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
Aleks [24]
3 years ago
12

The body uses atoms in different ways to accomplish different tasks. For example, one portion of the body's calcium supply stren

gthens bones, whereas another portion combines with proteins to stimulate blood clotting after tissue injury. Which of the following statements provides the most logical chemical explanation of calcium's ability to perform such different functions?a. The calcium in blood is a more reactive form of the atom and therefore has fewer protons than the calcium in bone.
b. there are many different isotopes of calcium, and the most reactive isotope is found in the bone.
c. the bone contains calcium salts, which are less reactive than the calcium ions found in the blood.
d. the calcium in blood has a lighter atomic mass than the calcium in bone and is in a more reactive form.
Chemistry
1 answer:
Nikolay [14]3 years ago
3 0

Answer:

The correct option is;

c. the bone contains calcium salts, which are less reactive than the calcium ions found in the blood.

Explanation:

The most abundant metallic element found in the human body is calcium as it is present in the bones teeth and metabolism of the kidney

99 %  of the calcium in the human body are found in the bones while the remaining 1 % circulates in the blood as ions

The bones of the vertebrate are made up of calcium salts such as calcium carbonate, calcium phosphate and calcium fluoride.

You might be interested in
ccording to the Bohr model of the atom, when an electron goes from a higher-energy orbit to a lower-energy orbit, it ________ el
marishachu [46]

Answer:

1. Absorbs electromagnetic energy

2. Energy difference between the two orbits.

Explanation:

Bohr precisely describe the processes of absorption and emission of energy in terms of electronic structure. According to Bohr's model, an electron would absorb energy in the form of photons to get excited to a higher energy level as long as the photon's energy was equal to the energy difference between the initial and final energy levels. After jumping to the higher energy level or the excited state, the excited electron would be in a less stable position, so it would quickly emit a photon to relax back to a lower, more stable energy level.

7 0
3 years ago
Compare the seasons on Titan to the seasons on Earth.
kiruha [24]
Since Titan orbits roughly along Saturn's equatorial plane, and Titan's tilt relative to the sun is about the same as Saturn's, Titan's seasons are on the same schedule as Saturn's—seasons that last more than seven Earth years, and a year that lasts 29 Earth years.
6 0
2 years ago
What is the relationship between living things that depend on
o-na [289]

Answer:

Id say A. Competition, hope this helps

Explanation:

6 0
3 years ago
If there is currently 50kg of U-235 present in Oklo, how much must have been present 750 million years ago when the reaction too
Viefleur [7K]
To answer this question, you need to know the concept of half-life, which is how a radioactive material decreases in mass over time.

The half life of U-235 is 703.8 million years. The first part of this problem is to find the scale factor. To do this, divide the time that has past by the half life, like this:

\frac{750}{703.8}  = 1.066
Now, take this scale factor and multiply it by the current mass, like this:

50 \times 1.066 = 53.3
This number is what you add to the current mass to get the original mass. That is because the scale factor showed us that it was just over one half life. Since after one half life, the mass is cut in half, and this is over one half life, when we add to the original it will be a little over double. This equation illustrates the final addition:

50 + 53.3 = 103.3
I hope this helped you. Fell free to ask any further questions.
7 0
3 years ago
Which scientist invented the first simple Microscope ?
Vinvika [58]

Answer:

D.  Leeuwenhoek

Explanation:

6 0
3 years ago
Other questions:
  • Describe the ph changes expected if an acid is used to neutralize a base with ph12
    13·1 answer
  • Suppose that you add 26.7 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f of 5.12 oC/m. With the adde
    9·1 answer
  • A solution that contains a lower osmotic pressure than thecytoplasm of a cell is called
    12·1 answer
  • Malik formed a hypotheses that an increase in atmospheric oxygen levels by 10% would cause red-legged grasshoppers to grow large
    6·2 answers
  • An element has an atomic number of 78. the number of protons and electrons in a neutral atom of the element would be _____.
    13·1 answer
  • Why is it more accurate to say that the concentration of a solution of acetic acid is 0.01 f rather than 0.01 m?
    9·2 answers
  • 7. An alpha particle is_______
    6·1 answer
  • A compound is a pure substance composed of two or more elements, combined by chemical means, in a definite ratio. Which containe
    5·1 answer
  • Why is water considered a polar molecule?
    6·1 answer
  • How many moles of iron is 3.011 x 10^27 atoms of iron? Please show work if possible
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!