Which of the following is correct:
(a) Cells of all living organisms have a nucleus.
(b) Both animal and plant cells have a well defined cell wall.
(c) In prokaryotes, there are no membrane bound organelles.
(d) Cells are formed de novo from abiotic materials.
1 AnswerMatch the following
Column I Column II
(a) Cristae (i) Flat membranous sacs in stroma
(b) Cisternae (ii) Infoldings in mitochondria
(c) Thylakoids (iii) Disc-shaped sacs in Golgi apparatus
1 AnswerNew cells generate from
(a) bacterial fermentation (c) pre-existing cells (b) regeneration of old cells
(d) abiotic materials
1 AnswerWhich of the following is not correct? (a) Robert Brown discovered the cell. (b) Schleiden and Schwann formulated the cell theory. (c) Virchow explained that cells are formed from pre-existing cells. (d) A unicellular organism carries out its life activities within a single cell.
1 AnswerDraw a neat diagram of digestive system of frog.
1 AnswerMention the function of the Ureters in frog.
1 AnswerDescribe the internal structure of a dorsiventral leaf with the help of labelled diagrams.
1 AnswerHow is the study of plant anatomy useful to us?
1 AnswerName the three basic tissue systems in the flowering plants. Give the tissue names under each system.
1 AnswerWhat is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
1 Answer
RimaRimaSourav PanSourav PanSourav PanSourav PanSourav PanSourav PanSourav PanSourav PanEarn points by:
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