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    Subject
    Biology

    Class

    NEET Class 12

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    NEET Biology Solved Question Paper 2008

    Multiple Choice QuestionsMultiple Choice Questions

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    21.

    In blood, CO2 is transported majorly as

    • sodium carbonate

    • carboxyhaemoglobin

    • bicarbonate

    • CO2 as such

    C.

    bicarbonate

    In blood CO2 is transported in three different states:-

    1. In dissolved state- 7% of CO2 gets dissolved in the blood plasma and is carried in solution to lungs or about 0.3 mL of CO2 is transported per 100 - mL of blood in dissolved state in blood plasma.
    2. In the form of bicarbonate- About 70% of CO2 (about 2.5 mL per 100 mL of blood), received by blood from tissues, enters the RBCs where it reacts with water to form carbonic acid (H2CO3).
    3. As carbaminohaemoglobin- About 23% of CO2 is transported in combination with haemogloblin and plasma proteins. CO, reacts directly with amine radicals (NH2) of haemoglobin to form an unstable compound carbamino-haemogloblin (Hb. CO5) Sodium bicarbonate act as buffer of blood.

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    22.

    In which of the following, putrefying bacteria is present in?

    • Intestine

    • Colon

    • Stomach

    • Liver

    Answer
    23.

    In Whittaker's system of classification, prokaryotes belong to the kingdom

    • Monera

    • Protista

    • Animalia

    • Fungi

    Answer
    24.

    Which one of the following is a saprophytic bryophyte?

    • Riccia fluitans

    • Buxbaumia aphylla

    • Funaria hygrometrica

    • Sphagnum

    Answer
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    25.

    Iodine is obtained from

    • Laminaria 

    • Chlorella

    • Polysiphonia

    • Porphyra

    Answer
    26.

    Phloem parenchyma is absent in

    • monocot stem

    • dicot stem

    • dicot root'

    • dicot leaf

    Answer
    27.

    In CAM plants, CO2 acceptor is

    • RuBP

    • PEP

    • OAA

    • PGA

    Answer
    28.

    Which one of the following is a natural growth inhibitor?

    • NAA

    • ABA

    • IAA

    • GA

    Answer
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    29.

    Which one is a short day plant?

    • Brassica campestris

    • Raphanus sativus

    • Glycine max

    • Papaver somniferum

    Answer
    30.

    Tetradynamous stamens are found in family

    • Malvaceae

    • Solanaceae

    • Cruciferae

    • Liliaceae

    Answer
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    NCERT Solutions
    Textbook Solutions | Additional Questions

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