm         b)       12000 / cm        c)       12000 / cm       d)       1200 / cm
22)      Aquatic plants obtain their oxygen from dissolved oxygen in water by
         a)       Facilitated diffusion                        b)       Diffusion
         c)       Active Transport                             d)       Osmosis
23)      The inflated air sacs act as                           in birds and send air into parabronchi
         a)       Drums             b)       Tubes             c)       Cylinders         d)       Bellows
24)      In man, which membrane is stretched across into two thin edged fibrous bands called vocal cords
         a)       Endothelial       b)       Myothelial        c)       Pericardial       d)       Mucous
25)      Diving mammals, in relation to their body weight as compared to non-divers have volume of blood
         a)       Double            b)       Triple            c)       Equal             d)       Half
26)      Large dust particles are trapped in human nostrils by which of the following  
         a)       Bone              b)       Hairs             c)       Mucous            d)       Both b and c
27)      It  is  basically  matignant  tumor  of  potentially  unlimited  growth  that  expands  systemically  by
         metastasis.
         a)       Cancer            b)       Invasion          c)       Carcinoma         d)       Both a and c
28)      Lungs are covered with double layered thin membranous sacs called
         a)       Peritonium        b)       Pericardium       c)       Pleura            d)       Endothelium
29)      Casparian strips are not wrong for
         a)       Root endodermis cells                        b)       Cortex cells of stem
         c)       Cells of Pericycle                           d)       Cells of Phloem
30)      Value of which potential is always negative
         a)       Osmotic potential                            b)       Water potential
         c)       Pressure potential                           d)       All of these
31)      Shrinkage of the protoplast due to exomosis of water is called
         a)       Imbibition                                   b)       Plasmolysis      
         c)       Bleeding                                     d)       Incipient plasmolysis
32)      Pressure flow theory was proposed by
         a)       Van Mohl          b)       Ernst munch    c)          Dixon             d)       Sacks
33)      The roots bear a dense cluster of tiny hair like structures which are extensions of cells called
         a)       Endodermal cells                             b)       Epidermal cells
         c)       Cortex cells                                 d)       Pericycle cells
34)      In plants, xylem water tension is strong enough to pull water upto
         a)       200 feet          b)       400 feet          c)       600 feet          d)  More than 600 feet
35)      Passive uptake of minerals by root cells occurs by the process called
         a)       Active transport                             b)       Imbibition
         c)       Diffusion                                    d)       Osmosis
36)      Of the total transpiration by a plant, lenticular transpiration is
         a)       5 – 7%            b)       1 – 2%            c)       90%               d)       80 – 95%
37)      Maximum water potential is achieved when a cell is placed in
         a)       Salt water        b)       Pure water        c)     Distilled water     d)       Either b or c
38)      By every rise of 10C in temperature, rate of transpiration
         a)       Doubles           b)       Slows             c)       Triples           d)       Ceases
39)      Which are directly involved in transport of organic solutes
         a)       Phloem tissue                                b)       Companion cells
         c)       Parenchyma cells                             d)       Sieve tube cells
40)      Photosynthetic products from mesophyll and palisade layer of leaf, pass into sieve tubes through
         companion cells via
         a)       Vacuoles          b)       Cell walls        c)   Plasmodesmata         d)       All of THESE