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Brrunno [24]
4 years ago
8

Egg whites stiffen when they are whipped. The change that occurs in the protein is called ___________.a. denaturation. b. transl

ocation. c. transcription. d. deamination.
Biology
2 answers:
UNO [17]4 years ago
7 0

Answer:

Denaturation

Explanation:

Proteins are huge molecules that need to get an accurate tridimensional structure to accomplish their function.

In water, these molecules keep their hydrophilic parts in the outside and the hydrophobic part in the inside.  

There are some treatments like changes in temperature or pH that provoke changes in the tridimensional structure of the protein. This process is known as DENATURATION. The protein losses its original native structure and its properties.

When denaturation occurs the protein tends to join together with other denaturalized proteins through the areas that repeal water, becoming coagulated.

Tema [17]4 years ago
5 0

Answer:

Answer is A. Denaturation.

Explanation:

Denaturation occurs when there is a disruption in the highly ordered or molecular structures, i.e, the secondary and tertiary structures ,present in the native state of the protein.

Denaturation can be caused through the application of some external stress, heat, inorganic salts among others.

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sineoko [7]

Answer: The article read by Yuki is more likely to have been peer-reviewed because this article is part of a Journal Medicine and peer-review is mandatory in most Academic journals before publication.

Explanation:

Peer-review implies academic works such as research papers or articles are verified by peers of the author. For example, a medical article is evaluated by other experts in the same field with similar knowledge and competences. This process is essential to guarantee the information is accurate and reliable.  Moreover, peer-review is used mainly in academic journals or academic papers. Indeed, most academic journals require new articles or papers to be peer-review before these are published in the journal.

In this context, it is likely the article red by Yuki has been peer-reviewed because this is part of a Medicine journal and it is a general standard for articles in journals to be reviewed. Also, this is not a requirement for articles published in regular magazines such as Tasty Food magazine.

6 0
3 years ago
Nitrogen is a very important element in biology. What are some of the reasons that organisnm needs nitrogen?
djverab [1.8K]

Answer:

Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

7 0
3 years ago
A different DNA ladder from NEB (Cat #N3200L) comes as 500 uL of a 1000 ug/mL solution and is not pre-mixed with the 6 X DNA loa
JulijaS [17]

Answer:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder

Load 12 ul on the gel.

Explanation:

DNA Ladder concentration = 1000 ug/ml

1000 ug DNA in 1 ml DNA Ladder solution →    150 ng DNA = 0.15 ug DNA in..... 0.00015 ml = 0.15 ul DNA Ladder solution

6x DNA Loading Buffer → it has to be diluted by an equal volume 6 times (1 ul LB + 1 ul distilled H2O)

An appropriate volume to load on an average agarose gel is 12 ul, so:

2 ul Loading Buffer + 9.85 ul dH2O + 0.15 ul DNA Ladder = 12 ul

But since 0.15 ul is a very small volume and mistakes could be made while measuring it, let's make double:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder = 24 ul

And load half of that solution (12 ul) on the gel.

5 0
3 years ago
Bees see the colors yellow and blue, but not red. Flowers that need to be pollinated by bees are mostly yellow of blue. What typ
Inga [223]

Answer:

Natural Selection

Explanation:

In natural selection process of evolution, traits that are essential for an individual to be fit enough to survive under environmental stress become dominant.

Since the flowers are of blue or yellow color, it is essential for a bee to be able enough to perceive the blue and yellow color. Hence, the eyes of bee with time have evolved to perceive these two color so that they can pollinate flower.

5 0
3 years ago
Can anybody help me? Please!
melisa1 [442]
More than likely mutation
4 0
3 years ago
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