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Chapter 6
Review for Test
43
Biology
11th Grade
01/30/2012

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Term
In the enzyme lab what happens when the potato was boiled?
Definition
it is destroyed
Term
important in the contracting muscle tissue, transporting oxygen in the bloodstream, providing immunity, cell metabolism.
Definition
protein
Term
used by cells to store and release energy
Definition
carbohydrate
Term
used by cells for long term energy storage, insulation and protective coatings
Definition
lipids
Term
is a complex molecule that stores information in the form of a code
Definition
nucleic acid
Term
lipid
Definition
glycerol and 3 fatty acids
Term
protein
Definition
amino acids
Term
nucleic acid
Definition
nucleotide
Term
carbohydrates
Definition
monosaccharides
Term
all the chemical reactions that take place within an organism
Definition
metabolism
Term
is any substance that forms hydrogen ions in the water
Definition
acid
Term
is another name for enzyme
Definition
organic catalyst
Term
is any substance that forms hydroxide ions in the water
Definition
base
Term
measures how acidic or basic a substance is
Definition
pH
Term
positive color for sugar
Definition
brick-red
Term
positive test for lipid
Definition
greasy oil spot
Term
positive color for starch
Definition
blue-black
Term
Name the three elements present in carbohydrates
Definition
carbon, hydrogen, oxygen
Term
The simplest type of carbohydrate is known as a
Definition
monosaccharide
Term
Two monosaccharides bond together to form a
Definition
disaccharide
Term
What are three examples of polysaccharides?
Definition
cellulose, starch, and glycogen
Term
what are the elements found in proteins
Definition
carbon, hydrogen, oxygen, and nitrogen
Term
amino acids join to form
Definition
chains
Term
how many different amino acids are there?
Definition
20
Term
_________ are functional and take part in chemical reactions and transporting material.
Definition
proteins
Term
Fats and oils are examples of:
Definition
lipids
Term
_______ are found as fats in animals and as oils in plants
Definition
lipids
Term
__________ store energy from excess foods. They may also insulate and waterproof organisms.
Definition
Lipids
Term
Name the elements found in nucleic acids.
Definition
carbon, oxygen, hydrogen, nitrogen, and phosphorus
Term
Which of the following types of molecules provides building blocks for tissues, transports other molecules, and helps to regulate certain reactions in the human body
Definition
proteins
Term
Which of the following types of molecules has the primary function of providing a rapidly available energy source for living things
Definition
carbohydrates
Term
An ___________ is an organic catalyst that controls the rate of chemical reactions within cells
Definition
enzyme
Term
Enzymes are _____________
Definition
proteins
Term
The reactants of enzymes are called ________.
Definition
substrates
Term
The substrate binds to a part of the enzyme called the _______.
Definition
active site
Term
The shape of the substrate and the shape of active site are ______
Definition
specific
Term
Enzymes fit together much like a __________ and ___________.
Definition
lock and key
Term
Name the two factors that affect enzymes
Definition
temperature and pH
Term
What happens to enzymes above 45 degrees- 50 degrees Celsius?
Definition
they are completely destroyed
Term
To maintain pH at the appropriate levels, organisms contain substances called ______.
Definition
buffers
Term
Why are enzymes important to the functioning of the human body?
Definition
They help essential biochemical reactions to occur fast enough to maintain homeostasis.
Term
What is the name of the region at which reactants bind to an enzyme during biochemical reaction?
Definition
active site
Term
How are enzymes able to speed up biochemical reactions?
Definition
They lower the activation energy of the reaction.
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