761 Chlorophylls mainly absorb _________ wavelengths? Biology Medium Full question → A Orange – blue B Violet – red C Yellow – orange D Orange – red.
762 Complete breakdown of glucose molecule takes place in which of the following? Biology Medium Full question → A Alcoholic fermentation B Lactic acid fermentation C Aerobic respiration D All of these
763 Xanthophylls are _________ pigments Biology Medium Full question → A Yellow B Red C Orange D Green
764 Chlorophylls are found embedded in the __________ membranes? Biology Medium Full question → A Stroma B Grana C Thylakoid D Intergrana
765 The dense fluid filled region in the chloroplast is____________? Biology Medium Full question → A Grana B Stroma C Thylakoid D None of these
766 Photosystem II has molecules which absorbs maximum light of___________? Biology Medium Full question → A 680 nm B 100 m C 700 nm D 670 nm
767 In all plants the major sites of phosynthesis are___________? Biology Medium Full question → A Leaves respire and utilize O2 and release CO2. B Stems C Roots D Branches
768 Of the following, which one light – gathering? Biology Medium Full question → A Antenna complex B Reaction centre C Photosystem D None of these
769 Thylakoids in chloroplasts are stacked into___________? Biology Medium Full question → A Grana B Stroma C Nucleus D None of these
770 A smallest contractile unit of muscle contraction called sarcomere is the area between two: Biology Medium Full question → A H- zone B M- Line C Z- Line D A band
771 Gibberellins is an example of_________________? Biology Medium Full question → A Growth inhibitor B Growth stimulator C Growth hormone D None of these
772 Which of the following statements is incorrect about skeletal muscle fibers? Biology Medium Full question → A They are multinucleated. B They are 10 – 100 ?m in diameter & surrounded by sarcolemma C They contain O2 storing molecules called hemoglobin. D Their cytoplasm contains high concentration of carbohydrates
773 Epinasty is controlled by_____________? Biology Medium Full question → A Gibberellins B Abscisins C Auxins D Cytokinins
774 Why skeletal muscles are called striated muscles? Biology Medium Full question → A They appear darker than smooth muscles by naked eye. B Alternating dark and light bands appear on their surface when visualized by naked eye. C Alternating dark and light bands appear on their surface when visualized via a microscope. D All of these
775 Roots of a plant show______________? Biology Medium Full question → A Positive phototropism and negative geotropism B Negative phototropism and positive geotropism C Negative tactic movement and positive tropic movement D Positive geotropism of stem and roots
776 The contraction of which of the following muscle fibers, is controlled by hormones? Biology Medium Full question → A A smooth muscle B A cardiac muscle C A skeletal muscle. D All of these
777 Rapid movement of leaves of mimosa on touching is an example of _____________? Biology Medium Full question → A Turgor movement B Nastic movement C Tropic movements. D Growth movement
778 Which of the following is a uni-nucleated cell? Biology Medium Full question → A A smooth muscle cell. B A cardiac muscle cell. C A skeletal muscle cell. D All of these
779 The place of attachment of leaf with the shoot is called__________? Biology Medium Full question → A Pith. B Pit. C Petiole D Ecdysone
780 Bony callus formation completes in___________? Biology Medium Full question → A 2-3 weeks B 3-4 weeks. C 2-3 months. D 3-4 months.