Question 1

Which of the following is NOT generally considered a defining feature of life?

Accepted Answer

the capacity to be disorganized

Question 2

When amino acids are joined together to make an enzyme, the enzyme can speed up the rate of specific chemical reactions. What biological theme does this illustrate?

Accepted Answer

emergent properties

Question 3

All the living things on your campus make up:

Accepted Answer

a community

Question 4

Which statement about ecological organization is correct?

Accepted Answer

An organism is part of a community.

Question 5

What is the correct order for biological organization from the least to the most complex?

Accepted Answer

molecule, organelle, cell, tissue, organ, organism, population, community, ecosystem, biosphere

Question 6

Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?

Accepted Answer

the use of DNA as the information-storage molecule

Question 7

Which of the three domains of life is (are) comprised of prokaryotic organisms?

Accepted Answer

Bacteria and Archaea

Question 8

Plants and other photosynthetic organisms act as ________ of chemical potential energy. Animals and other organisms that eat plants and other organisms are known as _________.

Accepted Answer

producers; consumers

Question 9

Which of the following is NOT a premise of evolution by natural selection?

Accepted Answer

Individuals with traits that are poorly suited to their environment are more likely to survive and reproduce

Question 10

For a hypothesis to be useful in science, which of the following must be true?

Accepted Answer

it must be testable and falsifiable

Question 11

The most common isotope of oxygen has 8 protons, 8 neutrons, and 8 electrons. What is the atomic mass of this isotope of oxygen?

Accepted Answer

16 daltons

Question 12

Changing the number of _______ would change an atom into an atom of a different element.

Accepted Answer

protons in an atom

Question 13

An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many protons, neutrons, and electrons does boron have?

Accepted Answer

5 protons, 6 neutrons, 5 electrons

Question 14

If an atom has a charge of +1, which of the following must be true?

Accepted Answer

It has one more proton than it does electrons.

Question 15

The type of bonding and the number of covalent bonds an atom can form with other atoms is determined by __________.

Accepted Answer

the number of unpaired electrons in the valence shell

Question 16

Under which of the following conditions will an atom be the most stable?

Accepted Answer

when all the electron orbitals in the valence shell are filled

Question 17

How is a single covalent bond formed?

Accepted Answer

two atoms share two electrons

Question 18

A covalent bond is likely to be polar under which of the following conditions?

Accepted Answer

one of the atoms sharing electrons is more electronegative than the other atom

Question 19

Hydrogen bonding is most often seen __________.

Accepted Answer

when hydrogen is covalently bonded to an electronegative atom

Question 20

In table salt, what type of bond exists between sodium and chloride?

Accepted Answer

ionic

Question 21

Which of the following characteristics is responsible for the complexity and variety of organic molecules?

Accepted Answer

the chemical versatility of carbon atoms

Question 22

Which functional group is commonly used in cells to transfer energy from one organic molecule to another?

Accepted Answer

phosphate

Question 23

Adenosine triphosphate (ATP) is necessary for life because ________.

Accepted Answer

it is the principal energy carrying molecule in a cell

Question 24

We can be sure that a mole of table sugar and a mole of vitamin C are equal in their

Accepted Answer

number of molecules

Question 25

Refer to the two molecules shown in the first image. What is the relationship between these two molecules?

Accepted Answer

they are structural isomers

Question 26

In the second image, what is the functional group attached to the central carbon that contains a nitrogen atom?

Accepted Answer

amino

Study Guidance for BIOS 1083 Test 1B: Functional Groups and Isomerism

Study Guide - Practice Questions

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