1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepladder [879]
2 years ago
9

Choose the correct order of steps for the synthesis of Vitamin D.

Biology
1 answer:
n200080 [17]2 years ago
4 0

Answer:

The correct answer will be option-

1. UV light strikes the skin and converts a steroid molecule into an inactive form of vitamin D.

2. Inactive vitamin D is transported to the liver where it is modified.

3. Vitamin D is activated under the influence of PTH.

4. Inactive, chemically altered vitamin D is transported to the kidneys.

Explanation:

Vitamin D is a fat-soluble metabolite which helps maintain the health of the bone by maintaining the calcium homeostasis.

The vitamin D is synthesized mainly in the liver and kidney from the biologically inactive precursor of vitamin D called ergocalciferol and Cholecalciferol.

The inactive vitamin is synthesized in the skin when the skin is exposed to UV rays.  The UV rays convert the 7-dehydrocholesterol, a steroid molecule to Vitamin D3, This inactive vitamin is then transported to the liver where it is converted to 25-hydroxyvitamin D.

This vitamin D form is further metabolized in the kidney controlled and regulated by the Parathyroid glands.

You might be interested in
Which of the following correctly describes Photosynthesis?
dangina [55]

Answer:b

Explanation: b is correct

3 0
3 years ago
A human fingernail has a hardness of approximately 2.5. Which mineral is softer than a finger nail. A. calcite B. gypsum C. apat
denis23 [38]
According to the 2011 Earth Science Reference Table, Selenite Gypsum has an approximate hardness of 2.

The hardness of calcite is 3.

The hardness of apatite is 5 according to the Moh's hardness scale.

The hardness of diamond is 10.
3 0
3 years ago
Read 2 more answers
An object has a kinetic energy of 32 J and a mass of 36 kg, how fast is the object moving?
marin [14]

Answer:

1.33 m/s

Explanation:

The formula for Kinetic Energy is given as:

K.E=\frac{1}{2} mv^{2} \\

Where, m is the mass and v is the velocity of the object. In order to tell how fast is the object moving we need to calculate its velocity.

Re-arranging the above equation and isolating v, we get

2 K.E = mv^{2}\\\\v^{2} = \frac{2 K.E}{m}

Putting values in this equation, we get:

v^{2}=\frac{2 \times 32}{36}\\\\ v^{2}=\frac{16}{9}\\\\ v=\frac{4}{3}\\\\  v=1.33

Thus, the object is moving with a velocity of 1.33 m/s

7 0
2 years ago
A ligand can bind to two receptors, A and B. The Kd for receptor A is 0.001 nM and the Kd for receptor B is 1 nM. Based on the e
Pavlova-9 [17]

Answer:

The answer is: Receptor A because the ligand concentration is greater than the Kd.

Explanation:

Receptor A because the ligand concentration is greater than the Kd., because the conformation of a receptor protein composes the functional state. Ligands include substrates, inhibitors, activators, and neurotransmitters. So, Affinity is a measure of the strength of attraction between a receptor and its ligand.

5 0
2 years ago
(True or False) The process of DNA replication results in a copy of the original DNA molecule.
Blababa [14]

Answer:

True

Explanation:

It does result in a copy of the original molecule

4 0
3 years ago
Read 2 more answers
Other questions:
  • A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their
    10·1 answer
  • Why does it make sense that muscle cells would be the best adapted to carry out fermentation?
    9·1 answer
  • What is the process by which plants convert carbon dioxide into energy-rich carbon compounds ?
    7·1 answer
  • Through which tissue do sugars get transported to reach the leaves during growth and reproduction?
    9·2 answers
  • Please answer fast<br> difference between fish and frog on the habitat and structure of heart
    12·1 answer
  • What represents the presence of the rehesus protein on blood
    9·2 answers
  • Help please! Thank you &lt;3
    8·1 answer
  • Which of the following statements accurately denotes the frequency of expression of dominant and recessive traits?
    13·1 answer
  • Will make brainliest if you subscribe to janathion loran https://screenshare.host/B7N8NT
    12·1 answer
  • Describe an experiment that would allow you to determine if it is warmer inside or outside the playhouse by using two similar cu
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!