Answer:
During <u><em>vegetative propagation</em></u>, a new plant grows from parts of the parent plant.
During<u><em> mitosis</em></u> , a new plant grows from parts of the parent plant.
Explanation:
<em>Asexual reproduction can be described as a type of reproduction in which only one parent is involved and the daughter cells formed are identical to the parent cell.</em>
In vegetative propagation, a vegetative part of the plant such as roots, shoots etc are taken and grown separately. A new plant arises from these parts of the plant.
Mitosis is a type of asexual reproduction in which only a single cell undergoes division to produce two new daughter cells which have the same genetic makeup as the parent cell.
Haploid number of chromosomes
Calcium
Vitamin D
Vitamin K
Phosphorus
vitamin C
Answer:
They are opened either by the binding of ligands or by changes in electric potential across the membrane
Explanation:
Ion channels are the integral membrane proteins that form pores or holes for the transport of specific ions, such as potassium ions (K+), Na+, etc. Most ion channels are selective and allow only a single type of ion to pass through. These ion channels facilitate the diffusion of ions down the concentration gradient and do not require ATP.
Ion channels are mostly gated. Some ion channels open in response to change in the concentration of ions and electric charges across the membrane. Some ion channels open and close in response to the binding of specific molecules called a ligand. For example, binding of two molecules of acetylcholine to the receptor on the motor endplate of a neuromuscular junction opens an ion channel in the ACh receptor through which Na+ can flow across the membrane.
