Which one of the following organelles is involved increasing of plasma membrane?
Options
(a) Golgi complex (b) leucoplast (c) chromoplast (d) microbodies
Correct Answer:
Golgi complex
Explanation:
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A stack of 20-50 thylakoids in a chloroplast forms
Options
(a) the stroma (b) a granum (c) a stroma lamella (d) matrix
Correct Answer:
a granum
Explanation:
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The common oxidation state shown by lanthanides in their compounds is
Options
(a) ⁺1 (b) ⁺3 (c) ⁺5 (d) ⁺6
Correct Answer:
⁺3
Explanation:
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The hydrogen ion concentration in mol/dm, in a 0.2 M solution of a weak acid HA (Ka = 2 x 10⁻⁵) is close to
Options
(a) 2 x 10⁻⁵ (b) 2 x 10⁻⁴ […]
In mammals, milk is digested by
Options
(a) rennin (b) amylase (c) intestinal bacteria (d) invertase
Correct Answer:
rennin
Explanation:
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Intercalary meristem occurs at the
Options
(a) bases of internodes of monocot plants (b) buds of the auxillary leaves (c) apex of dicot stem (d) between the phloem and xylem
Correct Answer:
bases […]
In protozoa like Amoeba and Paramecium, the organ for osmoregulation is
Options
(a) contractile vacuole (b) mitochondria (c) nucleus (d) food vacuole
Correct Answer:
contractile vacuole
Explanation:
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