781 Which of the following cells are involved in soft callus formation? Biology Medium Full question → A Fibroblast and osteoblast. B Osteoblast and osteoclast. C Osteoclast and osteocyte D Onteocyte and osteoblast
782 Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of ____________? Biology Medium Full question → A Chemotropic movement B Chemotactic movement C Chemosastic movement D Haptonastic movement
783 A fracture hematoma has____________? Biology Medium Full question → A Healing properties. B Destructive properties. C Neutralizing properties. D Dead cells
784 Vascular Cambium initially appears as actively dividing cells between_________________? Biology Medium Full question → A Primary Xylem and secondary xylem. B Primary xylem and secondary phloem. C Primary xylem and primary phloem D Secondary xylem and secondary phloem.
785 If two ends of fractured bone are opened and kept united via screws and wires drilled in bone substance. This step in fracture repair is called___________? Biology Medium Full question → A Open reduction. B Closed Fixation. C Open fixation. D Immobilization
786 Which of the following statements about fractures in old age is incorrect? Biology Medium Full question → A They are more common than in adult age. B Occur as a result of bone being thin and weak. C Due to good blood supply it results in quick healing. D It involves osteoblasts and osteocytes.
787 An increrase in plant girth due to activity of _____________ is called secondary growth? Biology Medium Full question → A Cork cambium B Pith. C Vascular cambium. D Both a and c
788 Which of the following statement about osteoporosis is incorrect. Biology Medium Full question → A It results from estrogen deficiency. B Bone eating process takes over bone formation process. C There is reduction of bone mass and change in chemical composition of the matrix D It is common in old age.
789 Among the followings which is the most longest supportive cell? Biology Medium Full question → A Tracheids B Sclereids C Trachea D Collenchyma cells
790 Which of the follwing is a childhood disease resulting from nutritive Ca2+ deficiency? Biology Medium Full question → A Hypocalcaemia Tatanic spasms. B Osteomalacis. C Rickets. D Tetany
791 Secondary cell wall of sclerenchyma cells is impregnated with_________________? Biology Medium Full question → A Cellulose. B Peptidoglycan and murein. C Lignin. D Pectin.
792 Which of the following hormone is predominantly responsible for bone weakening in older women? Biology Medium Full question → A Progesterone. B Oestrogen. C Parathyroid hormone. D Calcitonin.
793 In which of the following joint muscles are arranged in the same plane as that of joint? Biology Medium Full question → A Between radius and ulna. B Between ulna and scapula C Between humerus and scapula D Between femur and tibia.
794 Higher turgor pressure in a plant cell is maintained by________________? Biology Medium Full question → A Large number of vacoules in a plant cell. B Higher ionic concentration inside vacuoles resulting from active pumping of ions at their tonoplastic membrane C Higher osmotic pressure of the cell vacuole D both b and c
795 Fibrous capsule surrounding synovial joints may be thickened at some places to form: Biology Medium Full question → A Synovial membrane. B Ligaments. C Muscles. D Tendon
796 Joint between two parietal bones, which is infact immovable one is an example of_________? Biology Medium Full question → A Fibrous joints. B Cartilaginous joints. C Synovial joints. D None of these
797 Which of the following plays the major role in providing support to young herbaceous parts of the plant? Biology Medium Full question → A Living cells of epidermis with higher turgor pressure. B Living cells of cortex and pith with higher turgor pressure. C Collenchyma cells D All of these
798 A joint formed between humerus, radius and ulna is an example of__________? Biology Medium Full question → A Immovable joint. B Slightly movable joint. C Freely movable joint. D Fibrous joint
799 Vocal cords are stretched across_______? Biology Medium Full question → A Larynx B Pharynx C Golttis D None of these
800 In most birds air sacs are ____________ in number? Biology Medium Full question → A 10 B 3 C 4 D 9