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Aleksandr-060686 [28]
2 years ago
10

Describe how DNA is protected in its cooled form

Biology
1 answer:
kap26 [50]2 years ago
8 0

The DNA double helix coils around itself simply because it is the most stable way for the atoms to interact. In other words, the DNA molecule naturally is coiled because the chemical bonds are most stable in a helix. This is the primary structure of DNA.

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Before starch can enter a cell it must be digested to form simple sugars. Why?
Nataliya [291]
Starch is a high molecular weight substance; therefore, it is insoluble to our cells. It needs to be broken down to simple sugars like glucose in order for it to be dissolved/absorbed in our blood. This is because simple sugars has smaller molecular weights and are more soluble.
5 0
3 years ago
If a hemoglobin molecule comes into close contact with a respiring cell, the presence of CO2 in the environment will cause hemog
lapo4ka [179]

Answer:

No, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 binds to hemoglobin and the affinity for O2 decreases, causing it to release.

Explanation:

The O2 molecule is reversibly combined with the heme portion of the hemoglobin. When the partial pressure of O2 is high, as in the case of pulmonary capillaries, for example, the binding of O2 to hemoglobin and the release of carbon dioxide are favored, this is known as the Haldane effect. If, on the contrary, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 is bound to hemoglobin and the affinity for O2 decreases, causing it to release, this is known as the effect Bohr.

8 0
3 years ago
List the sequence of events involved in the alternation of generations in land plants
Keith_Richards [23]
<span>The sequence of alternation of generation is; gametes->zygote->sporophyte->spores->gametophyte->gametes. The attached diagram shows clearly this looped cycle. Alternation of generation occurs in a more advanced land plant that has distinct haploid and diploid phases in their life cycle. The diploid phase usually involves the sporophyte while the haploid phase involves the gametophyte</span>




7 0
2 years ago
13. The worst problem a person with no pancreas would face would be
Mariana [72]

Answer: Option B) inability to digest proteins

Explanation:

The pancreas secretes trypsin, a proteolytic enzyme, that acts on proteins cleaving its peptide bonds, and eventually yielding peptones or polypeptides.

Thus, in the absence of pancreas protein digestion would be a problem

7 0
2 years ago
_____ attempted to measure intellectual strengths based on tests of reaction time, muscular power, and body proportions.
Vikki [24]

Answer:

Francis Galton

Explanation:

Francis Galton was interested in anthropology, statistics, geography, and psychology, he try to measure i ntelligence scientifically through <em>reaction time tests. </em>

I hope you find this information useful and interesting! Good luck!

7 0
2 years ago
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