Life 120 Exam #1 UNL questions with
100% correct answers rated A+
small and hydrophobic - correct answer ✔✔ What kinds of molecules pass through a cell
membrane most easily?
-OH - correct answer ✔✔ Which functional group is characteristic of alcohols?
phospholipids and proteins - correct answer ✔✔ What types of molecules are the major
structural components of the cell membrane?
transmission electronic microscope - correct answer ✔✔ When biologists wish to study the
internal ultrastructure of cells, they can achieve the finest resolution by using what type of
microscope
triglyceride/phospholipid bilayer - correct answer ✔✔ What would be not an example of a
monomer/polymer pairing?
on the inside surface of the vesicle - correct answer ✔✔ In receptor-mediated endocytosis,
receptor molecules initially project to the outside of the cell. Where do they end up after
endocytosis?
the existence of unpaired electrons in the valence shell. - correct answer ✔✔ The reactivity of
an atom arises from what
move vesicles around the cell - correct answer ✔✔ Cytochalasin D is a drug that prevents actin
polymerization. A cell treated with cytochalasin D will still be able to do what activity
, carboxyl - correct answer ✔✔ What is the name of the functional group -COOH
carboxyl - correct answer ✔✔ Which chemical group can act as an acid?
nonpolar substances that repel water molecules - correct answer ✔✔ Hydrophobic substances
such as vegetable oil are what types of molecules with what behavior
both proteins and nucleic acids - correct answer ✔✔ If cells are grown in a medium containing
radioactive 15N, which of these molecules will be labeled?
a mitochondrion. - correct answer ✔✔ The smallest cell structure that would most likely be
visible with a standard (not super-resolution) research-grade light microscope is
proteins - correct answer ✔✔ If cells are grown in a medium containing radioactive 35S, which
of these molecules will be labeled?
the release of a water molecule - correct answer ✔✔ The bonding of two amino acid molecules
to form a larger molecule requires the release/ addition of what
4 - correct answer ✔✔ How many electron pairs does carbon share in order to complete its
valence shell?
are decomposed into their subunits by dehydration reactions - correct answer ✔✔
Polysaccharides, triacylglycerides, and proteins are similar in that they
fatty acids - correct answer ✔✔ Which of these molecules isnot formed by dehydration
reactions?
100% correct answers rated A+
small and hydrophobic - correct answer ✔✔ What kinds of molecules pass through a cell
membrane most easily?
-OH - correct answer ✔✔ Which functional group is characteristic of alcohols?
phospholipids and proteins - correct answer ✔✔ What types of molecules are the major
structural components of the cell membrane?
transmission electronic microscope - correct answer ✔✔ When biologists wish to study the
internal ultrastructure of cells, they can achieve the finest resolution by using what type of
microscope
triglyceride/phospholipid bilayer - correct answer ✔✔ What would be not an example of a
monomer/polymer pairing?
on the inside surface of the vesicle - correct answer ✔✔ In receptor-mediated endocytosis,
receptor molecules initially project to the outside of the cell. Where do they end up after
endocytosis?
the existence of unpaired electrons in the valence shell. - correct answer ✔✔ The reactivity of
an atom arises from what
move vesicles around the cell - correct answer ✔✔ Cytochalasin D is a drug that prevents actin
polymerization. A cell treated with cytochalasin D will still be able to do what activity
, carboxyl - correct answer ✔✔ What is the name of the functional group -COOH
carboxyl - correct answer ✔✔ Which chemical group can act as an acid?
nonpolar substances that repel water molecules - correct answer ✔✔ Hydrophobic substances
such as vegetable oil are what types of molecules with what behavior
both proteins and nucleic acids - correct answer ✔✔ If cells are grown in a medium containing
radioactive 15N, which of these molecules will be labeled?
a mitochondrion. - correct answer ✔✔ The smallest cell structure that would most likely be
visible with a standard (not super-resolution) research-grade light microscope is
proteins - correct answer ✔✔ If cells are grown in a medium containing radioactive 35S, which
of these molecules will be labeled?
the release of a water molecule - correct answer ✔✔ The bonding of two amino acid molecules
to form a larger molecule requires the release/ addition of what
4 - correct answer ✔✔ How many electron pairs does carbon share in order to complete its
valence shell?
are decomposed into their subunits by dehydration reactions - correct answer ✔✔
Polysaccharides, triacylglycerides, and proteins are similar in that they
fatty acids - correct answer ✔✔ Which of these molecules isnot formed by dehydration
reactions?
