BIOD 101 Module 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
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volume and mass. It can exist in solid, liquid, or gaseous states.
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Explain the difference between essential and trace elements. -
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CORRECT ANSWERS ✔✔Essential elements are required for
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human life. Trace elements are required only in small quantities.
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Ionic bond - CORRECT ANSWERS ✔✔Generated based on the
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attraction between two oppositely charged particles
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Covalent bond - CORRECT ANSWERS ✔✔Occurs when electrons
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are shared by two atoms to create the valence shells of both
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Hydrogen bond - CORRECT ANSWERS ✔✔Forms a relatively weak
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bond that is easily broken
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Anions - CORRECT ANSWERS ✔✔Negatively charged ions
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Cations - CORRECT ANSWERS ✔✔Positively charged ions
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, What organic compounds make up biomacromolecules -
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CORRECT ANSWERS ✔✔Carbohydrates, lipids, proteins, nucleic
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acids
What are carbohydrates - CORRECT ANSWERS ✔✔commonly
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referred to as sugars; primary source of fuel for organisms and
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have the same three elements in their main structure (C, H, O)
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Why are lipids unique among biomacromolecules - CORRECT
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ANSWERS ✔✔Most are insoluble in water. They are not
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monomers, but are assembled from smaller molecules that are
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chemically linked together. |\ |\
Why are lipids insoluble in water - CORRECT ANSWERS ✔✔They
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are made of mostly non-polar hydrocarbon chains. Water can
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only dissolve other polar or ionically bonded substances.
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Describe the structure of a phospholipid - CORRECT ANSWERS
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✔✔They contain two main components: a polar head joined to a
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non-polar tail. The head group is attracted to polar substances
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and is hydrophilic. The tail group repels water and is
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hydrophobic.
7 functions of proteins - CORRECT ANSWERS ✔✔act as enzymes
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and regulate metabolic functions, store amino acids, act as
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hormones, form antibodies for immunological defense, act as
|\ |\ |\ |\ |\ |\ |\ |\
carriers for transport and also from membrane channels, form
|\ |\ |\ |\ |\ |\ |\ |\ |\
cell surface receptors to receive chemical messages, and act as
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
structural molecules for support and movement |\ |\ |\ |\ |\
ANSWERS
What is matter, and what states can it exist in? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Matter is anything that takes up space by having
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
volume and mass. It can exist in solid, liquid, or gaseous states.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Explain the difference between essential and trace elements. -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Essential elements are required for
|\ |\ |\ |\ |\ |\ |\
human life. Trace elements are required only in small quantities.
|\ |\ |\ |\ |\ |\ |\ |\ |\
Ionic bond - CORRECT ANSWERS ✔✔Generated based on the
|\ |\ |\ |\ |\ |\ |\ |\ |\
attraction between two oppositely charged particles
|\ |\ |\ |\ |\
Covalent bond - CORRECT ANSWERS ✔✔Occurs when electrons
|\ |\ |\ |\ |\ |\ |\ |\
are shared by two atoms to create the valence shells of both
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Hydrogen bond - CORRECT ANSWERS ✔✔Forms a relatively weak
|\ |\ |\ |\ |\ |\ |\ |\ |\
bond that is easily broken
|\ |\ |\ |\
Anions - CORRECT ANSWERS ✔✔Negatively charged ions
|\ |\ |\ |\ |\ |\
Cations - CORRECT ANSWERS ✔✔Positively charged ions
|\ |\ |\ |\ |\ |\
, What organic compounds make up biomacromolecules -
|\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Carbohydrates, lipids, proteins, nucleic
|\ |\ |\ |\ |\ |\
acids
What are carbohydrates - CORRECT ANSWERS ✔✔commonly
|\ |\ |\ |\ |\ |\ |\
referred to as sugars; primary source of fuel for organisms and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
have the same three elements in their main structure (C, H, O)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Why are lipids unique among biomacromolecules - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Most are insoluble in water. They are not
|\ |\ |\ |\ |\ |\ |\ |\ |\
monomers, but are assembled from smaller molecules that are
|\ |\ |\ |\ |\ |\ |\ |\ |\
chemically linked together. |\ |\
Why are lipids insoluble in water - CORRECT ANSWERS ✔✔They
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
are made of mostly non-polar hydrocarbon chains. Water can
|\ |\ |\ |\ |\ |\ |\ |\ |\
only dissolve other polar or ionically bonded substances.
|\ |\ |\ |\ |\ |\ |\
Describe the structure of a phospholipid - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔They contain two main components: a polar head joined to a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
non-polar tail. The head group is attracted to polar substances
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and is hydrophilic. The tail group repels water and is
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
hydrophobic.
7 functions of proteins - CORRECT ANSWERS ✔✔act as enzymes
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and regulate metabolic functions, store amino acids, act as
|\ |\ |\ |\ |\ |\ |\ |\ |\
hormones, form antibodies for immunological defense, act as
|\ |\ |\ |\ |\ |\ |\ |\
carriers for transport and also from membrane channels, form
|\ |\ |\ |\ |\ |\ |\ |\ |\
cell surface receptors to receive chemical messages, and act as
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
structural molecules for support and movement |\ |\ |\ |\ |\
