I am pretty sure that hte answer is A. I am not completely sure, I hope this helps
Answer:
There are techniques to test that if an individual is practicing proper aseptic techniques to ensuring the growth of the pure bacterial colonies. The one of the experimental way to test is as follows:
Leave a Petri plate poured with media at lab, leave it for some time in open. Then incubation of the petri plate for 24 hours.
If bacteria colonies found on the plate, then the aseptic techniques that is following are not proper.
Answer: In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient).
Explanation:
Answer:
D
Explanation:
When a substance moves from low to high concentration it is moving against its concentration gradient, which requires more energy.
A. It depends on where it is moving, not the substance
OB. This is describing diffusion
OC. Does not require energy, it is passive transport through a semi-permeable membrane
Answer:
The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.