Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Which of he following categories of plants have halophytic traits tolerate high salinity. Marine hydrophytes Xerophytes Halophytes Mesophytes
2 Phloem tissue compromosses of. Companion cells Sieve elements Phloem fibres All of above
3 Which statemetn chaacterizestension in TACT theory Negativepressr ecreated  by pulling force for continous flow of water Attractive force betwen water and xylem walls attractive force between water molecules Both a and c
4 Which statement about the Marine hydrophytes is not true. Thrive in saline conditions Expel water through hydathodes Excrete salts by special glands Retain water
5 In which type of environment the nete movement of water btween the cell and the environment is zero. Isotonic Hypotonic Hypertonic  Distilled water
6 If a cell is placed in a solutin having high solute concentration relative to the intracellular envrionement of cell,, what happens after sometime. Swelling of cell Shrinking of cell Busting of cell Cell remain unasffected
7 A solution having reduced solute concentration relative to the intracellular environment of a cell is called. Hypotonic environment Hypertonic environment Isotonic environemnt None of these
8 The process by which an organism maintains a stable internal equilibrium of water and dissolved substance is. Osmoregulation Thermoregulation  Excretion  Rspiration 
9 Ethylene is a natural product of metabolism of plants which Promotes flowring in pineapple Inhibits fruit ripening Promotes seed dormancy All of above
10 Which statemetn is correct about ABA Promotes flowrerig in pineapples Promotes flowring in short-day plants and inhibits in long day plants Promotes bolting in rosette plants Promotes apical dominance
11 Cytokinins are characterized by  Promote cytokinesis during cell division  Increase rae of DNA replicaions Antagonist to gibberellins Both a and b
12 Which of the following platn growth regulator promotes bolting of rosette plants. gibberellic acid Indole acetic acid Cytokinins Ethene
13 The scientific method of dating and studying tree rings is called. Histology Geronotology Dendrochronology Teratology
14 Cambium is highly active during. Spring Winter Autumn Summer
15 Xylem and pholem are generated by  Cambium Cork Apical meristem Intercalary meristem
16 The early wood is also called. Spring wood Late wood Winter wood Autumn wood
17 Annual rings are formed in plants due to the seasonal activity of....................layer. Cambium Epidermis Measophyll Pillferous
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