Answer;
B) Neurons, epithelial cells
Explanation;
-Primary lateral sclerosis (PLS) is a rare neuromuscular disease with slowly progressive weakness in voluntary muscle movement. PLS belongs to a group of disorders known as motor neuron diseases. PLS affects the upper motor neurons (also called corticospinal neurons) in the arms, legs, and face.
-It occurs when nerve cells in the motor regions of the cerebral cortex (the thin layer of cells covering the brain which is responsible for most higher level mental functions) gradually degenerate, causing movements to be slow and effortful. The disorder often affects the legs first, followed by the body, trunk, arms and hands, and, finally the bulbar muscles (muscles that control speech, swallowing, and chewing).
Answer:
B. The conditions in their muscles have become anaerobic.
Explanation:
In humans, cellular respiration occurs naturally in an aerobic condition (presence of oxygen) but anaerobic respiration can be adopted in specific or extreme cases. One of those cases is after or during a VIGOROUS EXERCISE.
What happens is that, after a vigorous exercise by an athlete, oxygen becomes insufficient in their muscle cells due to high consumption. Hence, their muscle cells switch to anaerobic respiration (lactic acid fermentation), which causes the build up of lactate in the muscle tissues. This lactate build up cause athletes to experience a painful and burning sensation in their muscles.
Hence, it all begins when "conditions in their muscles become anaerobic after an exercise".
Answer:
The relationship is that the greater the volume of water in the central vacuole, the greater the turgor pressure, due the more or less amount of water stored in the central vacuole.
Explanation:
As a consequence of the presence of a plant cell in a hypotonic extracellular medium, water passes through osmosis inside the cell, through the semipermeable cell membrane.
The central vacuole is a structure present in plant cells, whose main function is the storage of water. The amount of water present within the vacuole can cause this structure to grow larger or contract, which determines the turgor pressure, which is a phenomenon dependent on osmosis and hydrostatic pressure.
A central vacuole dilated by excess of water produces cell dilation which promotes increased turgor pressure and pushes the plasma membrane against the cell wall.
Learn more:
Turgor pressure control brainly.com/question/5558909
