Describe the characteristics that distinguish living organisms from non-living matter 1. Which of the following is a living subunit of human beings?

Describe the characteristics that
distinguish living organisms from non-living matter
1. Which of the following is a living subunit of
human beings?

a. cells
b. atoms
c. metabolism
d. homeostasis
e. The term “the molecules of life” refers to
f. molecules that contain carbon, nitrogen, and
oxygen
g. the four major classes of molecules present
in living organisms
h. organic molecules
i. molecules that can convert a substance from
non-living to living
2. Which of the following is considered to be a
“molecule of life”?
a. carbohydrates
b. lipids
c. proteins
d. all of the above
3. You have discovered a new substance. This
substance has the following properties: a) it is composed of atoms
and chemicals, organized in an orderly fashion, b) it does not
contain DNA or cells, and c) there do not appear to be any active
chemical reactions in the substance. Which of the following is the
best conclusion to make at this time?
a. This substance is not alive.
b. This substance is alive.
c. This substance is party living and partly
non-living.
d. This substance is likely to reproduce.
4. Which of the following characteristics would
you expect a cell to have?
a. sense and respond to its environment
b. reproduce to create offspring cells
c. use and produce the molecules it needs
through chemical reactions
d. all of the above
5. Proteins, carbohydrates, lipids, and nucleic
acids are all similar in which of the following ways?
a. They contain ions
b. They act as hormones
c. They all have a carbon backbone.
d. They can all be broken down into sugars
Objective 2 – Describe how nature is organized,
proceeding from simple to increasingly complex types of
organization
1. Which of the following items is the
smallest?
a. atom
b. subatomic particle
c. molecule
d. cell
2. Which of the following represents a more
complex level of organization than the others?
a. organelles
b. molecules
c. cells
d. atoms
Objective 3 – Explain why a basic understanding of
chemistry is important in the study of living things.
1. An understanding of chemistry is important
when studying living organisms for which of the following
reasons?
a. Living organisms are built from chemical
substances.
b. Living organisms use chemical substances to
respond to changes in their environment.
c. Living organisms use internal chemical
reactions to survive and regulate themselves.
d. all of the above
Objective 4 – Describe the basic structure of an
atom.
1. Which of the following subatomic particles is
electrically charged?
a. electron

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