Bio 201 Final Exam Latest Updated 2024 With Complete Solutions
6 views 0 purchase
Course
Bio 201
Institution
Bio 201
Bio 201 Final Exam Latest Updated 2024 With Complete Solutions
Glycogen is to animal cells as ________ is to plant cells. - ANSWER-starch
______ is a polymer of glucose - ANSWER-Cellulose
A disaccharide, such as maltose, consists of two molecules of glucose linked by what type of bond? - A...
Bio 201 Final Exam Latest Updated 2024 With
Complete Solutions
Glycogen is to animal cells as ________ is to plant cells. - ANSWER-starch
______ is a polymer of glucose - ANSWER-Cellulose
A disaccharide, such as maltose, consists of two molecules of glucose linked by what
type of bond? - ANSWER-glycosidic
Fats and fatty acids - ANSWER-are insoluble in water.
The major class of macromolecules that stores energy and makes up the major
component of plasma membranes are - ANSWER-lipids
A phospholipid has ________ fatty acids attached to glycerol, whereas a fat has
________. - ANSWER-2; 3
The portion of an amino acid that makes the amino acid unique among the 20 different
amino acids is - ANSWER-the side chain or R-group.
An amino acid is to a protein as a ________ is to a nucleic acid. - ANSWER-nucleotide
In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-25
nanometers in diameter the type of microscopy that would be most effective is -
ANSWER-transmission electron microscopy.
Prokaryotes, such as bacterial cells, differ from eukaryotes in that eukaryotes -
ANSWER-possess membrane-bound organelles.
FtsZ, MreB, and CreS proteins regulate the shape and structure of bacterial
(prokaryote) cells. These proteins are homologous to the ________ in eukaryotes. -
ANSWER-cytoskelaton
Proteins are largely responsible for the traits of living organisms, while ________
provides the blueprint for the organization, development, and function of living things. -
ANSWER-DNA
What feature of genetic mutations can eventually lead to the evolution of new species? -
ANSWER-Mutations produce changes in the DNA sequence of a gene.
The complete genetic composition of an organism is called its - ANSWER-genome.
,A researcher decides to test the scientific validity of the common phrase "An apple a
day keeps the doctor away." What would be a valid hypothesis to investigate this
specific question? - ANSWER-The daily consumption of a single apple does not change
the number of visits to the doctor.
Tritiated hydrogen (3H) differs from hydrogen (1H) in that - ANSWER-) 3H has 2 more
neutrons than 1H
When one atom loses an electron to another atom, it results in the formation of -
ANSWER-cations and anions that can form ionic bonds.
What type of bonding is likely to occur between two water molecules or strands of DNA?
- ANSWER-covalent
Carbon and hydrogen have similar electronegativities and combine together to form
hydrocarbon molecules. What type of bonds form between these atoms? - ANSWER-
nonpolar covalent
Amphipathic molecules - ANSWER-possess both hydrophilic and hydrophobic
properties.
If orange juice has a pH of 4, then it can be described as - ANSWER-an acidic solution
The addition of a strong acid like HCl to an aqueous solution would result in - ANSWER-
a decrease in pH
Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8.
- ANSWER-The solution with a pH of 6 has a 100 times higher concentration of
hydrogen ions than a solution with a pH of 8.
A dehydration reaction - ANSWER-is used to form polymers
Ribosomes are the structures in the cell that produce - ANSWER-proteins
The route that most accurately describes secretory protein movement through the
endomembrane system would be - ANSWER-rough endoplasmic reticulum→vesicles→
Golgi apparatus→vesicles →plasma membrane.
Cyanide binds and impairs one of the molecules involved in the synthesis of ATP. The
target organelle for cyanide must be - ANSWER-mitochondria.
The cytoskeletal structure(s) that are composed of actin and regulate cell shape, cell
movement, and muscle contraction include - ANSWER-microfilaments.
, When one oxygen atom shares two pairs of electrons with another oxygen atom, O2 is
formed via a(n) - ANSWER-double covalent bond.
The nucleus of an atom is composed of ________________A) protons. - ANSWER-
protons and neutrons.
Which of the following is not true of water? - ANSWER-It is a relatively poor solvent.
What is the chemical mechanism by which cells break down polymers? - ANSWER-
hydrolysis
Which of the following descriptions best fits the class of molecules known as
nucleotides? - ANSWER-a nitrogenous base, a phosphate group, and a pentose sugar
Which of the following best describes the flow of information in eukaryotic cells? -
ANSWER-DNA → RNA → proteins
Calcium has an atomic number of 20 and an atomic mass of 40. Therefore, a calcium
atom must have ______ - ANSWER-20 protons
Which of the following solutions has the greatest concentration of hydroxide ions [OH-] -
ANSWER-household bleach at pH 12
What is the valence of an atom with an atomic number of 9 - ANSWER-1
An example of a non-polar covalent bond is the bond between ______ - ANSWER-
carbon and hydrogen in methane (CH4).
Polysaccharides and proteins are similar in that they ____ - ANSWER-are synthesized
from monomers by dehydration reactions.
Which bond is a peptide bond? - ANSWER-C
How many electrons does sulfur have in its valence shell? - ANSWER-6
The molecular formula of a polysaccharide that is made up of 4 glucose (C6H12O6)
monomers is _____ - ANSWER-C24H42O21
Oxygen has an atomic number of 8. What is the valence of an oxygen atom? -
ANSWER-2
This nitrogenous base is found in RNA but not DNA. - ANSWER-Uracil
Which molecule contains an aldehyde group? - ANSWER-C
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BESTPDF. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $20.29. You're not tied to anything after your purchase.
