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

Author Question: Why is the mature erythrocyte unable to synthesize proteins or lipids? a. It has no nucleus. b. ... (Read 51 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Jun 25, 2018
Why is the mature erythrocyte unable to synthesize proteins or lipids?
 
  a. It has no nucleus.
  b. It has no ribonucleic acid (RNA).
  c. It cannot generate adenosine triphosphate (ATP).
  d. Carrying oxygen interferes with synthesis.

Question 2

Which of the following erythrocyte activities requires energy?
 
  a. Oxygen delivery
  b. Carbon dioxide exchange
  c. Glucose transport into the RBC
  d. Protecting proteins from oxidative damage


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

braelync

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: A
The mature red cell no longer has a nucleus, mitochondria, and other organelles. It is therefore unable to synthesize proteins or lipids. It also cannot perform oxidative phosphorylation.

Answer to Question 2

ANS: D
Energy is required to protect proteins in the red cell from oxidative damage. This includes hemoglobin and membrane proteins. It is not required for oxygen transport, carbon dioxide exchange, or glucose transport into the cell.


fbq8i

  • Member
  • Posts: 527
Reply 2 on: Jun 25, 2018
Wow, this really help

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

How genes produce proteins that determine traits in a simple dominant-recessive relationship. How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Some functions of proteins Some functions of proteins
In some species, dominant females have more surviving offspring that mature earlier indicating an ad In some species, dominant females have more surviving offspring that mature earlier indicating an ad
Acute Phase Proteins Acute Phase Proteins
Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins
A few ribosome-inactivating proteins A few ribosome-inactivating proteins
Video: Introduction to Herpes

For a complete list of videos, visit our video library