Which is a form of active transport?

Proteins open up channels in the cell membrane.

Proteins enter and exit the cell freely.

Proteins create openings on another side of the cell membrane.

Proteins push molecules through the cell membrane.

Question

Which is a form of active transport?

Proteins open up channels in the cell membrane.

Proteins enter and exit the cell freely.

Proteins create openings on another side of the cell membrane.

Proteins push molecules through the cell membrane.

ane · Answer

@JustSaiyan

JustSaiyan · Answer

Proteins enter and exit the cell freely.

ane · Answer

thanks! where were you yesterday?

JustSaiyan · Answer

I was coding a popup menu into my browser, so I turned off my notifications.

ane · Answer

oh 
i needed a lot of help and couldn't find anyone as  smart as you to help me with bio and history

ane · Answer

thanks for coming back :)

JustSaiyan · Answer

You're welcome. I tried to get the questions I missed, but the notifications disappear once they are viewed. :\

ane · Answer

no worries! i figured them out eventually