Answer:
Polar molecules are unable to go across unless they are crossed with the help of the protein channel.
Due to the semi-permeable nature of the plasma membrane polar molecules and molecules with high molecular weight are unable to cross the membrane.
Their transportation across the cell membrane is facilitated by integral transmembrane proteins or carrier proteins which form channels across the membrane.
For example, fructose in the small intestine is transported into the cell with the help of GLUT5 transporter.
Answer:there would be a larger population of producers
Explanation:
Since there needs to be primary consumers, the population of producers needs to be plentiful in order for the primary consumers to survive.
All the domestic breeds of dogs that we are familiar with, from chihuahuas to pit bulls, are the same species: Canis lupus<span> familiaris. In fact, our dogs are a subspecies of </span>Canis lupus<span>, or ->*wolf*<-</span>
Answer: thylakoid membrane
Explanation:
Answer:
All of the choices are correct
Explanation:
A person suffering a generalized bacterial infection has the following desirable general characteristic of antimicrobial drugs such as;
- Selective toxicity
- Bactericidal rather than bacteriostatic - Broad-spectrum of activity.