BSC 1005 Exam 1 Review EXAM 2025/2026 Actual Complete
Real Exam Questions & Correct Answers | Already Graded
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Relationship between carbon dioxide in atmosphere and
temperature - ANSWER-When the carbon dioxide concentration
goes up, temperature goes up. When the carbon dioxide
concentration goes down, temperature goes down.
How is ocean acidification related to carbon dioxide in the
atmosphere? -
ANSWER-• CO2 in air is absorbed by
the oceans
• ~25% of CO2 from
atmosphere
• Reactions of CO2 with water increases the acidity
of seawater
What types of organisms are most threatened by ocean
acidification? Why? -
ANSWER-ocean acidification reduces fertilization, survival
and recruitment of
coral
larvae
• Decreased concentration of carbonate
ions (CO3 2- )
•Carbonate ions needed to produce skeletons,
protective shells
,What is the purpose of ozone in the atmosphere? - ANSWER-
Ozone is a gas in
the atmosphere that protects everything living on the
Earth from harmful
ultraviolet (UV) rays from the Sun. Without the layer of
ozone in the
atmosphere, it would be very difficult for anything to survive
on the surface
What is the correct order of the flow of information to
make proteins? -
ANSWER-DNA to RNA to
Protein
What are the monomers of proteins? - ANSWER-amino acid
4 Levels of Protein Structure
-Primary
-Secondary -
Tertiary
-Quaternary - ANSWER-1. primary shape- amino acid units.
2. secondary structure is the result of hydrogen bonding,
helix and pleated sheet.
3. tertiary structure, hydrophobic interactions, polypeptide
backbone, overall 3D shape, results from interactions of the R
groups.
, 4. Quaternary structure. Beta chains, hama units with iron
atoms, alpha chains, hemoglobin, combination of 2+
polypeptides
What are the monomers of carbohydrates? - ANSWER-
monosaccharides
Examples of Monosaccharides, Disaccharides, and
Polysaccharides -
ANSWER-• Glucose, fructose,
galactose
• Lactose,
sucrose
• Starch, Glucose monomers, Storage in plants, Glycogen,
Glucose monomers
Lactose Intolerance -
What is it?
-Why does it occur? - ANSWER-reaction to breakdown lactose
catalyzed by enzyme lactase
Lactose Intolerance= common in people of African, Native
Americans, and Asian descent. People in warmer climates were
plant dependent and didnt need the gene, unlike most
europeans
Atom - ANSWER-Smallest particle of an element
Element - ANSWER-A substance that cannot be broken
down into other
Real Exam Questions & Correct Answers | Already Graded
A+ | Newest Exam | Just Released!!
Relationship between carbon dioxide in atmosphere and
temperature - ANSWER-When the carbon dioxide concentration
goes up, temperature goes up. When the carbon dioxide
concentration goes down, temperature goes down.
How is ocean acidification related to carbon dioxide in the
atmosphere? -
ANSWER-• CO2 in air is absorbed by
the oceans
• ~25% of CO2 from
atmosphere
• Reactions of CO2 with water increases the acidity
of seawater
What types of organisms are most threatened by ocean
acidification? Why? -
ANSWER-ocean acidification reduces fertilization, survival
and recruitment of
coral
larvae
• Decreased concentration of carbonate
ions (CO3 2- )
•Carbonate ions needed to produce skeletons,
protective shells
,What is the purpose of ozone in the atmosphere? - ANSWER-
Ozone is a gas in
the atmosphere that protects everything living on the
Earth from harmful
ultraviolet (UV) rays from the Sun. Without the layer of
ozone in the
atmosphere, it would be very difficult for anything to survive
on the surface
What is the correct order of the flow of information to
make proteins? -
ANSWER-DNA to RNA to
Protein
What are the monomers of proteins? - ANSWER-amino acid
4 Levels of Protein Structure
-Primary
-Secondary -
Tertiary
-Quaternary - ANSWER-1. primary shape- amino acid units.
2. secondary structure is the result of hydrogen bonding,
helix and pleated sheet.
3. tertiary structure, hydrophobic interactions, polypeptide
backbone, overall 3D shape, results from interactions of the R
groups.
, 4. Quaternary structure. Beta chains, hama units with iron
atoms, alpha chains, hemoglobin, combination of 2+
polypeptides
What are the monomers of carbohydrates? - ANSWER-
monosaccharides
Examples of Monosaccharides, Disaccharides, and
Polysaccharides -
ANSWER-• Glucose, fructose,
galactose
• Lactose,
sucrose
• Starch, Glucose monomers, Storage in plants, Glycogen,
Glucose monomers
Lactose Intolerance -
What is it?
-Why does it occur? - ANSWER-reaction to breakdown lactose
catalyzed by enzyme lactase
Lactose Intolerance= common in people of African, Native
Americans, and Asian descent. People in warmer climates were
plant dependent and didnt need the gene, unlike most
europeans
Atom - ANSWER-Smallest particle of an element
Element - ANSWER-A substance that cannot be broken
down into other
