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sweet [91]
2 years ago
15

A scientist discovers that a soil bacterium he has been studying produces an antimicrobial that kills gram-negative bacteria. Sh

e isolates and purifies the antimicrobial compound, then chemically converts a chemical side chain to a hydroxyl group. When she tests the antimicrobial properties of this new version, she finds that this antimicrobial drug can now also kill gram-positive bacteria. The new antimicrobial drug with broad-spectrum activity is considered to be which of the following?
resistant
semisynthetic
synthetic
natural
Biology
1 answer:
scoray [572]2 years ago
3 0

Answer:

semisynthetic

Explanation:

Broad spectrum antibacterials are active against the Gram-negative and Gram-positive organisms.  

For example phenicols,  tetracyclines .

Semisynthetic drugs -

As known as the partial chemical synthesis , it is a type of chemical synthesis that uses chemical compounds which are isolated from any natural source .

Semisynthesis is a cheaper method , as the initial substance is extracted from nature and rest few steps require chemical , which make it cheap and quicker process of drug synthesis .

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Write a characteristics of a gay person​
stiks02 [169]

Answer:

There aren't specific characteristics that make a person gay or not because everyone is different.

7 0
2 years ago
A roasted chicken multigrain sandwich contains 42 g protein, 7 g fat, and 34 g carbohydrates. How much energy does the sandwich
Andrei [34K]

1 -

Calories per gram of:

Fat = 9

Charbohydrates ≈ 4

Proteins ≈ 4

So, now we do the math:

34g of charbohydrates equals 34*4g of calories, therefore, 136.

7g of fat equals 7*9g of calories, therefore, 63.

42g of protein equals 42*4g of calories, therefore, 168

136 + 168 + 63 = 367 grams

Answer:

367 grams of calories in the chicken multigrain sandwhich.

2 -

First let's see what does indigestible mean:

Indigestible means that the body does not digest that substance, it is eaten, and released. No modification happens to it.

Which of the components below are indigestible:

The only indigestible food component mentioned in exercise 2 is fiber. Fiber, which provides from plants, is not digestibe by the body.

Answer:

Fiber.

3 -

This is not my area of expertise, but I must say, it's kind of obvious that the deficiency the patient suffers is vitamin C deficiency.

In a vitamin C deficiency, patients suffer from things such as the ones mentioned in the question.

Answer:

Vitamin C.

Image 1 -

During photosynthesis, protons build up in the thylakoid lumen/space. The left-overs of this building-up are then conduced to the stroma where they generate ATP.

Answer:

Thylakoid lumen.

Image 2 -

Just with the salmon fillet, he has already eaten enough vitamin B12, more than 100% of the recommended daily allowance. The amount of vitamin E of the salmon fillet was low, and the amount of vitamin C was null.

The boiled green beans gave him quite a lot of the vitamin C he needs, but not enough. The vitamin E that the boiled green beens provided was also not enough. The amount of vitamin B12 was null.

The sliced strawberries where enough to back up the lack of vitamin C of the boiled green beans, but not enough to back up the lack of vitamin E. The amount of vitamin B12 was null.

Math:

If we do the math needed, we see that Robert only had enough vitamin B12 and C, and that he needed way more vitamin E.

Answer:

B. - Vitamin B12 and C only.

Hope it helped,

BioTeacher101

5 0
3 years ago
Read 2 more answers
"a client with osteoarthritis purchased a copper bracelet to wear and tells the nurse that there is less pain now. which respons
xenn [34]
Copper bracelets and magnetic wristbands are used relieve pain in people with arthritis. Studies conducted on these devices show that they have no efficacy on pain or on stiffness, two of the most characteristic symptoms of arthritis. Although there is no medical data to support the efficacy of the copper bracelet, the patient is not harmed or endangered by wearing it. Therefore, the nurse should respect the fact that the patient is feeling better, but he/she should urge the patient to continue with its prescribed medication. 

5 0
3 years ago
Help please I need this I don’t understand
garik1379 [7]

i dont understand too:(

3 0
3 years ago
Read 2 more answers
11) The diagrams show the developing embryos and the adult forms of various types of animals with backbones.
sukhopar [10]

Answer:

C

Explanation:

Looking at each embryo at the begining you can tell they are very similar, in fact its almost impossible to tell the difference. this tells us that they have a common ancestor because the orignal cells of the embryos are so similar

4 0
2 years ago
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