Which one of the following is widely distributed in a cell
Options
(a) DNA (b) RNA (c) Chloroplast (d) Chromoplast
Correct Answer:
RNA
Explanation:
RNA is present both inside and outside the nucleus
Which one of the following hormone induces flowering?
Options
(a) auxin (b) florigen (c) cytokinins (d) gibberelin
Correct Answer:
florigen
Explanation:
The chemical which induces flower formation has been named as florigen. By […]
Which one of the following elements is necessary for the translocation of sugars in plants
Options
(a) Iron (b) Manganese (c) Molybdenum (d) Boron
Correct Answer:
Boron
Explanation:
Boron is highly essential for […]
Which one of the cell organelles is not enclosed by any membrane?
Options
(a) lysosome (b) ribosome (c) mitochondria (d) plastid
Correct Answer:
ribosome
Explanation:
Ribosomes are naked ribonucleoprotein protoplasmic particles which function […]
Which of these statements is incorrect?
Options
(a) Oxidative phosphorylation takes place in outer mitochondrial membrane (b) Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms […]
Which of the following microorganism is the smallest living cell without cell wall
Options
(a) virus (b) Archaebacteria (c) Mycoplasma (d) Eubacteria
Correct Answer:
Mycoplasma
Explanation:
Mycoplasmas are ” A genus of aerobic to facultatively […]
Which of the following yield ATP during contraction of muscles?
Options
(a) myoglobin (b) creatinine phosphate (c) haemoglobin (d) myosin
Correct Answer:
creatinine phosphate
Explanation:
Creatine phosphate is a phosphagen, which is a […]
Which of the following with respect to early experiments of photosynthesis is wrongly matched?
Options
(a) Joseph Priestley- Showed that plants release O₂ (b) Jan Ingenhousz – Showed that sunlight is essential for […]
Which of the following water is available to plants?
Options
(a) hygroscopic water (b) capillary water (c) both hygroscopic water & capillary water (d) gravitational water
Correct Answer:
capillary water
Explanation:
After gravitational […]
Which of the following vein has least amount of urea
Options
(a) Pulmonary vein (b) Hepatic portal vein (c) Hepatic vein (d) Renal vein
Correct Answer:
Renal vein
Explanation:
Least concentration of urea […]
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