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1 year ago

What purpose is served by the loss of an -H and -OH end from two molecules as they join together during dehydration synthesis

Biology

2 answers:

bazaltina [42]1 year ago

5 0

Answer:

To create positive and negative ends to attract and hence combine with each other.

Explanation:

Two molecules combine usually by some sort of attraction between them.

When one molecule loses OH- ion, it becomes positively charges while the other molecule loses H+ ion and becomes negatively charged.

Now two molecules , one electro positive and other electro negative attracts each other and combine by forming hydrogen bonds.

Like wise the H+ and OH- released, also combines to form water.

makkiz [27]1 year ago

4 0

The loss of the hydrogen on one molecule produces a negative charge, which is attracted to the positive charge formed by the loss of the hydroxy group from the other molecule.

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How many generations does it take for a single bacterial cell to become 256 bacterial cells? (hint, don't forget to count the fi

Tpy6a [65]

Bacteria is a unicellular organism which can multiply very fast by binary cell division.
To get a number of divisions required for cell division: you can use the formula: 2 $x^{number of generations}$ = number of bacteria
To get 256 bacteria:
2 $x^{n}$ = 256 (you can solve this equation by a calculator)
so: n = 8 generations

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2 years ago

Summarize what happened to the fish in loberg lake include an explanation for why it happened.

STALIN [3.7K]

The Stickleback fishes regrew in their assigned and adapted niche

According to sources, the most probable answer to this query is that this shows how species, for example, fishes can still evolve. And that evolution is a tangible explanation for such event,

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1 year ago

Becky is a 53-year-old woman living in Seattle, Washington, with her husband Tim and their dog Tipper. Even though they both hav

Alika [10]

Answer:

Becky’s doctor provided only supportive care because the toxin that poisoned her, the demoic acid, has no known antidotes; which happen to be the only cure for toxins.

Antimicrobial were not part of Becky's treatment because Becky was infected by a toxin and not a microbial infection.

Diatoms are not different from eukaryotic cells or eukaryotes. they are Eukaryotes, which are different from prokaryotes. However both the eukaryotes (diatoms) and the prokaryotes possess cytoplasm, plasma membrane and ribosomes.

Explanation:

Demoic acid is a marine bio-toxin that results in Amnesic Shellfish poisoning (ASP). This biotoxin is produced by diatoms of the species Nitzschia navis-varingica of the genus Pseudo-Nitzschia. This intoxication can result in symptoms ranging from gastrointestinal upset (vomiting, nausea, diarrhea, abdominal cramps, hemorrhagic gastritis) to neurological disturbances (including headaches, diziness, disorientation, vision disturbances, loss of short term memory, motor weakness, abnormal heart rhythm, unstable blood pressure, etc.). In more severe cases, it could lead to permanent short term memory loss, brain damage, coma, and death. Due to the lack of antidotes for this toxin, it is advised that medical attention be sought as soon as possible, where the patient can be closely monitored and cared for.

There's a difference between toxins and microbial infections. while Microbial infections are caused by harmful microorganisms infecting the body tissue and cells, toxins are harmful substances produced by microorganisms. Hence, the approach for treatment for both cases are different.

Diatoms are eukaryotic cells or eukaryotes, which are organisms that have a membrane enclosing in their nucleus, hence they have a true nucleus and organelles bound by a membrane, supporting functions in compartments. Prokayotic cells or prokayotes, on the other hand, which are typically smaller, do not possess a protective membrane around their nucleus or any organelles enclosed by the membrane. Regardless of their differences, they still both share similarities. After all, they both are cells. So they have the basic features of cells. These similarities include the possession of a cytoplasm, ribosomes, plasma membrane.

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2 years ago

Describe the function of each organelle. Nucleus Ribosome Endoplasmic reticulum Golgi apparatus

Fofino [41]

Nucleus controls the cell, it tells the cell what to do, similar to a brain. Rough ER or Ribosome ER creates the proteins in the cell. Golgi Apparatus packages macromolecules like lipids and proteins for transport.

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1 year ago

Read 2 more answers

Which of the following is a true statement about sexual vs. asexual reproduction? A. Asexual reproduction, but not sexual reprod

Afina-wow [57]

The correct answer is: B. In sexual reproduction, individuals transmit half of their nuclear genes to each of their offspring.

The main difference between sexual and asexual reproduction is that in sexual reproduction genetic material from two parents is combined, while in asexual reproduction produced offspring is genetically identical to the one parent. So, advantage of sexual reproduction is that produced unique organisms contribute to genetic diversity (variation is formed). But, comparing to asexual reproduction, sexual reproduction requires more energy and lasts longer.

Asexual reproduction is found in lower organisms and can be in different forms: budding, vegetative reproduction, fragmentation, spore formation.

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2 years ago