Log in
Biology
1
answer
1
watching
1,442
views

Two part question:

a. What two structural characteristics of cell membranes determine whether substances can pass through them passively? b. What determines whether or not a substance can be actively transported through the membrane?

Watch
1
answer
1
watching
1,442
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Avatar image
Liked by 1915202708659765
Sixta Kovacek
Sixta KovacekLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

1. Identify and explain the property of cellulose membranes and cell membranes that allows some substance to pass through the membrane, while other substances cannot.

2. What do we call the state in a system when net diffusion has stopped?

1. predict the direction of water movement based on differences in solute concentrations. Use the terms osmotic pressure, hypotonic, isotonic, and hypertonic
2. Why do membranes have to be selectively permeable?

3. What determines whether a particular substance can diffuse (simple or facilitated) through a membrane?

4. What mechanisms drive molecules across membranes? Use the terms concentration gradient, (facilitated) diffusion and active transport.
5. Which parts of the plasma membrane proteins do you expect to be hydrophobic or hydrophilic? Justify your answer.
concise and short answers pls

What roles do membranes play in a cell?

What are cell membranes composed of?

What is a lipid? What are some examples of lipids? What does amphipathic mean?

What are the structure properties of triacylglycerols and steroids?

What are the structural properties of phospholipid and detergents? What arrangements do phospholipids, detergents, and a combination of phospholipids and detergents tend to take in solution?

What type of movements phospholipids undergo in a membrane? What type of movements do they not do?

What determines membrane fluidity?

Where are membranes formed in the cell? How is membrane asymmetry created and maintained? What are flippases and scramblases? Where do they function?

What is the spatial arrangement of a membrane during transport?

What are the different classifications of membrane proteins and what secondary structures are commonly found in transmembrane proteins?

What is the cell cortex?

What are membrane domains? What are different ways of establishing them?

What is FRAP? How does it work?

What is the carbohydrate layer? What are its functions? What is a lectin?

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in