12. Rank the following molecules in their ability to freely diffuse across the membrane (from 1-...
12. Rank the following molecules in their ability to freely diffuse across the membrane (from 1- likely to 4- very unlikely)
Large uncharged polar molecules, hydrophobic molecules, small uncharged polar molecules, ion.
Homework Answers
1. Hydrophobic Molecules
2. Small Uncharged Polar Molecules
3.Large Uncharged Polar molecules
4. Ions
Please refer to
Lodish, Molecular Cell Biology, 4th edition
Add Answer to:
12. Rank the following molecules in their ability to freely
diffuse across the membrane (from 1-...
A molecule is found to be able to diffuse across a membrane. Which of the following...
A molecule is found to be able to diffuse across a membrane. Which of the following characteristics would best describe this molecule? Question options: hydrophobic negatively charged polar neutral hydrophilic
Question 1 (1 point) Of the following, which type of molecule moves directly across a membrane...
Question 1 (1 point) Of the following, which type of molecule moves directly across a membrane at the slowest rate? Large polar molecules, such as glucose Proteins and other macromolecules Small, uncharged polar molecules, such as water lons, such as chloride (CI)
Which of the following molecules may diffuse freely through a phospholipid bilayer? please select two answers-...
Which of the following molecules may diffuse freely through a phospholipid bilayer? please select two answers- -asparagine, an amino acid with a large, hydrophilic side chain -alanine, an amino acid with a small, hydrophobic side-chain -testosterone, a steroid hormone -fructose, a monosaccharide molecular oxygen (O2)
Question 11 (1 point) of the following, which type of molecule moves directly across a membrane...
Question 11 (1 point) of the following, which type of molecule moves directly across a membrane most easily? Large polar molecules, such as glucose Small, uncharged non-polar molecules such as 02. lons, such as chloride (CI) Proteins and other macromolecules
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
Figure 1 represents a plasma membrane and molecules present on either side. Figure 1. A...
Figure 1 represents a plasma membrane and molecules present on either side.
Figure 1. A model of a plasma membrane demonstrating selective permeability
(a) Describe the biological need for cells to be surrounded by a membrane that is selectively permeable for different materials.
(b) Explain how the model shows selective permeability of the membrane to specific ions.
(c) Describe the characteristics of the phospholipid bilayer that permit small hydrophobic lipid molecules to pass directly across the membrane.
(d)...
can someone explain what I did wrong? Partial Question 6 0.2/1 pts Rank the following types...
can someone explain what I did wrong?
Partial Question 6 0.2/1 pts Rank the following types of molecules on the rate at which they will cross a lipid bilayer (1 - Fastest....... 5 - Not at all) lons or charged molecules Large non polar molecules Large polar molecules Small non polar molecules Small polar molecules
How do FAs of different carbon lengths cross into the mitochondrial matrix for oxidation? 1) Small...
How do FAs of different carbon lengths cross into the mitochondrial matrix for oxidation? 1) Small FAs of 10 carbons or fewer can freely diffuse through the membrane. 2) Large FAs are cleaved into two smaller units that are actively transported across the membrane. 3) A membrane-bound transferase catalyzes the conversion of long-chain FAs to FA-carnitine esters, which are transported across the membrane via a specific carrier. 4) The breakdown of large FAs starts outside the matrix, allowing for smaller...
Which of the following molecules would be most likely to cross the cell membrane without assistance...
Which of the following molecules would be most likely to cross the cell membrane without assistance from embedded proteins? potassium ion (K+) sodium ion (Na+) Vitamin D. a fat soluble vitamin glucose
1. How does the cell membrane affect homeostasis (i.e., actively maintaining a stable internal en...
1. How does the cell membrane affect homeostasis (i.e., actively maintaining a stable internal environment) in the cell? (select ALL accurate statements) A) the cell membrane prevents charged ions, and (most) large, polar molecules from entering B) the cell membrane allows some molecules to enter freely C) the cell membrane prevents nonpolar molecules from entering the cell D) the cell membrane is a selective barrier 2. The cell plasma membrane has integral and peripheral proteins in the phospholipid bilayer. These...
Question 1 (1 point) Of the following, which type of molecule moves directly across a membrane at the slowest rate? Large polar molecules, such as glucose Proteins and other macromolecules Small, uncharged polar molecules, such as water lons, such as chloride (CI)
Question 11 (1 point) of the following, which type of molecule moves directly across a membrane most easily? Large polar molecules, such as glucose Small, uncharged non-polar molecules such as 02. lons, such as chloride (CI) Proteins and other macromolecules
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
Figure 1 represents a plasma membrane and molecules present on either side.
Figure 1. A model of a plasma membrane demonstrating selective permeability
(a) Describe the biological need for cells to be surrounded by a membrane that is selectively permeable for different materials.
(b) Explain how the model shows selective permeability of the membrane to specific ions.
(c) Describe the characteristics of the phospholipid bilayer that permit small hydrophobic lipid molecules to pass directly across the membrane.
(d)...
can someone explain what I did wrong?
Partial Question 6 0.2/1 pts Rank the following types of molecules on the rate at which they will cross a lipid bilayer (1 - Fastest....... 5 - Not at all) lons or charged molecules Large non polar molecules Large polar molecules Small non polar molecules Small polar molecules
Which of the following molecules would be most likely to cross the cell membrane without assistance from embedded proteins? potassium ion (K+) sodium ion (Na+) Vitamin D. a fat soluble vitamin glucose
Most questions answered within 3 hours.
-
Calculate the number density of argon gas at a temperature of
24C and a pressure of...
asked 2 hours ago -
Alternative
Classification
How to Estimate
Probabilities from Data? ( For continuous Attributes)
And How to generate...
asked 2 hours ago -
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 3 hours ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 4 hours ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 5 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 5 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 5 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 6 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 6 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 6 hours ago -
Project management question:
Name 3 different types of resources (hint: humans are one
type)
asked 6 hours ago -
Consider the following reaction: C 2H 2( g) + 2H 2( g) C 2H 6(
g)...
asked 6 hours ago