Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. biology
  3. why do ions have a difficult time getting through

Why do ions have a difficult time getting through plasma membranes despite their small size? How...

80.2K

Verified Solution

Question

Biology

  1. Why do ions have a difficult time getting through plasmamembranes despite their small size? How are ions transportedthrough biological membranes?
  2. Where does the cell get energy for active transportprocesses?
  3. Describe the position of the transition state on a verticalenergy scale, from low to high, relative to the position of thereactants and products, for both endergonic and exergonicreactions. How do enzymes affect the energy of the reactants,product, and transition state.
  4. Do you think that the EA for ATP hydrolysis isrelatively low or high? Explain your reasoning.

  1. Explain in your own words the difference between a spontaneousreaction and one that occurs instantaneously, and what causes thisdifference.
  1. Nearly all organisms on Earth carry out some form ofglycolysis. How does this fact support or not support the assertionthat glycolysis is one of the oldest metabolic pathways?

  1. What is the primary goal of glycolysis and the citric acidcycle (think about what is being produced and what it is usedfor)?
  2. Why is it important to have regulatory control over metabolicpathways like glycolysis?

Answer & Explanation Solved by verified expert
4.4 Ratings (718 Votes)
1 Ions have specific charge so are hydrophilic So they cannot associate with the hydrophobic membrane components and do not cross the plasma membranes easily Ions require special channels or transporters for transport across plasma membranes 2 Active transportation of components occurs against the concentration gradient which requires pumps The energy required for such transportation is obtained from ATP 3 The transition state is always at a higher energy    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Generate a noisy image by adding salt and pepper noise to a clean image (try to...

Electrical Engineering
Q

After pyruvate is formed it must either be converted to another molecule to enter the...

Biology
Q

The period of oscillation of a simple pendulum of length L suspended from the roof...

Physics
Q

Establish the identity cos x sin x 1 2 sin x Using the identity sin...

Basic Math
Q

Question 11 of 11 Step 1 of 1 7 15 Correct Answer How to enter...

Algebra
Q

nts possi Question 13 Solve the equation for the requested variables f vp g q...

Algebra
Q

For comparison reasons, why is standardization of costs used?...

Accounting
Q

Golden Wedding Dress Company designs custom wedding dresses for brides to be the person preparing...

Accounting
Q

In this COVID Pandemic Era, many SMEs (especially food and beverage sector) must face loss...

Accounting
Q

Which of the following is not an employee payroll tax? options: ...

Accounting
Q

firm 1 net income of $1000 and paid out 70 in dividends. what was the...

Accounting
Q

A stock has an expected return of 10.4 percent, the risk-free rate is 3 percent,...

Finance