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

Author Question: How do carotenoids have vitamin A activity? ... (Read 24 times)

soccerdreamer_17

  • Hero Member
  • *****
  • Posts: 552
How do carotenoids have vitamin A activity?

Question 2

Cellular waste products must be readily excreted in order for the body to remain healthy. The waste products that accumulate can be actively excreted by all of the following organs except:
 
 A. the kidneys.
  B. the lungs.
  C. the skin.
  D. the hair.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

medine

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

Some carotenoid compounds can be converted to vitamin A.
Beta-carotene is a good example: When vitamin A is needed,
the human body can convert one molecule of beta-carotene
into two molecules of vitamin A (retinal). Supplementing the
diet may be appropriate when consumption of nutrients in
foods cannot meet a person's nutrient requirements. These
conditions might include:
 periods of rapid growth or when consequences of
normal aging make it difficult to consume adequate
amounts of food,
 following a weight-loss diet,
 a health condition that increases nutrient requirements,
 limited food access, and
 a vegan lifestyle.

Answer to Question 2

D




soccerdreamer_17

  • Member
  • Posts: 552
Reply 2 on: Aug 20, 2018
Great answer, keep it coming :)


DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Excellent

 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

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.

For a complete list of videos, visit our video library