Which of the following are phagocytic or cytotoxic or inflamatory cells ? (a) Macrophages,(b) Mast cells, (c) NK cells, (d) Eosinophils , (e) Basophils, (f) Monocytes, (g) Neutophils.

The DNA content of individual cells and the number of cells in each phase of a cell cycle" can be determined using flow cytometry. Which of the following combinations of "phase of a cell cycle and its corresponding DNA content" can be considered normal? (i) Diploid cells found in the G_(0) or G_(1) phase. (ii) Cells with twice the normal DNA content in the early M phase. (iii) Cells with twice the normal DNA content in the G_(2) phase.

State whether the following statements are True (T) or False (F): The discharge equation of a cell is E=V - Ir.

The diagram shows the structure of a fungal cell with different parts labelled as A,B,C and D. Which of the following statements are true with regard to the fungal cell structive? (i) A contains mucopolysaccharides which are also present in exoskeleton of insects and crustaceans. (ii) D are usually more than one in number in case of aseptate hyphae. (iii) Carotenes and xanthophylls are present in C, which harvest light energy for photosynthesis. (iv) B is the reverse food material, usually stored in the form of starch and oil.

State whether the following statements are True (T) or False (F): The charging equation of a cell is V= E + Ir.

Write notes on any three of the following each write two to three important points. (a) Net primary productivity (b) Morphological adaptations in xerophytes (c ) Layering (d) Pollen-pistil interaction (e ) Tertiary treatment of sewage water ,br> (f) Transcription unit

Which of the following statements regarding the ethical argument for conserving biodiversity is incorrect? (a) We owe to millions of plant, animal and microbes species with whom we share this planet (b) Every species has an intrinsic value only when it is of an economic value to us. (c) It is our moral duty to care for the well-being of all species i.e., our biological legacy. (d) All of these

Which of the following are the reason (s) for Rheumatoid arthritis ? Choose the correct option. (i) The ability to differentiate pathogens or foreign molecules from self cells increases. (ii) Body attacks self cells. (iii) More antibodies are produced in the body. (iv) The ability to differentiate pathogens or foreign molecules from self cells is lost.

Which of the following fish led to the extinction of an ecologically unique assemblage of more than 200 species of cichild fish in the lake Victoria of E.Africa ? (a) Catla catla (b) Dog fish (c) Nile perch (d) African catfish

Deduce from the following E^@ values of half cells , what combination of two half cells would result in a cell with largest potential : (i) A^(3-) rarr A^(2-) + e^- , E^@=1.5 V (ii) B^(2+) +e^- rarrB^+ ,E^@ =-2.1V (iii) C^(2+)+e^- rarrC^+,E^@=+0.5V (iv) DrarrD^2 +2e^-,E^@=-1.5V