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
julia-pushkina [17]
3 years ago
11

Which of the following is a characteristic of a base

Biology
1 answer:
dexar [7]3 years ago
8 0

The right option; Is slippery

A base is any water soluble compounds that can accept a hydrogen ion from another substance. Some bases are strong while others are weak. Bases have bitter taste, slippery or slimy feel on fingers, turn red litmus paper blue and react with acids to form salt. Examples include caustic soda and ammonia.






You might be interested in
In a particular population the allele frequency of the ABO blood type alleles are as follows: r is 50%. IB is 49% and i is 1%. I
agasfer [191]

Answer:

26% is the percent of the population will have an A blood type (Option C)

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

Download pdf
7 0
3 years ago
The burning of fossil fuels has harmed the environment by
DanielleElmas [232]
Green house gases. =)
7 0
3 years ago
Please describe the signal transmission across a myoneural junction that allows the nervous system to move the muscles of a foot
Tems11 [23]

The contraction of the muscles (whether at the level of the arms or the legs) and more specifically the muscular fibers of the musculoskeletal system, that is to say organs, in the broad sense of the term, allowing the movement, is normally under the total dependence of the nerves which transmit a nervous command.

This command can be considered as a voluntary order (from the cerebral cortex). This nerve impulse then takes the direction of the spinal cord where it is directed by a series of nerves called relays to route the nerve impulse (order) to the muscles.

Then the nerve impulse propagates along the axon and when it reaches the motor plate it causes the release of a substance called neurotransmitter: acetylcholine. The neuroreceptor, in the motor plate, receives the nerve signal that the end of the axon transmits to it by a chemical mediator. Acetylcholine binds to the receptors, triggering a contraction of the muscle cell.

<em>More precisely, acetylcholine is enclosed in vesicles (a kind of tiny sphere-shaped grains) located within the nervous corpuscles located at the end of each neuron. When nerve impulses (stimulation) reach the presynaptic membrane, acetylcholine is released and diffuses into the synaptic cleft (about 50 nanometers wide) filling it. Acetylcholine will at this time bind very briefly to receptors located after the synapse (postsynaptic) and trigger the opening of sodium channels (followed by their closure and an opening of potassium channels). These channels are tiny tubules allowing the passage of ions (atom having lost or gained an electron). </em>

<em>This results in the propagation of an "electric charge" action potential at the origin of the passage of the nerve impulse, in other words of the order given by the brain or by the autonomic nervous system. </em>

<em> </em>

After this first step acetylcholine is then released and degraded by an enzyme called acetylcholinesterase (AChE) located in the synaptic cleft but also on the postsynaptic membrane. The choline thus released is then recaptured by the presynaptic bodies and reused for the synthesis of new acetylcholine molecules.

Acetylcholine is involved in the control of muscles via neuromuscular terminations and viscera or glands and sometimes both. This is how it intervenes to make also work for certain organs like the heart, the salivary glands, the sweat glands, the bladder, the bronchi, the eyes, intestine etc.

<em>A variety of enzymes called cholinesterases allow the rapid inactivation of acetylcholine. The chemical reaction that causes the contraction of the muscle fiber is a brief phenomenon. Indeed, acetylcholine is very rapidly degraded by cholinesterases. As a result, acetylcholine itself cannot be used in drug form. Nevertheless to circumvent these difficulties other drugs reproduce or prevent the effects of this neuromodulator. These are agonists or antagonists respectively. </em>

The muscular fiber is an elongated cell used in the composition of the muscle, which is a fleshy organ with the property of contracting and relaxing. Each muscle cell is surrounded by a membrane containing a cytoplasm called sarcoplasm with myofibrils which are elongate filaments parallel to the major axis of the cell.

5 0
3 years ago
Charles is conducting an experiment to test the hypothesis that identical twins throughout the world have different
dusya [7]

Answer:

expand the scope of the experiment

Explanation:

4 0
3 years ago
If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A dog-cat hybrid? Your
musickatia [10]

Answer: I would make my own giant and it would have long hair and live i the mountains, and it needs the cold weather to survive. Some of the things that it eats is the things humans eat like duck, chicken, ham, and uh yeah.

7 0
3 years ago
Other questions:
  • Which process is directly responsible for root growth in plants?
    13·2 answers
  • The patient with parkinson's disease has a pulse oximetry reading of 72% but the patient is not displaying any other signs of de
    15·1 answer
  • Environmental microbiology... A. ...shows great promise, but has not yielded any significant discoveries yet. B. ...includes met
    6·1 answer
  • These are cells which have become modified and specialized within an organism. Example: The gradual formation of organs in the b
    5·1 answer
  • The allelic make up of a cell or individual is referred to as its
    10·1 answer
  • What part of the plant does fruits and seeds form
    13·1 answer
  • Help with question 3 please (:
    5·1 answer
  • wave is a disturbance which travels through a medium carrying energy from one point to another without causing any permanent dis
    11·2 answers
  • Which lists the steps of Meiosis II in the correct order?
    5·1 answer
  • Which structure of human hands makes them especially useful for gripping things?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!