« previous next »

Author Question: What is responsible for erythrocyte deformability and maintaining cell shape? a. Membrane ... (Read 60 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
on: Jun 25, 2018
What is responsible for erythrocyte deformability and maintaining cell shape?
 
  a. Membrane proteins
  b. Na+ and K+ pump
  c. Membrane lipids
  d. Ca2+ pump

Question 2

What important function does 2,3-BPG perform?
 
  a. Maintains iron in the hemoglobin molecule in the ferrous state
  b. Prevents oxidative injury to the red cell
  c. Facilitates the delivery of oxygen to tissue
  d. Aids in the exchange of membrane lipids with lipids in plasma


amit

  • Sr. Member
  • ****
  • Posts: 364
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: A
Proteins in the membrane are responsible for maintaining the shape and deformability of the red cell. Cation pumps maintain the Na+ and K+ gradient within the red cell. Membrane lipids form the fluid foundation into which the membrane proteins are inserted. The Ca2+ pump maintains intracellular levels of Ca2+.

Answer to Question 2

ANS: C
2,3-BPG plays a critical role in the effective transport of oxygen to tissue. It is produced via a shunt off the EMP. Elevations in 2,3-BPG are seen in a number of situations such as anemia; they result in more effective delivery of oxygen to tissue. It has no role in the other functions listed.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Plant Cell (Blank Labels) Plant Cell (Blank Labels)
Leaf Cell Leaf Cell
Cell division protein FtsN Cell division protein FtsN
The basic unit of life - cell The basic unit of life - cell
Schematic drawing of a rod cell Schematic drawing of a rod cell
Surfaces of Epithelial Cells and the Basement Membrane Surfaces of Epithelial Cells and the Basement Membrane
Video: Knee Animation

For a complete list of videos, visit our video library