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grigory [225]
3 years ago
7

A nutrient medium that contains at least one ingredient that is not chemically definable would be termed ________.

Biology
1 answer:
natima [27]3 years ago
8 0

The correct answer is a. Complex

A complex or undefined medium is rich in nutrients, which contain water-soluble extracts of plant or animal tissue, a sugar, (often glucose is added to serve as the main carbon and energy source). The combination of extracts and sugar creates a medium which is rich in minerals and organic nutrients, but the exact composition is unknown.

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Importance of protein in mammals​
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Answer:

Proteins serve many functions within an organism, such as mammals. Proteins are used to grow and repair tissues. ... Proteins also form hormones, which transport chemical messages between tissues and organs. Proteins are also important building blocks of bone, carilage, muscle, skin, and blood.

Link:

https://www.enotes.com/homework-help/outline-role-proteins-life-mammals-547196

7 0
3 years ago
What is the role of RNA polymerase in transcription?
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frozen elephant trunk for aortic arch reconstruction is associated with reduced mortality as compared to conventional techniques
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To compare the perioperative results of frozen elephant trunk (FET) vs. traditional elephant trunk (ET) procedures for aortic arch repair. 390 individuals had aortic repair with elephant trunk reconstruction between 2002 and 2018 at 9 facilities: Aortic dissection affected 37% of patients who received a FET (mean age: 65+/-13 years, 30% female), while 43% of patients who received an ET (mean age: 63+/-13 years, 37% female) experienced aortic dissection. In-hospital mortality, stroke, and spinal cord injury were among the outcomes of interest (SCI).

<h3>What is Aortic arch ?</h3>

The top portion of the principal artery sending blood away from the heart is known as the aortic arch. A combination of symptoms and signs known as aortic arch syndrome are linked to anatomical issues in the arteries that branch off the aortic arch. The valves, chambers, and accompanying vessels that make up the heart's interior.

<h3>What is conventional techniques ?</h3>

Conventional methods assess the long-term heat stability of polymer products at temperatures below their melting points, for instance, through accelerated aging in "circulating air ovens" until degradation effects like discolouration and embrittlement become apparent.

To know more about Aortic arch please click here : brainly.com/question/27961035

#SPJ4

7 0
1 year ago
Which substance on the plasma membrane helps identify chemical signals from outside the cell?
vodomira [7]

Answer:

The correct answer is carbohydrate chain.

Explanation:

Plasma membrane contain various proteins such as peripheral proteins,transmembrane proteins,GPI anchored proteins.Among them some protein contain carbohydrate chain basically oligosaccharide chain which is arranged in the extracellular portion of the plasma membrane.

 The principle function of these oligosaccharide side chains is to detect various chemical and biochemical signals from outside the cell .

 For example integrin is a glycoprotein that detect the signal for communicating with the adjacent cells.

3 0
3 years ago
What effect on the body does a lack of insulin have?
ludmilkaskok [199]
Insulin is such a vital secretion of the pancreas in the human body that without it, our body would not function normally. It is responsible for breaking down the food we eat and converting it to energy and then storing that energy. Lack of insulin means that the pancreas are not producing insulin which leads to diabetes. That means that there is a concentration of glucose in the blood rather than being distributed to cells to carry out functions. This can lead to kidney failures,  nerve damaging stomach problems and problems in the eyes.
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