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Vera_Pavlovna [14]
4 years ago
8

The addition of acetyl groups to histones is associated with

Biology
2 answers:
anygoal [31]4 years ago
6 0
The addition of acetyl groups to histones is associated with chromatin condensation and and higher levels of gene expression
Scorpion4ik [409]4 years ago
5 0
Hi there,
The addition of acetyl groups to histones is associated with decondensation at higher levels

Hope this helps :))

~Top 
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Trace minerals are needed in much smaller amounts than major minerals, but they are just as essential for good health. They are
kow [346]

Answer:

1. Heme iron is found in animal foods like meat and poultry, whereas the nonheme iron form is found in plant foods like grains and vegetables.

2. The metal and trace mineral copper is part of several enzymes and proteins.

3. Adequate zinc is important for maintaining a healthy immune system and may aid in wound healing.

4. Selenium acts as an antioxidant and aids in thyroid function.

5. Fluoride is not considered essential, but it is very important for maintaining strong, healthy teeth.

6. The deficiency disease goiter was much more common before iodine was added to salt in the United States.  

7. Manganese acts as a cofactor for a variety of enzymes and also plays a role in synthesis of bone.

Explanation:

  • Iron: The major difference between the iron provided by animals Heme Iron) and plants (Nonheme iron) is that the heme iron is better absorbed by the organism. There are several mechanisms in the intestine that improve the heme iron absorption that is used for producing red globules for the organism. Carnic products such as red meat, fish, and poultry are rich in heme iron. Vegetables contain nonheme iron, which is harder to assimilate by the organism and thus its absorption is lower.
  • Copper: Is an essential element for life that intervenes in the electronic transport chain, being part of the IV complex. It is also part of the enzyme that catalyzes the decomposition of the superoxide ion, toxic for living organisms. Copper is an element of the hemocyanin which is a protein present in some invertebrates, with a function similar to hemoglobin.
  • Zinc: This metal has many uses in industry. In health, it is used in dietetic supplements, to maintain its correct levels. It is also useful in wound healing, in reducing duration and severity of colds, and has antimicrobial properties that help to relieve gastroenteritis symptoms. It is added in solar protectors, in toothpaste for good breath, and in the shampoo to deal with dandruff problems.
  • Selenium: It is an antioxidant component of some enzymes that act in the elimination of substances with reactive oxygen. Besides this element is important in the regulation of the thyroid function.
  • Fluoride: Although it lacks if metabolic activity in mammals and superior plants, some plants and marine sponges can synthesize a fluor compound as a poison for protection. Fluoride is used in many kinds of toothpaste because it interacts with calcium to create a harder and more stable fluorapatite matrix that protects the teeth.
  • Iodine: Is an essential element that intervenes in numerous functions in the organism. The only entranceway of the element is by ingesting it with a recommended diet. Iodine lack might cause several problems in health such as thyroid problems or goiter.
  • Manganese: This metal is an essential element that exists naturally in the ground and water. For animals, the manganese is an essential component of enzymes that are used in carbohydrates, fat, and protein metabolism. Manganese is a cofactor for numerous enzyme activities. It is also important in bony tissue development and reproduction.

3 0
3 years ago
Based on the previous passage, what is the best synonym for appraise?
Mamont248 [21]
Assess, evaluate, estimate, judge are some i can think of.
Hope i helped :)
8 0
3 years ago
What was the first enzyme used for industrial purposes
yulyashka [42]

Answer:

The first clear recognition of enzymes came in 1833 when scientists discovered that an alcohol precipitate of malt extract contained a thermolabile substance that converted starch into sugar. They called the substance diastase. We now know that this was an enzyme that we call amylase.

Explanation:

5 0
3 years ago
Help pls
Ilya [14]

Answer: The Independent Variable

Explanation:

A good way to remember is the I in Independent. <em>I can change this, I control this</em>

(Ex. Different rose bushes are grown in a greenhouse for 2 months. The number of roses on each bush is recorded at the end of the experiment.

  • Independent Variable - Type of roses
  • Dependent Variable - # of flowers
  • Controlled Variable - Most natural/common rose bush)
7 0
2 years ago
Clara, while vacationing in Italy, decided to go swimming. When she asked at what temperature the pool was kept, she was told th
lara [203]

Answer:

96.4

Explanation:

The answer is at the top

5 0
3 years ago
Read 2 more answers
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