Chapter 2, Section 3: Question Preview (ID: 2409)

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___ is sometimes called the blueprints of life.
a) Proteins
b) Water
c) Nucleic acid
d) Phospholipids

The molecule that contains the information on how to make proteins is ___.
a) ATP
b) a phospholipid
c) DNA
d) a carbonhydrate

The subunit of nucleic acids are ___.
a) nucleotides
b) amino acids
c) sugars
d) oils

___ is a complex carbohydrate manufactured by plants.
a) Oil
b) Hemoglobin
c) Starch
d) Protein

The molecule that provides energy for cellular processes is ___.
a) ATP
b) protein
c) RNA
d) DNA

The subunits of proteins are ___.
a) enzymes
b) sugar molecules
c) nucleotides
d) amino acids

Cells do not use ___ for energy storage.
a) fats
b) nucleic acids
c) carbohydrates
d) oils

Which of the following is NOT true of proteins?
a) they are a component of spider webs
b) they protect cells from foreign material
c) they are the primary source of energy for cells
d) they speed up chemical reactions

In the cell membrane, ___ molecules form two layers.
a) phospholipids
b) proteins
c) lipids
d) carbohydrates

___ is the passing of traits from one generation to the next.
a) Homeostasis
b) Heredity
c) Metabolism
d) Photosynthesis

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