What type of TV needs to use an electron gun?

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.

7 0

2 years ago

Explain how consuming an acid neutralizing antacid might affect protein digestion. Apply the concept of activation energy to sup

Deffense [45]

In the stomach, the enzyme pepsin has the function to break proteins into smaller units-polypeptides. Pepsin is synthesized and secreted in an inactive form- pepsinogen. Activation energy (the minimum amount of energy that is required to activate an enzyme) is achieved in the acidic medium (pH from 1 to 3). So, the activation of pepsin (conversion of pepsinogen to pepsin) is possible thanks to the cells in the stomach lining which produce hydrochloric acid (HCl), causing the stomach contents to have a low pH.

Antacids neutralize the acid made by the stomach, affecting the digestion.

7 0

2 years ago

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Describe how nitrogen in proteins in dead leaves is recycled to be absorbed by plants? Please help!

Reptile [31]

Answer:

stages of the nitrogen cycle

1. Nitrogen-fixation

Legume plants such as peas, beans and clover contain nitrogen-fixing bacteria. These bacteria live in swellings in the plant roots called nodules. Nitrogen-fixing bacteria convert nitrogen gas from air into a form that plants can use to make proteins.

Free-living nitrogen-fixing bacteria are also found in the soil. When they die the nitrogen they have fixed into their biomass is converted into ammonium.

2. Feeding

Animals consume plant protein, digest it using specific enzymes and absorb the free amino acids.

3. Production of nitrogenous waste products

Animals cannot store excess protein in their bodies. They break it down and turn it into waste products and excrete them from their bodies.

4. Decomposition

Decomposers (some free-living bacteria and fungi) break down animal and plant proteins (from dead organisms) and nitrogenous waste products to release energy. As a result of decomposition nitrogen is released into the soil in the form of ammonium.

5. Nitrification

A group of free-living soil bacteria called nitrifying bacteria convert ammonium into nitrates in order to obtain energy.

6. Uptake of nitrates

Non-legume plants absorb nitrates from the soil into their roots and use the nitrates to produce their proteins.

7. Denitrification

This is when bacteria in the soil convert the nitrate back into nitrogen gas which then gets released back into the atmosphere.

3 0

2 years ago

What would a biochemist call the result of chaining many molecules together

maxonik [38]

The structure of a typical antibody molecule

Antibodies are the secreted form of the B-cell receptor. An antibody is identical to the B-cell receptor of the cell that secretes it except for a small portion of the C-terminus of the heavy-chain constant region. In the case of the B-cell receptor the C-terminus is a hydrophobic membrane-anchoring sequence, and in the case of antibody it is a hydrophilic sequence that allows secretion. Since they are soluble, and secreted in large quantities, antibodies are easily obtainable and easily studied. For this reason, most of what we know about the B-cell receptor comes from the study of antibodies.

Antibody molecules are roughly Y-shaped molecules consisting of three equal-sized portions, loosely connected by a flexible tether. Three schematic representations of antibody structure, which has been determined by X-ray crystallography, are shown in Fig. 3.1. The aim of this part of the chapter is to explain how this structure is formed and how it allows antibody molecules to carry out their dual tasks—binding on the one hand to a wide variety of antigens, and on the other hand to a limited number of effector molecules and cells. As we will see, each of these tasks is carried out by separable parts of the molecule. The two arms of the Y end in regions that vary between different antibody molecules, the V regions. These are involved in antigen binding, whereas the stem of the Y, or the C region, is far less variable and is the part that interacts with effector cells and molecules.

8 0

2 years ago

N a lab you are conducting tests with various chemicals and neurotransmitter receptors. you notice that exposed frog muscle cell

Vadim26 [7]

The effect of a neurotransmitter is based on the properties of the receptor more than the neurotransmitter.

4 0

2 years ago