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
Alexxandr [17]
2 years ago
9

Which is the chief cation of intracellular fluid for which maintenance of normal levels is essential to life of the cells?

Biology
1 answer:
Verizon [17]2 years ago
5 0

Answer:

Potassium

Explanation:

Potassium is the major cation of intracellular fluid and is involved in the normal functioning of neurons and muscles. Adequate intracellular levels of potassium are also required for many vital metabolic activities.

Nerve and muscle cells need to balance the intracellular potassium ion concentration as relative concentrations of potassium ions in intracellular and extracellular fluid regulate their resting membrane potential. Increased extracellular concentration of potassium depolarizes these cells while its reduced levels cause hyperpolarization making the nerve cells and muscle cells non-responsive.  

Similarly, heart cells need to maintain the potassium levels as its imbalance disrupts the electric conduction in the heart and may even cause sudden death. Being a part of buffer system of cells, potassium ions maintain the pH of body fluids.  

You might be interested in
The resistance to the pesticide in insects occurred because
Gemiola [76]

Answer:

The correct answer is option B. favorable change in DNA of the insect.

Explanation:

At the point when a pesticide is first utilized, a little extent of the pest population may survive to introduction to the material because of their particular hereditary or genetic makeup. These surviving individuals pass along the gene resistance to particular insecticide or pesticide to next generation.

Upon introduction to pesticides, insects that don't have the resistance die eventually, in this manner permitting the insects with the resistance genes to endure and reproduce,creates more resistance insects.

Thus, the correct answer is option B. favorable change in DNA of the insect.

8 0
3 years ago
Read 2 more answers
To keep the humeral head centered within the glenoidal cavity the rotator cuff muscles must be __________. Select to launch anim
enyata [817]

Answer:

<h2> located in the same plane</h2>

Explanation:

  • Such types of muscles and tendons that play an important role in the stabilization of the shoulder are called rotator cuff muscle.
  • These muscles are responsible for the different types of motion and simply called a different range of motion.
  • Muscles like scapulohumeral muscles,  infraspinatus muscle and some others are grouped as rotator muscle.
  • These muscles are involved in the movement of the shoulder and also stabilize the joints of the shoulder for the movement and during the movement.
  • When the humeral head is centered within the cavity of the glenoidal then the rotator cuff muscle should be on the same plane.
8 0
3 years ago
If a true-breeding blue-flowered plant was crossed with a true-breeding white-flowered plant, what phenotypic ratio would we obs
Westkost [7]

Answer:

B. 100 percent white

Explanation:

According to Mendel's law of dominance, the dominant allele of a gene masks the expression of the recessive allele in a heterozygous state. Therefore, when two pure breeding plants that differ with respect to one genetic trait are crossed, the progeny expresses only the dominant phenotype. Here, one allele should be completely dominant over the other. The allele for the white flowers is completely dominant over the allele for the blue flowers.

Let' assume that the allele "W" imparts white color to the flowers while the allele "w" gives blue color. When a true-breeding blue-flowered plant (ww) is crossed with a true-breeding white-flowered plant (WW), the progeny would be heterozygous for the dominant allele "W" and would exhibit "white color of flowers" (the dominant trait).

WW (white-flowered plant) x ww (blue-flowered plant) = Ww (white-flowered plant)

6 0
2 years ago
What is the definition of wildlife?<br><br>​
vredina [299]

Answer:

wild animals collectively; the native fauna (and sometimes flora) of a region.

Explanation:

I hope this helped :)

7 0
3 years ago
Read 2 more answers
Which of the following happens to large molecules during digestion?
mel-nik [20]

Answer:

large intestine

Explanation:

Through digestion, large food particles are converted into smaller components that can be readily absorbed into the bloodstream. Sucrose binds to the active site on sucrase, and this puts stress on the bond between the 2 sugars that make up sucrose. The bond breaks, releasing glucose and fructose.

6 0
2 years ago
Other questions:
  • Match each cellular defense with the infection it would most likely target.
    5·1 answer
  • FIRST ANSWER GETS BRAINLIEST
    11·2 answers
  • Which of the following best describes evolution?
    13·1 answer
  • Whats a synonym and antonym for genotype
    12·1 answer
  • Phenylketonuria (PKU) is a disease caused by a recessive mutation. PKU is extremely common in Ireland, affecting approximately 1
    10·1 answer
  • What ethical issues are associated with medical uses of dna technology
    15·1 answer
  • A piece of duct tape was removed from a kidnapping victim. A roll of the same brand of duct tape was found at the suspect’s home
    7·2 answers
  • What do you expect the DNA sequences of the three frogs to look like?
    11·2 answers
  • When comparing two species, which type of body structure indicates evolutionary relatedness?.
    7·1 answer
  • 1) Students in a science class created Eco columns to mimic a small ecosystem. Grass seeds were planted in 50 grams of potting s
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!