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lindseysmith9522
04.12.2020 •
Biology
Cells are generally small. Select the ONE response that does not support this claim.
A: Moving waste materials across their cell membranes is more efficient.
B: As they grow, their surface area increases faster than their volume.
C: As they grow, their volume increases faster than their surface area.
D: Moving nutrients across their cell membranes is more efficient.
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Ответ:
Explanation:
If sustained at a high enough frequency, summation could lead to a condition known as tetanus
Tetanus is also known as lockjaw which is a serious infection caused by Clostridium tetani This bacterium produces a toxin that affects the brain and nervous system, leading to stiffness in the muscles,if Clostridium tetani spores are deposited in a wound, the neurotoxin interferes with nerves that control muscle movementSummation occurs as successive stimuli are added together to produce a stronger muscle contraction resulting in greater tension Tetanus results into prolonged contraction without relaxation and results from repeating stimulation before the muscle has a chance to relax at all(high enough frequency condition)