|
Column I |
|
Column II |
(a) |
Chlamydomonas |
(iii) |
Algae |
(b) |
Cycas |
(iv) |
Gymnosperm |
(c) |
Selaginella |
(ii) |
Pteridophyte |
(d) |
Sphagnum |
(i) |
Moss |
Mention the ploidy of the following:
protonemal cell of a moss;
primary endosperm nucleus in dicot,
leaf cell of a moss;
prothallus cell of a fern;
gemma cell in Marchantia;
meristem cell of monocot,
ovum of a liverwort, and
zygote of a fern.
Which 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.
Describe the structure of the following with the help of labelled diagrams.
(i) Nucleus
(ii) Centrosome
How are polysaccharides and disaccharides digested?
Nice
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