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Vadim26 [7]
3 years ago
14

How do sulfonamides treat bacterial infections without harming human cells?

Biology
1 answer:
Nata [24]3 years ago
4 0

Answer:

sulfonamides inhibit the synthesis of folic acid in bacterial cells. Humans obtain it from their diet.

Explanation:

Sulfonamides are the sulfa drugs and serve as a competitive inhibitors of p -aminobenzoate (PABA). PABA is one of the substances involved in the synthesis of folic acid. sulfonamides compete with PABA for the enzyme of folic acid synthesis and thereby, block the pathways. In the absence of folic acid, bacterial growth is inhibited. Human cells can not synthesize folic acid but obtain it from the food they eat. Therefore, sulfonamides do not affect humans.  

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Arrange the following list of eukaryotic gene elements in the order they would appear in the genome and in the direction travele
Leni [432]

Answer:

The alignment of the elements in the following sequence will take place in the eukaryotic genome:  

a. Promoter

b. Nucleotide to which methylated cap is added

c. 5 prime UTR

d. Initiation codon

e. Splice donor

f. Splice branch site

g. Splice acceptor

h. Stop codon

i. 3 prime UTR

j. Transcription terminator

k. Poly A addition site

After the process of splicing, the ultimate transcript will comprise the elements b, c, d, h, i. In eukaryotes, the RNA polymerase begins the process of transcription after it crosses the promoter region, and ceases at the transcription terminator. At the time of RNA processing, a 5 prime cap is supplemented to the transcript, splicing occurs, and a poly-A tail is supplemented. The 5 prime UTR and 3 prime UTR regions are found in the final transcript, that is, the mature RNA, however, are not translated.  

4 0
4 years ago
All cells have _____.
Olin [163]
All cells have all these except chloroplast and cell wall
5 0
4 years ago
During the menstrual cycle, estradiol and progesterone levels increase and decrease under the influence of hormones released by
dezoksy [38]

Answer:

The correct answer is pituitary gland.

Explanation:

The pituitary gland is called the master gland because it regulates the secretion of many other endocrine glands. Pituitary is responsible for the secretion of hormone that regulated the level of estradiol and progesterone during the menstrual cycle.

Anterior pituitary release FSH(follicle-stimulating hormone) and LH(Luteinizing hormone) after it gets stimulation by GnRH secreted by the hypothalamus. FSH help in the production of estrogen by stimulating follicle and LH is responsible for the production of progesterone from corpus luteum. Therefore the correct answer is the pituitary gland.

3 0
3 years ago
Read 2 more answers
4. What was Lamarck's theory of evolution?​
valina [46]
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3 years ago
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Contractions of the small intestine have three functions: mix chyme with digestive juices, allow for
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7 0
4 years ago
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