I. Lysosomes have hydrolytic enzymes.
II. Lysosomes are autophagic.
III. Lysosomes can dissolve proteins, lipids and carbohydrates.
IV. All lysosomes are same structurally and functionally.
Which of the statements given above is/are correct?"
(a) Only I
(b) I and II
(c) I, II and III
(d) All of these
192 Q) Which of the following Vitamin causes a syndrome which is characterized by 3D's namely, dermatitis, diarrhoea and dementia?
(a) Vitamin B,
(b) Vitamin B5
(c) Vitamin B„
(d) Vitamin C
(a) Thymus gland
(b) Thyroid gland
(c) Pancreas
(d) Pitutiary gland
194 Q) "Consider the following statements
I. Double fertilization is a characteristic of Angiosperm.
II. Double fertilization is a characteristic of Gymnosperm.
III. Four nuclei participate in double fertilization.
IV. Five nuclei are participated in double fertilization.
Which of the statements given above are correct?"
(a) I and III
(b) I and IV
(c) II and III
(d) II and rV
195 Q) "Other that resistance to pests, what are the prospects for which genetically engineered plants have been created?
I. To enable them to withstand drought.
II. To increase the nutritive value of the produce.
III. To enable them to grow and do photosynthesis in space ships and space stations.
IV. To increase their shelf life.
Select the correct answer using the codes given below"
(a) I and II
(b) III and IV
(c) I, II and IV
(d) I, II, III and IV
196 Q) The sliding-filament theory of muscle contraction was proposed by
(a) A Pullman and F Pullman
(b) AF Huxley and H E Huxley
(c) AF Huxley and A Sherrington
(d) A Sherrington and HE Huxley
197 Q) The physical basis of life protoplasm was named by
(a) Purkinje
(b) J Huxley
(c) Robert brown
(d) Sherington
198 Q) " Assertion (A) In Rajasthan, dental fluorisis and knock-knee syndromes are very common.
Reason (R) Surface and underground water in this state are contaminated with fluorine."
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
199 Q) Which of the following hormones given below regulate the calcium level in our blood?
(a) Enterokinin
(b) Parathormone
(c) Secretin
(d) Thyroxine
200 Q) Synapsis that is the pairing of homologous chromosome during the meiotic cell division occurrs during
(a) prophase I
(b) prophase II
(c) telophase I
(d) metaphase II
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