medical entrance questions

Wednesday, April 9, 2008

103. In biotic community, which one of the following is a protective device ?
A. Competition B. Symbiosis C. Mimicry D. Commensalism E. Parassitism
104. Which one of the following is the sedimentaary cycle ?
A. Oxygen cycle B. Nitrogen cycle C.Hydrogen cycle
D. Phosphorous cycle E. Carbon cycle
105. Animals like cockoaches, lizards andd mice share the buildings of human dwellings.
A. Cultigens B. Transplants C. Inquilines D. Humus E. Pelagice
106. The ozone layer is preset in
A. Thermosphere B. Stratosphere C. Mesosphere
D. Lithosphere E. Troposphere
107. The minamata diseases caused by
A. Mercury B. Nitrites C. CFC D. DDT E. Benzene hexachloride
108. The world Enviornment Day is observed on
A. 5th July B. 15th May C. 5th June D. 15th June E. 5th May
109. Which one of the following is not related to corm ?
A. Nodes B. Internodes C. Scale leaves D. Tunica E. Lateral buds
110. When storage roots occur in clusters from the base of the stem they are called
A. Fascicuted roots B. Nodulose roots C. Annulated roots
D. Beaded roots E. Tuberous roots
111. The leaves without petiole are called
A. Sessile B. Petiolate C. Rachis D. Lamina E. Stipula
112. In plant, the parenchyma composed of cells with large air spaces among them , is known as
A. Aerenchyma parenchyma B. Angular parenchyma C. Loosely arranged parenchyma
D. Stellate parenchyma E. Prosenchyma
113. In a young dicot stem, epidermis is covered by a waxy coating called
A. Waxogen B. Cuticle C. Suberin D. Waxilene E. Periderm
114. During drought condition plant produces a hormone known as
A. Indole acetic acid B. Naphthelene acetic acid C. Abscisic acid
D. Indole butyric acid E. Ethylene
115. The term used to determine the age of tree by counting the annual rings is called
A. Ring determination B. Chronology C. Ageing and development
D. Dendro - chronology E. Counto - chronology
116. In a plant cell , the strinking of protoplasm is called
A. Turgidity B. Flaccidity C. Deplasmolysis D. Plasmolysis E. Apoptosis
117. The thin film of water covering the soil particles and held strongly by atractive forces, is called
A. Hygroscopic B. Run - away C. Gravitational D. Capillary E. Hydrophobic
118. In higher plants, the shape of the chloroplast is
A. Discoid B. Cup- shaped C. Girdle - shaped D. Ribbon- shaped E. Reticulate
119. Who among the following scientists was awarded the Noble Prize in 1960 for tracing the path of carbon
in photosynthesis ?
A. Rubin B. Hatch C. Calvin D. Huber E. Dissenhofer
120. In the higher plants , nitrate ion absorbed from the soil are converted into ammonia in two steps. In
second steps, the electrons required for reduction of nitrite ions are donated by
A. Nitrate reductase B. Ferradoxin C. Nitrate reductase
D. Cytochrome P450 E. Cytochrome b5

1 comment:

Mathi said...

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medical entrance