This topic contains a solution. Click here to go to the answer

Author Question: How many pyrrole rings are there in a porphyrin structure? A. 5 B. 4 C. 2 D ... (Read 45 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
How many pyrrole rings are there in a porphyrin structure?
 
  A. 5
  B. 4
  C. 2
  D 1

Question 2

The globin portion of hemoglobin in normal adult humans is composed of which two amino acid chains?
 
  A. Two alphas, two betas (2, 2)
  B. Three betas, three deltas (3, 3)
  C. Two deltas, two betas (2, 2)
  D. Two sigmas, two gammas (2, 2)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nyrave

  • Sr. Member
  • ****
  • Posts: 344
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 55% of students answer this correctly




Shelles

  • Member
  • Posts: 582
Reply 2 on: Jun 25, 2018
YES! Correct, THANKS for helping me on my review


meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

For a complete list of videos, visit our video library