1. What atomic sub-particles are responsible for creating the intramolecular bon
ID: 3508721 • Letter: 1
Question
1. What atomic sub-particles are responsible for creating the intramolecular bond between two atoms?
a. protons
b. neutrons
c. electrons
d. nucleus
2. If a solution has a pH of less than 7.0 then it is considered to be
a. acidic
b. neutral
c. basic
d. innate
3. If a solution has a higher NaCl concentration compared to the inside of the cell, then the solution is _____ and the cell will _____.
a. Hypotonic, Shrink
b. Hypertonic, Shrink
c. Isotonic
d. Hypertonic, Swell
e. Hypotonic, Swell
4. Which ion is the most common intracellular cation?
a. K+
b. Na+
c. PO4-
d. Cl-1
5. Which ion is the most common intracellular anion?
a. K+
b. Na+
c. PO4-
d. Cl-1
Explanation / Answer
1. Electrons are sub-atomic particles form the bonds between molecules. The bonds are formed due to sharing of electrons and the bond is known as covalent bond. option c is correct.
2. The pH is the hydrogen ion concentration. The pH less than 7 is known as acidic. The pH more than 7 is known as alkaline.The pH at 7 is called neutral. option a is correct.
3. Higher solute concentration (NaCl) outside the cell than inside and solution is called hypertonic solution. Higher solute concentration causes net movement of water from inside to outside and cell becomes shrinked. option b is correct.
4. The cell is divided into intracellular and extracellular compartments. The major cation in intracellular fluid is potassium (K +) and major cation in extracelular fluid is Sodium (Na+). Option a is correct.
5. The common intracellular anion is PO4- . Cl- is the major anion of extracellular fluid. option c is correct. The cations and anions are exchanged to establish the equilibrium and fluid and electrolyte balance in the human body.
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