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4 years ago

a surgeon is in operating room assisting on a lung transplant. he is working at the cellular level. true or false ?

Biology

1 answer:

Nat2105 [25]4 years ago

7 0

The answer is false.

The group of similar cells working together to perform a specific job is called a tissue. The functional group of multiple tissues is called organ. Functionally related organs form organ systems, which all together form one organism.

So, surgeon is working at the organ level. The lungs are the organs of transpiration. Since they are organs, they consist of multiple tissues, which consist of many cells. But the surgeon does not work on one single cell, he works with the whole organ.

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What does the team diffusion meaning

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Diffusion refers to the random motion of particles from a medium of higher concentration to a medium of lower concentration.

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3 years ago

Read 2 more answers

Close examination of an organ reveals a lining of multiple layers of cells. The layers are avascular and regenerate well. One su

nevsk [136]

Answer:

Epithelial Tissue

Explanation:

The epithelial tissue can be classified according to the amount of layers, such as simple epithelium (formed by a single cell layer) or stratified epithelium (formed by more than one cell layer).

In addition, this tissue is avascular, in other words, it has no proper blood supply. Its nutrient transport usually occurs by diffusion through connective tissue.

The epithelium layers are able to regenerate quickly and easily when destroyed. Being a coating tissue, its cells have high healing power.

The epithelial tissue has two opposite sides, the outside of the epithelium(cavity), is known as the apical surface, and the inside is called the basal surface (this surface receives nutrients from the connective tissue by diffusion).

Cells on both surfaces are tightly connected, providing protection to the underlying connective tissue.

Finally, epithelial tissue also participates in the process of absorption of substances through the intestinal epithelium.

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3 years ago

If heat energy is transferred from direct contact between a warm object in a cold object it has been transferred by _________

Minchanka [31]

Answer: Conduction

Explanation:

There are basically 3 types of processes that occur for heat transfer - conduction, convection and radiation,

Conduction is the process of heat transfer in which the objects are placed in a direct contact and the heat travels from one object to the other due to the temperature difference between them. It is a slow process and occurs usually when the heat transfer has to to take place between solid objects.

Convection is the process of heat transfer in which energy transition takes place in the liquids and gases and the heat gets transferred due to the density difference between the fluids.

Radiation is a type of heat transfer in which the heat is transferred without any sort of physical contact using electromagnetic waves.

Since, in the given question the heat is being transferred through a direct contact, it is conduction which is taking place.

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4 years ago

A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough

djyliett [7]

Answer:

As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.

Explanation:

The fatigue in the muscle is due to lactic acid fermentation which occurs during vigorous muscular activity when blood is unable to supply enough oxygen to muscles. The lactic acid accumulates in the muscle causing pain and muscle cramps.

Glucose → Lactic acid + 2ATP

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3 years ago

ANATOMY QUESTION

Fittoniya [83]

D The Pulmonary Artery carries blood from the heart, back to the lungs for reoxigination from what I understand

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3 years ago