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madreJ [45]
3 years ago
10

Arachidonic acid is the raw material for synthesis of

Biology
1 answer:
RUDIKE [14]3 years ago
7 0

Answer:

The correct answer is E. Arachidonic acid is the raw material for synthesis of eicosanoids.

Explanation:

Arachidonic acid is an essential omega-6 fatty acid formed by a 20-carbon chain with four double bonds. The presence of double bonds causes this molecule to have several sites that can be oxidized, allowing the formation of different lipids with different biological activities.

Arachidonic acid is part of phospholipids in cell membranes, and is the precursor of eicosanoid biosynthesis. Arachidonic acid can be synthesized from linoleic acid, one of the essential fatty acids required by most mammals.

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Define the 3 main mechanisms in a “feedback loop”. (the names and what each does)
viktelen [127]

Explanation:

A feedback loop involves:

  1. a receptor
  2. control center
  3. an effector

The endocrine system involves chemical signalling via the secretion of molecules called hormones into extracellular fluid. They bind to chemical receptors in order to cause specific changes in target cells, these lead to changes in the body's internal environment called homeostasis. It includes the thyroid, parathyroid, pituitary, pineal and adrenal glands along with other regions. The bone, adipose tissue, heart, pancreas and liver are a few of the regions of the body which show endocrine function. The brain, or control center functions to receive and process the information from the receptor. Effectors receive the control center's command and illicits a response in the form of a feedback loop, that may oppose or enhance the stimulus.

Further Explanation:

During homeostasis the body maintains a constant internal balance in pH, temperature, blood pressure etc. Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis. Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. For instance, the regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.

Learn more about tissue types at brainly.com/question/8487952

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

7 0
3 years ago
What structures are found in plant cells that are not found in animal cells?
solong [7]

There are three major structures that are found in plant cells that aren't found in animal cells. These are chloroplasts, (which is where the process photosynthesis takes place), a cell wall (which keeps the structure of the cell), and a large central vacuole,  (which stores extra food/water). Don't make the mistake, though.  Animal cells have vacuoles, but they are just smaller and not as important, because they have a different way of excreting waste, which plant cells cannot do.

4 0
3 years ago
Childhood overweight and obesity are defined by determining a child's fat composition. childhood overweight and obesity are defi
Whitepunk [10]
The answer is B, false, B, false
6 0
3 years ago
The function or job of the nervous system is: *
OLga [1]

Answer:

To recieve information and control functions

Explanation:

3 0
3 years ago
The use of arsenate instead of phosphate by glyceraldehyde 3‑phosphate dehydrogenase produces 1‑arseno‑3‑phosphoglycerate, which
iVinArrow [24]

Answer:

In glycolysis, the generation of ATP takes place at the time of the transformation of 1,3-bisphosphoglycerate to 3-phosphoglycerate and at the time of the transformation of phosphoenolpyruvate to pyruvate. However, when arsenate is used in place of phosphate it results in the generation of 1-arseno-3-phosphoenolpyruvate to pyruvate that further gets dissociated into 3-phosphoglycerate without generating any ATP.  

However, in the process, the transformation of phosphoenolpyruvate to pyruvate does not get hampered, and therefore, the reaction will produce two ATP from one glucose. Although at the time of the preparatory phase of glycolysis, two ATPs are used that signifies that the net gain of ATP will be zero.  

7 0
3 years ago
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