STD 11 - 3. Plant kingdom — NEET STD 11 Science — Question

Assertion: Deoxyribonucleoside triphosphates serve dual purposes, in addition to acting as substrates, they provide energy for polymerisation reaction.
Reason: Form DNA strand and its two terminal phosphates in a deoxynucleoside triphosphates are high-energy phosphates, same as in case of ATP.

Gametophyte is the dominant phase in the life cycle of

Puff ball is a

Assertion: Leaf are converted into tendrils for climbing as in pea or into spines for defence as in cacti.
Reason: Leaves are often modified to perform functions other than photosynthesis.

Which of the following is the most important causes for animals and plants being driven to extinction?

Formation of interfascicular cambium from fully developed parenchyma cells is an example for

Systema Naturae was written by

Photosynthesis will proceed upto

Mark the given statements True (T) or False (F).
(i) Growth, reproduction, ability to sense environment are the features of living organisms.
(ii) Early man could easily perceive the difference between inanimate matter and living organisms.
(iii) In majority of higher animals and plants, growth and reproduction are mutually exclusive events.
(iv) Properties of tissues are not present in the constituent cells but arise as a result of interactions among the constituent cells.
(v) Taxonomic categories/taxonomic groups are distinct biological entities and not merely morphological aggregates.
(vi) Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
(vii) Order and other higher taxonomic categories are identified based on the aggregation of characters.
(viii) Herbarium serves as quick referral system in taxonomic studies.
(ix) Couplet represents the choice made between two same options.
This results in acceptance of only one and rejection of the other.
(x) The taxonomic studies of various species of plants and animals are useful in agriculture, forestry, industry and in general for knowing our bio-resources and their diversity.
Choose the correct option given below:-