Portage Learning- BIOD 101 Exam 1 |\ |\ |\ |\ |\ |\
QUESTIONS WITH ANSWERS |\ |\
What is matter and what states can it exist in? - CORRECT
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ANSWERS ✔✔Matter is anything that takes up space, by having
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
volume, and has mass. Can exist in a solid, liquid, or gaseous
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
state.
Explain the difference between essential and trace elements -
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CORRECT ANSWERS ✔✔Essential elements are required for
|\ |\ |\ |\ |\ |\ |\
human life. Trace elements are only required in small quantities
|\ |\ |\ |\ |\ |\ |\ |\ |\
Describe an ionic bond - CORRECT ANSWERS ✔✔formed when
|\ |\ |\ |\ |\ |\ |\ |\ |\
ions of molecules of opposite charge are attracted to one another
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Describe a covalent bond - CORRECT ANSWERS ✔✔formed when
|\ |\ |\ |\ |\ |\ |\ |\ |\
electrons are shared equally between two atoms to complete the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
valence shells of both |\ |\ |\
Describe a hydrogen bond - CORRECT ANSWERS ✔✔formed by
|\ |\ |\ |\ |\ |\ |\ |\ |\
electrostatic interactions between molecules- relatively weak and
|\ |\ |\ |\ |\ |\
breaks easily
|\ |\
True or False: Anions are positive charged ions whereas cations
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
are negatively charged ions. - CORRECT ANSWERS ✔✔False:
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cations are positively charged ions whereas anions are negatively
|\ |\ |\ |\ |\ |\ |\ |\
charged ions
|\ |\
, Which of the following is not one of the organic compounds that
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
make up a biomacromolecule; lipids, proteins, ribosomes, or
|\ |\ |\ |\ |\ |\ |\ |\
carbohydrates - CORRECT ANSWERS ✔✔Ribosomes |\ |\ |\ |\
What are carbohydrates? - CORRECT ANSWERS ✔✔Carbohydrates
|\ |\ |\ |\ |\ |\
are the primary source of fuel for organisms and have the same
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
three elements in their structure; carbon, hydrogen, oxygen
|\ |\ |\ |\ |\ |\ |\
Why are lipids unique among the biomacromolecules? - CORRECT
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ANSWERS ✔✔They are unique because most of them are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
insoluble in water. Lipids also are not monomers and instead are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
assembled from smaller molecules that are chemically linked
|\ |\ |\ |\ |\ |\ |\ |\
together
Why are lipids insoluble in water? - CORRECT ANSWERS ✔✔Lipids
|\ |\ |\ |\ |\ |\ |\ |\ |\
are insoluble in water because they are made of non polar
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
hydrocarbon chains. Water is polar meaning that it can only
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
dissolve other polar or ionically bonded substances.
|\ |\ |\ |\ |\ |\
How are phospholipids arranged? - CORRECT ANSWERS
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✔✔Phospholipids are made up of a hydrophilic head and a |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
hydrophobic tail. |\
Name the functions of proteins as mentioned in the module -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Can act as enzymes and regulate
|\ |\ |\ |\ |\ |\ |\ |\
metabolic functions, store amino acids, act as hormones, form
|\ |\ |\ |\ |\ |\ |\ |\ |\
antibodies for immunological defense, act as carriers for
|\ |\ |\ |\ |\ |\ |\ |\
transport and the formation of membrane channels, form cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
QUESTIONS WITH ANSWERS |\ |\
What is matter and what states can it exist in? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Matter is anything that takes up space, by having
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
volume, and has mass. Can exist in a solid, liquid, or gaseous
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
state.
Explain the difference between essential and trace elements -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Essential elements are required for
|\ |\ |\ |\ |\ |\ |\
human life. Trace elements are only required in small quantities
|\ |\ |\ |\ |\ |\ |\ |\ |\
Describe an ionic bond - CORRECT ANSWERS ✔✔formed when
|\ |\ |\ |\ |\ |\ |\ |\ |\
ions of molecules of opposite charge are attracted to one another
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Describe a covalent bond - CORRECT ANSWERS ✔✔formed when
|\ |\ |\ |\ |\ |\ |\ |\ |\
electrons are shared equally between two atoms to complete the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
valence shells of both |\ |\ |\
Describe a hydrogen bond - CORRECT ANSWERS ✔✔formed by
|\ |\ |\ |\ |\ |\ |\ |\ |\
electrostatic interactions between molecules- relatively weak and
|\ |\ |\ |\ |\ |\
breaks easily
|\ |\
True or False: Anions are positive charged ions whereas cations
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
are negatively charged ions. - CORRECT ANSWERS ✔✔False:
|\ |\ |\ |\ |\ |\ |\ |\
cations are positively charged ions whereas anions are negatively
|\ |\ |\ |\ |\ |\ |\ |\
charged ions
|\ |\
, Which of the following is not one of the organic compounds that
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
make up a biomacromolecule; lipids, proteins, ribosomes, or
|\ |\ |\ |\ |\ |\ |\ |\
carbohydrates - CORRECT ANSWERS ✔✔Ribosomes |\ |\ |\ |\
What are carbohydrates? - CORRECT ANSWERS ✔✔Carbohydrates
|\ |\ |\ |\ |\ |\
are the primary source of fuel for organisms and have the same
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
three elements in their structure; carbon, hydrogen, oxygen
|\ |\ |\ |\ |\ |\ |\
Why are lipids unique among the biomacromolecules? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔They are unique because most of them are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
insoluble in water. Lipids also are not monomers and instead are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
assembled from smaller molecules that are chemically linked
|\ |\ |\ |\ |\ |\ |\ |\
together
Why are lipids insoluble in water? - CORRECT ANSWERS ✔✔Lipids
|\ |\ |\ |\ |\ |\ |\ |\ |\
are insoluble in water because they are made of non polar
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
hydrocarbon chains. Water is polar meaning that it can only
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
dissolve other polar or ionically bonded substances.
|\ |\ |\ |\ |\ |\
How are phospholipids arranged? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔Phospholipids are made up of a hydrophilic head and a |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
hydrophobic tail. |\
Name the functions of proteins as mentioned in the module -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Can act as enzymes and regulate
|\ |\ |\ |\ |\ |\ |\ |\
metabolic functions, store amino acids, act as hormones, form
|\ |\ |\ |\ |\ |\ |\ |\ |\
antibodies for immunological defense, act as carriers for
|\ |\ |\ |\ |\ |\ |\ |\
transport and the formation of membrane channels, form cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
