This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What are the advantages of having cell membranes that contain phospholipids rather than just ... (Read 77 times)

Bernana

  • Hero Member
  • *****
  • Posts: 530
on: Aug 20, 2018
What are the advantages of having cell membranes that contain phospholipids rather than just lipids?

Question 2

Age-related loss of lean body mass causes:
 a. total energy requirements to increase.
  b. total energy expenditure to remain the same.
  c. basal metabolism to decrease.
  d. basic energy metabolism to increase.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Aug 20, 2018
Answer to Question 1

Phospholipids are amphipathicthey contain both nonpolar and polar portions. In this way, phospholipids can interact with water or other hydrophilic substances on their polar end and hydrophobic substances such as lipids on the other end (fatty acid portion). They can form a bilayer that acts as a barrier between the inside and outside of the cell (because of the hydrophobic interior) but still allows communication between the inside and outside (because of the hydrophilic exterior).

Answer to Question 2

c


Bernana

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Aug 20, 2018
Thank you!


31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Aug 20, 2018
Always glad to help...


« previous next »
 

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

General structure of an animal cell General structure of an animal cell
The Eukaryotic Cell The Eukaryotic Cell
the four stages of the cell cycle the four stages of the cell cycle
Eukaryotic cell without labels Eukaryotic cell without labels
Spectral karyotype of cell Spectral karyotype of cell
cell 2 cell 2
Video: Physiology of Asthma

For a complete list of videos, visit our video library