BIO 201 Anatomy and physiology 1 BEST EXAM Questions with 100% verified answers 2022/2023 update

BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update
Topic 2

Question 1

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Question text

Isotopes of the same element have



Select one:

a. the same number of neutrons but different numbers of protons.

b. different numbers of protons and electrons.

c. the same mass number.

d. the same atomic number but differ in their mass numbers. Correct

e. no mass

number. Feedback

The correct answer is: the same atomic number but differ in their mass numbers.

Question 2

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Question text

The mass number of an atom is the number of



Select one:

a. protons in the atom.

b. neutrons in the atom.

BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update

, BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update
c. protons plus electrons in the atom.

d. electrons plus neutrons in the atom. Incorrect

e. neutrons plus protons in the atom.
Feedback

The correct answer is: neutrons plus protons in the atom.

Question 3

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Question text

Sodium chloride is considered a(n)



Select one:

a. molecule.

b. compound. Correct

c. molecule and a compound.

d. element.

e. ion.

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The correct answer is:

compound. Question 4

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Question text

Covalent bonds form when


BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update

, BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update
Select one:

a. atomic nuclei fuse.

b. molecules become ionized.

c. neutrons are transferred from one atom to another.

d. protons are lost from atoms.
e. electrons are shared between two atoms.

Correct Feedback

The correct answer is: electrons are shared between two atoms.

Question 5

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Question text

The number of atoms in exactly 12 grams of carbon-12 is called



Select one:

a. Dalton's number.

b. Socrates's number.

c. Avogadro's number. Correct

d. Pasteur's number.

e. Le Chatelier's

number. Feedback

The correct answer is: Avogadro's

number. Question 6

Incorrect

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BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update

, BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update
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Question text

If the products of a chemical reaction contain less potential energy than the reactants,



Select one:

a. energy has been stored in the molecular bonds of the product.

b. energy has been released by the breaking of molecular bonds.

c. the reaction will be reversible without additional energy input.
d. a synthesis reaction is likely to have occurred.

e. All of these choices are correct.

Incorrect Feedback

The correct answer is: energy has been released by the breaking of molecular bonds.

Question 7

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Question text

An atom of chlorine has 17 protons and 18 neutrons. Which of the following statements is true?



Select one:

a. Chlorine atoms have 18 electrons.

b. Chlorine has a mass number of 35. Correct

c. Chlorine has an atomic number of 18.

d. Chlorine has 35 electrons.

e. Chlorine has an atomic number of

35. Feedback


BIO 201 Anatomy and physiology 1 BEST EXAM
Questions with 100% verified answers 2022/2023
update