In the large intestine.
Acts as a gland by synthesizing vitamin A.
The skin plays a crucial role in synthesizing vitamin D from sunlight. When the skin is exposed to sunlight, a compound called 7-dehydrocholesterol in the skin is converted into vitamin D3. This process is essential for maintaining healthy levels of vitamin D in the body, which is important for bone health and immune function.
Vitamin K is made from bacteria from the intestine.
Bacteria that live in animal intestines primarily belong to the domain Bacteria. Within this domain, many of these microorganisms are classified under the phylum Firmicutes and Bacteroidetes, which are essential for digestion and maintaining gut health. These intestinal bacteria play a crucial role in breaking down complex carbohydrates and synthesizing vitamins.
Bacteria in the large intestine can produce important vitamins for the body. For example, some bacteria produce vitamin K from eating fiber. Some bacteria also produce vitamin D.
Shortest answer, no. Vitamin K is a vitamin.
There are 4 forms of vitamin D, and the important ones are synthesized by the reaction between UV rays and cholesterol in our skin. Vitamin K2 is synthesized in the guts by bacteria. Vitamin B3 Niacin is synthesized in small amounts by gut bacteria. Vitamin B5 Pantothenic Acid is synthesized in small amounts by gut bacteria. Vitamin B7 Biotin is synthesized in small amounts by gut bacteria. Vitamin B9 Folic Acid is synthesized in small amounts by gut bacteria. Vitamin B12 is synthesized in the guts by bacteria.
The Colon
Vitamins are substances which are not produced by the body, and therefore are necessarily obtained from the diet.
Produce vitamin k and vitamin b
B. because intestinal bacteria produce vitamin K.
Depends on the bacteria. For example, bacteria E. Coli is needed for production of vitamin K.