The gas exchange surface in an earthworm is
The gas exchange surface in an earthworm is Options (a) tracheae (b) gills (c) skin (d) ctenidia Correct Answer: skinExplanation:No…
5 years ago
Biology
The function of leghaemoglobin in the root nodules of legumes is
The function of leghaemoglobin in the root nodules of legumes is: Options (a) inhibition of nitrogenase activity (b) oxygen removal…
5 years ago
The formula of chlorophylla is
The formula of chlorophyll-a is Options (a) C₅₆H₇₀O₆N₄ Mg (b) C₅₅H₇₂O₆N₄ Mg (c) C₅₅H₇₂O₅N₄ Mg (d) C₅₂H₇₀O₅N₄ Mg Correct Answer:…
5 years ago
The form of pigment which promotes germination is
The form of pigment which promotes germination is Options (a) P₇₆₀ (b) P₇₃₀ (c) P₆₅₀ (d) P₇₆₀ & P₇₃₀ &…
5 years ago
The fluid mosaic model of plasma membrane visualizes the central bilayer composed
The fluid mosaic model of plasma membrane visualizes the central bilayer composed of phospholipids with their spherical polar heads Options…
5 years ago
The fluid mosaic model of bio membrane was proposed by
The fluid mosaic model of bio membrane was proposed by Options (a) Watson and Crick (b) Singer and Nicolson (c)…
5 years ago
The fixation and reduction of CO occur in presence of
The fixation and reduction of CO₂ occur in presence of Options (a) ATP (b) ATP and NADPH (c) NADPH, chlorophyll…
5 years ago
The first step of photosynthesis is
The first step of photosynthesis is Options (a) excitation of electron of chlorophyll by a photon of light (b) formation…
5 years ago
The first step in dark reaction of photosynthesis is
The first step in dark reaction of photosynthesis is Options (a) formation of ATP (b) ionization of water (c) attachment…
5 years ago
The first stable product of photosynthesis in C plants is
The first stable product of photosynthesis in C₄ plants is Options (a) phosphoglyceric acid (b) ribulose-1-5-bisphosphate (c) PGAL (d) malic…
5 years ago