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In a plasma membrane, which of the below provides a general barrier to the movement of molecules?
a) Lipids
b) Proteins
c) Carbohydrates
d) all of these
Answer: a - lipids
PROTOPLAST Cell without cell membrane (Henstein) It contains 1 or more vacuoles. In mature plant cells protoplast forms a peripheral layer called Primordial utricle.
Features of Estuaries The physicochemical properties of the estuaries have large variation in several parameters and this often creates stressful environment for organisms. T
The nucleus comprise the genetic information of cell. In addition to activities which maintain the cell, nucleus creates copies of itself for new protozoans by either asexual repro
The F2 phenotypic ratio from a dihybrid cross with epistasis was 9:3:4. If instead of a dihybrid cross, a double heterozygote was test crossed (crossed to a homozygous recessive in
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Acetylcholine, a well known neurotransmitter, plays a critical synaptic role in the initial formation of memory. Chemical blockage of the acetylcholine receptors makes it harder to
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