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1. The roots that originate from the base of the stem are(a) Fibrous root(b) Primary roots (c) Prop roots(d) Lateral roots
2. Tap root system is found in(a) wheat (b) mustard (c) grass (d) Monstera
3. Select the group of plants that possess stilt roots(a) Rhizophora, Hedera (b) Pandanus, Ficus (c) Ficus, Pisum (d) Zea mays, Rhizophora
4. _______develops from the plumule of the embryo of germinating seed(a) Axillary bud (b) Petiole (c) Stem(d) Root
5. _______are the green stems of limited growth which have taken over the function of photosynthesis from leaves.(a) phylloclades (b) Cladodes (c) phyllodes (d) Stem thorn
6. In Opuntia, the function of photosynthesis is carried out by.(a) cladode (b) phyllode (c) phylloclade(d) stipules
7. Sweet potato is a modified(a) stem(b) Adventitious root (c) Tap root (d) rhizome.
8. The region of the stem where leaves are borne are called ______and ______are the portions between two_____(a) Nodes, nodes and internodes (b) nodes, internodes and nodes (c) internodes, nodes and nodes (d) internodes, internodes and nodes
9. The given figure shows the regions of root tip with labelling as A, B and (c) Choose the option which shows the correct labelling of A, B anda) A-Zone of elongation, B-Zone of meiosis, C Zone of mitosis. b) A Zone of maturation, B Zone of meristematic activity, C-Zone of elongation. c) A-Zone of mitosis, B-Zone of elongation, C Zone of root cap. d) A-Region of maturation, B- Region of elongation, C -Zone of meristematic activity.
10. What type of growth are seen in roots(a) phototropic (b) ascending growth (c) geotropic (d) against gravity
11. What part of the stem are modified for support and climbing called tendrils(a) nodes (b) axillary bud (c) terminal bud(d) shoot apex
12. Pneumatophore are found in(a) Rhizobium(b) leguminous plants (c) Rhizophora (d) maize
13. Who proposed Theory of Biogenesis?(a) Mendel (b) Pasteur (c) Morgan (d) Aristotle
14. Amino acids found in Miller and Urey experimenta) Alanine, glycine, aspartic acid b) Alanine, valine, aspartic acid c) Valine, glycine, proline d) Valine, glycine, leucine
15. Tendrils of cucurbits and thorns of bougainvillea are example ofa) Homologous organ b) Analogous organ c) Natural selection d) Adaptive radiation
16. Remains or impression of hard parts of ancient organisms are preserved in which type of rocks(a) Any type of rocks (b) Igneous (c) Metamorphic(d) Sedimentary
17. When selective pressures select against two extremes of a trait, the population experiencesa) Disruptive selection b) Directional selection c) Stabilising selection d) Adaptive radiation
18. In Miller and Urey experiment, the ratio of Ammonia: Methane: Hydrogen is(a) 2:1:2 (b) 2:2:1 (c) 1:2:2 (d) 1:2:1
19. Wooly Mammoth found deep frozen in Siberia ice is(a) Unaltered fossil (b) Petrified fossil (c) Coprolites (d) Mould fossil
20. Embryological support for evolution was proposed by(a) Darwin (b) Von baer (c) Pasteur (d) Haeckel