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Home⇒ Everyday Science GK⇒ General biology
Note:- You can add tough questions into your favourite list for second revision. |
Q41 ⇒ Plants absorb dissolved nitrates from soil and convert them into free nitrogen [other wrong options] [Discuss in forum] urea ammonia proteins |
Q42 ⇒ Most abundant tissues of our body are connective [other wrong options] [Discuss in forum] muscular epithelial nervous |
Q43 ⇒ Oreleased in the process of photosynthesis comes from water [other wrong options] [Discuss in forum] CO2 sugar pyruvic acid |
Q44 ⇒ Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to gymnosperms [other wrong options] [Discuss in forum] angiosperms monocotyledons dicotyledons |
Q45 ⇒ Night blindness is cause by lack of which vitamin? Vitamin A [other wrong options] [Discuss in forum] Vitamin B Vitamin C Vitamin D |
Q46 ⇒ Plants wilt due to excess of transpiration [other wrong options] [Discuss in forum] photosynthesis absorption None of these |
Q47 ⇒ Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of enzymes [other wrong options] [Discuss in forum] hormones proteins vitamins |
Q48 ⇒ Prokaryotic cells lack All of these [other wrong options] [Discuss in forum] nucleolus nuclear membrane membrane bound by organelles |
Q49 ⇒ Prothrombin which helps in clotting of blood is released by blood platelets [other wrong options] [Discuss in forum] lymphocytes erythrocytes monocytes |
Q50 ⇒ Radical vascular bundles are those in which xylem and phloem occur on the different radii [other wrong options] [Discuss in forum] xylem is surrounded by phloem phloem is surrounded by xylem xylem and phloem occur on the same radius |
Q51 ⇒ Mumps is a disease caused by virus [other wrong options] [Discuss in forum] fungus bacterium None of these |
Q52 ⇒ Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with only conifers [other wrong options] [Discuss in forum] all gymnosperms, except conifers only angiosperms angiosperms and all gymnosperms except conifers |
Q53 ⇒ Placenta is the structure formed by the union of foetal and uterine tissue [other wrong options] [Discuss in forum] by foetus only by fusion of germ layers None of these |
Q54 ⇒ Monocot root differs from dicot root in having well developed pith [other wrong options] [Discuss in forum] open vascular bundles scattered vascular bundles radially arranged vascular bundles |
Q55 ⇒ Mutation is a change that is inherited [other wrong options] [Discuss in forum] a factor responsible for plant growth a change which affects the offspring of F2 generation only a change which affects the parents |
Q56 ⇒ Pollination is best defined as transfer of pollen from anther to stigma [other wrong options] [Discuss in forum] germination of pollen grains growth of pollen tube in ovule visiting flowers by insects |
Q57 ⇒ Pollination by wind is called anemophily [other wrong options] [Discuss in forum] hydrophily zoophily entomophily |
Q58 ⇒ Rain water helps to increase the ____ to some extent. calcium contents [other wrong options] [Discuss in forum] phosphorous contents nitrogen contents potash contents |
Q59 ⇒ Myopia is connected with eyes [other wrong options] [Discuss in forum] ears lungs None of these |
Q60 ⇒ Plant bends towards the source of light on account of the movement of curvature known as phototropism [other wrong options] [Discuss in forum] geotropism thigmotropism chemotropism |
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