Questions and Answers

Agar-agar commonly used in bacterial cultures and medication is obtained from A. Sargassum B. Gelidium C. Ulothrix D. Ulva

A component of the cytoskeleton is A. Microtubule B. Bone C. Chitin D. Cartilage

Abscisic acid causes A. Faster leaf fall B. Dormancy of buds and seeds C. Retardation of growth D. All of the above

How are sieve tubes different from sieve cells? A. Being shorter B. Being dead C. Lacking Nuclei D. Having sieve pores at end walls

Arrange the following in a logical sequence. Renal veins Renal arteries afferent arteriole Efferent arteriole Glomerulus (pathway of blood through the glomerulus).

What are beta cells of pancreas?

Adenoids are functional up to the age of (a) 4 years (b) 10 years (c) Adolescence (d) 20 years

A nail is driven in a stem of mango tree 2 meters above the ground. How much height is attained by the nail after 5 years? A) 3 meters B) 5 meters C) 10 meters D) Nail remains at same height i.e. at 2 meters

Acoelomate animal with protandrous nature is (a) Ascaris (b) Schistosoma (c) Taenia (d) Megascolex

______ and ______ pairs of ribs are called floating ribs.