× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Biology-Related Homework Help General Biology
New Topic  
Rony02 Rony02
wrote...
Go to Answer
Posts: 494
Rep: 0 0
6 years ago
What does an ABC transporter use to transport larger ions and molecules across the cell membrane?
  a. ATP
  b. water
  c. porins
  d. signals
  e. tunnels

Question 2

Which explanation best describes the asymmetrically oriented structure of the proteins in the cell membrane?
  a. Each type of protein has its own function.
  b. These proteins are manufactured by free ribosomes.
  c. These proteins are initially formed by ribosomes on the rough ER.
  d. These proteins pass through the ER membrane into the ER lumen.
  e. Enzymes are needed to modify the carbohydrate chains on these proteins.
Read 80 times
1 Reply
Replies
Answer verified by a subject expert
amieriveraamierivera
wrote...
#1
Posts: 360
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Rony02 Author
wrote...

6 years ago
this is exactly what I needed
Jadakiss
wrote...

Yesterday
Thanks for your help!!
Turboturner
wrote...

2 hours ago
Thank you, thank you, thank you!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1379 People Browsing
 127 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 268
  
 249
  
 46
Your Opinion
Previous poll results: Who's your favorite biologist?