Marcromolecules
In what form do plants store carbohydrates?
starch
The list below represents the estimated chemical composition of the human body. Mineral Salts- 1% Fats and Carbohydrates- 7% Protein- %25 Water- 67% What percentage of the human body is composed of inorganic material?
68%
Cellulose is found in plant cell walls to provide structure. It is a sugar. Which macromolecule would cellulose represent?
Carbohydrates
Of what group of macromolecules is a sugar the simple form?
Carbohydrates
These macromolecules provide quick energy for living things.
Carbohydrates
What statement describes this molecule?
Energy for life processes can be stored within the chemical bonds of both molecules.
What is an organic compound found in most cells?
Glucose
Identify the monomer in the following picture:
Monosaccharide
Most of the chemical reactions occurring in a living cell depend on the presence of what inorganic compound?
Water
Water makes up from 50 percent to 90 percent of a living organism. Most of the rest of the mass consists of a variety of carbon-containing compounds. A valid conclusion that can be drawn from these statements is that living things are composed of
both organic and inorganic matter.
All organic macromolecules _____.
contain carbon
Organisms contain compounds such as proteins, starches, and fats. The chemical bonds in these compounds can be a source of ___.
energy
An energy-rich organic compound needed by organisms is ______.
glucose
The diagram below represents a portion of a starch molecule. The energy in the molecule shown is stored _______.
in the bonds between atoms
Repeating subunits (small building blocks) that make up a macromolecule are called ____.
monomers
The list below represents a sequence of events that occurs in living things. [ x ] l v [are digested into] l v [smaller molecules] l v [which can be synthesized into] l l l l v v v v [fat] [starch] [protein] [DNA] Letter x represents __________.
organic molecules
Organic compounds are used as building blocks for _____.
proteins, carbohydrates, lipids, and nucleic acids
What are the functions of Carbohydrates?
serve as sources of energy and as components of cell structures
The diagram below represents a portion of a starch molecule. The building blocks for the molecule shown are ____
simple sugars
Most of the starch stored in the cells of a potato is composed of molecules that originally entered these cells as
simple sugars.
What type of molecule would be produced by the linking together of many molecules of glucose?
starch
Which organic compound is correctly matched with the subunit that composes it?
starch - glucose
Two examples of carbohydrates are
sugars and starches.
The major role of carbohydrates in the human diet is to ___.
supply energy for the body