Because the membrane is selective in what can cross through it, it

larger molecules and substances moving against the concentration gradient must be moved through the membrane

some of the membrane proteins have carbohydrate receptors attached to cells in recognize each other certain molecules. one role of peripheral proteins can be to act as anchors for some integral proteins aid in integral proteins that move molecules through the membrane are also .

1) semipermeable

2) active transfer

3) glycoproteins

4)

5)

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse