Why do water molecules need a channel protein to help them get through the membrane? a) They are too cohesive (stick together) to pass through the membrane

b)They are too large to pass through the membrane

c)They are too attracted to the polar phosphate heads, they cannot pass through

d) They are repelled by the hydrophobic core (fatty acids) of the membrane, cannot get through.

please hel!

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day

Which is a function of vascular tissue? a. to perform photosynthesis b. to transport water and nutrients c. to absorb minerals and sugar d. to interact with soil fungi