Answer:
1. this process continues until the substance is evenly distributed in a system.
2. depends on the cell membrane!
3. Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane.
Explanation:
1. The passive forms of transport, diffusion and osmosis, move materials of small molecular weight across membranes. Substances diffuse from areas of high concentration to areas of lower concentration
2. passive transport depends on the permeability of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane lipids and proteins. The four main kinds of passive transport are simple diffusion, facilitated diffusion, filtration, and/or osmosis.
3. Facilitated diffusion is a type of passive transport. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient
Hopes this helps :)
The smaller parts are molecules.molecules are so small that there in everything.they multiply like crazy they plot in half grow then split in half again.Theres about 1,000,000,000,000,000 in our body
Which statement below BEST summarizes the role of the DNA molecule in cells. The answer is C.
Answer: Valine
Explanation:
hemoglobin A (normal) is HbA, while hemoglobin S (present in people with sickle cell anemia) is HbS
A sequence of 146 amino acids is present in the Hemoglobin.
The first 6 amino acids in HbA are: valine, histidine, leucine, threonine, proline, and glutamic acid.
The first six amino acids in HbS is:
valine, histidine, leucine, threonine, proline, and VALINE
In Hbs, the 6th amino acid (Glutamic acid) has already been mutated to Valine, a nonpolar, branched amino acid.
Text me I can helping really good at them and there easy once you get the hang of it
