Bio 1500- Test 3 Questions and
Answers 100% Pass
Describe an effective experimental design to determine whether an environmental
variable imposes selection on a trait - ✔✔- control group
- manipulate the independent variable
- record dependent variable results
- keep everything the same across the groups except the IV (constant temp,
environment, food, etc.)
How does natural selection affect a phenotype? - ✔✔- natural selection occurs when a
mutation positively affects a population, and thus the population starts to reproduce
with that trait
- a phenotype is a visible trait
- natural selection changes phenotypes in a population
4 classes of organic molecules - ✔✔carbohydrates, lipids, proteins, nucleic acids
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1
, carbohydrates - ✔✔- large group of organic compounds that includes sugars, starch,
and cellulose, and used as structural materials for energy storage
- Monosaccharides, polysaccharides, disaccharides
lipids - ✔✔- fatty acids or their derivatives, insoluble in water but soluble in organic
solvents, non-polar in nature
- triglycerides, saturated fat, unsaturated fat, phospholipids
proteins - ✔✔- large, complex molecules that play many important roles in the body
- enzymes, hormones, actin, casein, myosin
nucleic acids - ✔✔- most important macromolecule, they carry the cell's genetic
blueprint and instructions for its functioning
- DNA, RNA, nucleotides, purines
building blocks of carbohydrates - ✔✔monosaccharides (simple sugars)
building blocks of lipids - ✔✔fatty acids and glycerol
building blocks of proteins - ✔✔amino acids
building blocks of nucleic acids - ✔✔nucleotides
monomer - ✔✔A simple compound whose molecules can join together to form
polymers
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2
Answers 100% Pass
Describe an effective experimental design to determine whether an environmental
variable imposes selection on a trait - ✔✔- control group
- manipulate the independent variable
- record dependent variable results
- keep everything the same across the groups except the IV (constant temp,
environment, food, etc.)
How does natural selection affect a phenotype? - ✔✔- natural selection occurs when a
mutation positively affects a population, and thus the population starts to reproduce
with that trait
- a phenotype is a visible trait
- natural selection changes phenotypes in a population
4 classes of organic molecules - ✔✔carbohydrates, lipids, proteins, nucleic acids
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1
, carbohydrates - ✔✔- large group of organic compounds that includes sugars, starch,
and cellulose, and used as structural materials for energy storage
- Monosaccharides, polysaccharides, disaccharides
lipids - ✔✔- fatty acids or their derivatives, insoluble in water but soluble in organic
solvents, non-polar in nature
- triglycerides, saturated fat, unsaturated fat, phospholipids
proteins - ✔✔- large, complex molecules that play many important roles in the body
- enzymes, hormones, actin, casein, myosin
nucleic acids - ✔✔- most important macromolecule, they carry the cell's genetic
blueprint and instructions for its functioning
- DNA, RNA, nucleotides, purines
building blocks of carbohydrates - ✔✔monosaccharides (simple sugars)
building blocks of lipids - ✔✔fatty acids and glycerol
building blocks of proteins - ✔✔amino acids
building blocks of nucleic acids - ✔✔nucleotides
monomer - ✔✔A simple compound whose molecules can join together to form
polymers
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2
