InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 12101. |
Question : Segmentally arranged coiled tubules of earthworm function as |
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Answer» RESPIRATORY orgams |
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| 12102. |
Question : Segment of earthworm which donot contain any apertures |
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Answer» segment 2 |
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| 12103. |
Question : Seeds of some plants germinate immediately after shedding from the plants while in other plants they require a period of rest before germination. The later phenomena is called as dormancy. Give the reasons for seed dormancy and some methods to break it. |
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Answer» Solution :Dormant seeds do not germinate for definite time period . That is changed for some days or months. This definite time is called Dormancy period. Reasons for Dormancy : (a) In many plants dormancy SEED coat is impermeable of wate. Eg, Chenopodium, Trigonella, Meliotus are impermeable for Oxygen e.g. Brassica Alba, Pyrus Malus, Apple, Sinapis Arvensis or Chemicals. E.g. impermeable for Xanthium. (b) In many plants seed coat is very hard that is the reason for dormancy that provides mechanical inhibition for embryo development e.g. Capsela, Lapidium. (c) Some seeds produce special types of chemicals like Abscisic acid (ABA) and phenolic acid, comerin, small chained fatty acids etc. which obstruct germination. This inhibitors can be present in fruits also e.g. Ferulic acid in juice of TOMATO fruit, in endosperm (e.g. Xanthium) e.g. Iris or seed coat e.g. Cucurbita. (d) Fallen seeds like WHEAT, Barley, oat etc need a period of rest to be mature and for bearing ability to germinate. During this rest period seeds produce required hormones for germination. Methods to remove Dormancy : (1) Treatment of either heat or cold to make growth of inhabitors inactive. (2) To weaken the hard and impermeable seed coat by mechanical process. (3) Micro ORGANISMS present in soil DECOMPOSE hard seed coat and weaken them. (4) Removes inhabitors by water of rain or irrigation. (5) To let the embryo be mature etc. Methods can be inspired to inspire germination of seed artificially. |
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| 12105. |
Question : Seeds are enclosed by fruit wall or pericarp. |
| Answer» Solution :In angiosperms OVULES form seeds and ovary WALL is CONVERTED into fruit wall. | |
| 12106. |
Question : Seedless fruits can be obtained by spraying(a) gibberellins(b) Auxins(c) cytokinins(d) ethylene |
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Answer» gibberellins |
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| 12107. |
Question : Seed of which plant with long viability was discovered in archeological excavation at king Herod's place near the Dead Sea ? |
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Answer» PHOENIX dactylifera |
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| 12108. |
Question : Seed increase in its volume by the adsorption of water through |
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Answer» OSMOSIS |
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| 12109. |
Question : Seed habit originated in some |
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Answer» Bryophytes |
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| 12110. |
Question : Seed formation without fertilization in flowering plants involves the process of |
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Answer» SPORULATION |
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| 12111. |
Question :Seed formation without fertilisation in flowering plants involves the process of |
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Answer» SOMATIC HYBRIDISATION |
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| 12112. |
Question : Seed dormancy allows the plants to |
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Answer» overcome unfavourable CLIMATIC CONDITIONS |
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| 12114. |
Question : See the folowing diagram after two weeks the apperance of the shoot would be |
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Answer»
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| 12115. |
Question : Seed bearing plants include: |
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Answer» PTERIDOPHYTES and GYMNOSPERMS |
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| 12116. |
Question : See the following figures Figure A and B indicate glands while Figure C indicates specific type of tussues, Identify A, B, and C |
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Answer» `{:("A",B,C),("Unicellular GLAND","Goblet gland","PSEUDOSTRATIFIED epithelium"):}` |
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| 12118. |
Question : Secretory tissues that secrete proteolytic enzymes are found in |
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Answer» NEPENTHES |
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| 12119. |
Question : Secretion of which of the following is under control of neurosecretory nerve cells? |
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Answer» Pineal |
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| 12120. |
Question : Secretionof progesterone by corpus luteum is initiated by |
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Answer» testosterone |
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| 12121. |
Question : Secretion of which gland regulates oxidation and ATP formation. |
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Answer» Somatotropic HORMONE |
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| 12124. |
Question : Secretion of gastric juice is inhibited by gastrin/enterogasterone hormone. |
| Answer» SOLUTION :ENTEROGASTERONE | |
| 12125. |
Question : Secretion of pancreatic juice is stimulated by |
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Answer» GASTRIN |
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| 12126. |
Question : Secretion of gastric juice is controlled by .......... . |
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Answer» Enterogesterone |
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| 12127. |
Question : Secretin stimulates production of ……….. . |
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Answer» Saliva |
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| 12128. |
Question : Secretin hormone is produced by ………… . |
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Answer» STOMACH |
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| 12129. |
Question : Secretin is produced by |
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Answer» duodenum |
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| 12130. |
Question : Secretin and cholecystokinin are digestive hormones. They are secreted in |
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Answer» oesophagus |
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| 12131. |
Question : Secretin and cholecystokinin are digestive hormones. These are secreted by(a) oesophagus(b) ileum(c) duodenum(d) pyloric stomach |
| Answer» Solution :duodenum | |
| 12132. |
Question : Secretin |
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Answer» Stimulates enzyme secretion by PANCREAS, inhibits ACID secretion in stomach,stimulates gall bladder |
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| 12133. |
Question : Secretin and Cholecystokinin are digestive hormone. They are secreted in ........... |
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Answer» PYLORIC STOMACH |
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| 12134. |
Question : Secondary phloem remains functional generally |
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Answer» for ONE year |
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| 12135. |
Question : Secondary growth of the plant is characterized by |
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Answer» INCREASE in LINEAR growth |
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| 12136. |
Question : Secondary growth is usually absent in |
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Answer» DICOT ROOT and Dicot STEM |
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| 12137. |
Question : Secondary growth in Dicot root occurs with the help of |
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Answer» Lateral MERISTEM, PRIMARY meristem, SECONDARY meristem |
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| 12138. |
Question : Secondarygrowthis absent in………….. |
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Answer» Gymnosperms |
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| 12139. |
Question : Secondary growth involves activity of the....... meristem. |
| Answer» SOLUTION :LATERAL | |
| 12140. |
Question : Secondary growth does not occur in monocot stems because(a) Scattered(b) Open(c) Close(d) Radial |
| Answer» Solution :Monocotyledonous STEMS NORMALLY do not have SECONDARY GROWTH DUE to the absence of vascularcambium. | |
| 12142. |
Question : Secondary growth commonly occurs in |
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Answer» Gymnosperms and Angiosperms |
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| 12143. |
Question : What is meant by secondary growth ? Explain formation of cambial ring. |
| Answer» Solution :In most of the dicot plants, after COMPLETION of primary GROWTH DUE to formation of secondary tissue, the INCREASE in girth is called secondary growth. | |
| 12144. |
Question : Second mollar, two in number ………….. . |
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Answer» INTERCELLULAR |
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| 12145. |
Question : Sebaceous glands : |
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Answer» help keep the skin SOFT |
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| 12146. |
Question : Sea weeds belongs to |
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Answer» GREEN ALGAE |
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| 12147. |
Question : Sea Weeds are a main source of |
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Answer» Chlorine |
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| 12148. |
Question : Sea weeds are important source of |
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Answer» chlorine |
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| 12149. |
Question : Sea urchin and sea cucumber belong to Phylum ............. |
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Answer» |
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| 12150. |
Question : Sea cucumbers belong to class …………………. . |
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Answer» Echinoidea |
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