Question

What would happen to individual muscles if muscle cells failed to function properly?


A.


The muscles will not work.


B.
The individual muscles will begin to loose their coordination abilities.


C.
The muscle tissues will have to work much harder, and the individual muscles will tire more quickly.


D.
The muscle cells will begin to have spasms, causing the individual muscles to lose their strength.

Answer 1

i think its C but im not sure

Answer 2

D.

C is untrue because it implies that other muscles can just make up for an individual muscle's failure to function properly. However, muscles tend to have spasms if not functioning properly which in the long run does cause the individual muscles to lose their strength.

It's not A because the muscle will still operate.

Answer 3

Muscles will spasm when there is some compound acting on them, eg from nerves or a drug that would come through the veins. Thus i doubt it is D.

Since individual muscles are made of muscle tissue, which are bundles of muscle cells, i'd say A. A muscle cannot function if its cells fail to function.

The way a muscle cell generates tension (to pull the whole muscle together) is by using the energy of the ATP bond to adjust the size of the sarcomere. If a cell is malfunctioning, it will not produce ATP.

Answer 4

It's true that a muscle cannot function if its cells fail to function, however the questions states that the muscle cells are malfunctioning, or not operating properly.

Part two is not so simple. It's not true that a cell will simply cease to function/stop producing ATP if it ceases to function properly. There are many diseases such as many mitochondrial diseases that still, obviously, create ATP. Mitochondrial malfunctions such as those in muscle cells can result in many symptoms such as fatigue.

Answer 5

@verlorene, yeah but fatigue is not among the answers.

Answer 6

Fatigue is merely one of the results of a malfunctioning muscle cell. " A muscle cannot function if its cells fail to function" is true, but it is not that the cell fails to function in this case, it is that the cell fails to function properly. Your second statement also states that, "if a cell is malfunctioning, it will not produce ATP," hence my example of fatigued muscle cells. Fatigued muscle cells are a result of malfunctioning cells, yet they are still producing ATP and operate.

Answer 7

Fair enough, there are many possible consequences of a cell malfunctioning. It can have a disrupted skeleton, it can generate less ATP (in mitochondrial malfunction for example, since they are major sites of ATP generation).

So it is true that malfunctioning cells may survive, but in that case they still have to function on a fairly high level, since any wrong signaling or sign of damage by the cell on its surface is likely to get noticed by the immune system, with the cell pointed towards apoptosis.

Answer 8

^ Therefore the answer cannot be A.

Answer 9

Well, the mussle tissues will not work harder either, so it will not be C either.

Answer 10

^ Exactly, hence "C is untrue because it implies that other muscles can just make up for an individual muscle's failure to function properly. However, muscles tend to have spasms if not functioning properly which in the long run does cause the individual muscles to lose their strength. "

Answer 11

Or it really depends on the type of malfunction. If its genetic. then all cellsa are affected, and its not C. But if its only some cells, then others may have to compensate, making C true..