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4 years ago

Pepsin enzymes can then digest dietary ____________ in the lumen of the stomach

1 answer:

6 0

Pepsin enzymes can then digest dietary proteins in the lumen of the stomach. Pepsin in a protease digesting the proteins into smaller peptides. It is produced by the chief cells of the stomach in the form of a proenzyme called pepsinogen. A proenzyme or a zymogen is basically inactive and needs a biochemical change to become an active enzyme. This biochemical change is brought about by the acidic environment of the stomach by the secretion of the hydrochloric acid by the parietal cells in the stomach lining.

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Welke soort cellen zitten er veel in de oranje gekleurde delen?

Lunna [17]

Answer:

Deze soort plastide komt veel voor in de cellen van bloemen of vruchten met een rode, oranje of gele kleur. Plastiden kunnen van het ene type overgaan in het andere type plastiden.

4 0

2 years ago

Which of the following is an example of a biological system?

AVprozaik [17]

Examples:

Respiratory System, (I think) Organ System, Circulatory System, Nervous System, etc.

6 0

3 years ago

Below is a sequence from a template strand of DNA. Write the sequence of the mRNA that would be transcribed from this. Be sure t

Ksju [112]

Answer:

In the transcription of DNA to mRNA, for the DNA sequence 3'-AGGTCTCAC-5' corresponds to an mRNA sequence 5'-UCCAGAAGUG-3'.

Explanation:

Transcription is the process by which a strand of mRNA, needed to direct protein synthesis in the cytoplasm, is synthesized from a strand of DNA.

The sequence of nucleotides in the RNA chain depends on the sequence of bases in the DNA strand, being placed according to the complementarity of nitrogenous bases, where a purine is complemented with a pyrimidine.

In RNA, the thymine base is replaced by Uracil, the complementary base to adenine of DNA.

ADN mRNA

A U

T A

C G

G C

For this reason:

DNA: 3’ A G G T C T T C A C 5’

mRNA: 5'-U C C A G A A G U G-3'

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3 years ago

Gregory is studying Lake Mairead. The lake has clear water and supports a healthy community of algae, fishes, and other aquatic

mihalych1998 [28]

Answer:

Through the process of Anthropogenic additions of N and P to the fresh water system can provide a strongest evidence for the above mentioned hypothesis.

Explanation:

As phosphorus is less mobile than nitrogen compounds, it is less likely to be found in fresh water where the organisms fail to access it. Phosphorus bounds mostly in the terrestrial ecosystem and in the aquatic matters because it has a sticky compound.

Thus it is a limited nutrient in freshwater lake like Mairead. However, this hypothesis can be different depending on other factors. Like, by adding anthropogenic N and P, this balance can be affected largely.

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4 years ago

A founding population of lizards arrives on an island. Which type of isolation would most likely result in this population becom

Furkat [3]

Geographical isolation refers to a population of organisms (such as plants and animals) that are separated from other species, thus unable to exchange genetic material with other organisms because of physical boundaries that isolate them or any unfavorable circumstances that prevent interbreeding.

5 0

4 years ago

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