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
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 .

You might be interested in
The snapping turtle shown above, lives in a small farm pond where its major prey is largemouth bass. In turn, the bass primarily
sattari [20]

Answer:

The answer is C, 40,000.

Explanation:

You can obviously tell that 400 is too low... that's one meal for all of the turtles! They would need 40,000 minnows because it's a stable number. They can reproduce, and keep the population up. 4,000, though, is too low because they wouldn't have enough time to reproduce and continue to keep the population alive. Therefore, 40,000 should be a stable population.

8 0
3 years ago
Read 2 more answers
How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem
Allushta [10]

Answer:

They use them so that they can see what type of organisms live there.

Explanation:

4 0
3 years ago
How has globalization resulted in increasing environmental damage around the world?
beks73 [17]
I would say A.
 B and C can be eliminated because they have to do with using resources more efficiently. Now we're down to A and D, and of the two, I'd say A is most plausible. Globalization is the connection of the world with each other. With all this technology, companies see endless possibilities to sell their products. They use more and more natural resources, which can deplete those resources quickly.
6 0
3 years ago
Read 2 more answers
How to do this please need help
Maslowich
Can you take a closer picture please.
6 0
3 years ago
scientific explanarions are based on empirical data and evidence. which of the following is not a scientific idea
svet-max [94.6K]
Genetic drift scientific explanarions are based on empirical data and evidence
7 0
3 years ago
Other questions:
  • Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns all contained within the coding region. In w
    6·1 answer
  • What experimental evidence led to the development of this atomic model from the one before it? A few of the positive particles a
    15·1 answer
  • Which organism is an animal-like protist?<br> cilia<br> dinoflagellates <br> amoeba<br> truffle
    7·2 answers
  • transfer RNA with the bases CGA will line up with a section of messenger RNA with the bases _________
    5·2 answers
  • Why are autosomal genetic disorders usually recessive
    9·1 answer
  • Which of the following individuals made the healthiest choice?
    15·2 answers
  • What process is necessary to change a sedimentary rock to a metamorphic rock
    11·2 answers
  • What does a cell copy in dna replication?
    6·1 answer
  • PLSSS HELP GIVING BRAINLIEST
    12·2 answers
  • HEEEEEELP. PLEASEEEEEEEEEEEEE
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!