1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stellarik [79]
3 years ago
7

You experimentally apply a toxin to a muscle and find that it does not contract when you electrically stimulate the motor neuron

leading to it. You know that this toxin blocks acetylcholine receptors. Therefore, you suspect that the stimulation of contraction is failing because: Group of answer choices
Biology
1 answer:
Furkat [3]3 years ago
5 0

The question provided is not complete as it lacks the group of choices, however the group of choices are given as follows:

A. A contraction fails to occur because an action potential is not generated in the muscle cell.

B. A contraction fails to occur because this toxin directly prevents ion release from intracellular stores.

C. A contraction fails to occur because neurotransmitter release by the motor neuron is blocked at the neuromuscular junction.

D. A contraction fails to occur because this toxin prevents cross bridge formation and thereby directly prevents contraction.

E. C and D are both true

Answer:

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

Explanation:

A muscle contraction takes place when action potential bring to muscles by nerves, which is traveled with the help of motor neuron and imitated the muscle contraction.

Acetylcholine or Ach is a chemical messenger to bring the nerve impulses between a nerve and a muscle. If the receptor is block with applying toxin muscle will not contract as ACh will not be able to propagate the nerve impulse to the muscle so there will be no action potential.

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

You might be interested in
Mitosis and cytokinesis result in the formation of _____; meiosis and cytokinesis result in the formation of _____.
mina [271]
1) 2 Diploid cells

2) 4 Haploid cells
5 0
3 years ago
Does cellular respiration follow the law of conservation of energy?
k0ka [10]

Yes. Every chemical reaction obeys the law of conservation of mass.

Believe it!!

Pls follow me.

8 0
3 years ago
The only portion of a haplontic life cycle that is diploid is the .
lakkis [162]
I suppose it's a zygote. In haplontic life cycle haploid gametes fuse together creating the zygote (diploid) that promptly divides meiotically creating 4 haplontic cells serving as spores.
6 0
3 years ago
Read 2 more answers
How do some nucleotide sequences in DNA get copied into RNA when DNA and RNA have different bases. For example, how is the seque
kvasek [131]

Answer:

In RNA the base thymine is essencially replaced by the base uracil. So the sequence TGAC in DNA would get copied into RNA as ACUG.

Adenine pairs with uracil in RNA like it pairs with thymine in DNA

Explanation:

8 0
2 years ago
A gene is respsonsible for producing an enzyme that is used to make tryphon an in bacteria. If the cell has enough tryptophan an
nataly862011 [7]
The production will most likely be halted by an inhibitor until the cell needs more to be produced
8 0
2 years ago
Other questions:
  • A nursing student is preparing a care plan and is choosing a nursing diagnosis for her client with alzheimer's disease. the clie
    8·1 answer
  • Serous fluid in the pericardial cavity __________. serous fluid in the pericardial cavity __________. is a remnant of embryonic
    10·2 answers
  • What makes up a large percentage of an animal cell?
    12·2 answers
  • Which of the following is an example of a fixed action pattern behavior?
    8·1 answer
  • Question 9 of 10
    8·2 answers
  • Asexual reproduction is based on a type of cell division known as (mitosis, meiosis) and occurs most often in (more complex, les
    8·1 answer
  • Sort the descriptions of open clusters and globular clusters into open clusters or globular clusters
    8·1 answer
  • The green pigment in plant cells is called
    8·2 answers
  • In your words, give a brief overview of the process of photosynthesis. Include where each phase takes place within a plant cell.
    9·1 answer
  • Carbon Cycle, Water Cycle, or Both.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!