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Biology 141 Final Exam With Questions And Correct Answers Latest Version
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Biology 141 Final Exam With Questions AndCorrect Answers Latest Version
In the process of science, what is the role of the Hypothesis?
a. to provide a testable scientific explanation for an observation
b. to provide a testable scientific explanation for observation.
c. To make a generalization from a large number of observations (inductive reasoning).
d. To expose a normal human tendencies such as bias, stubbornness, and need for attention.
To provide a testable scientific explanation for an observation.
_________________ reactions form bonds between monomers to form a polymer, and
________________ reactions break bonds in a polymer to form individual monomers.
a. Hydrolysis; Dehydration
b. Lipolysis; Condensation
c. Dehydration;Hydrolysis
d. Polymerization; Monomerization
Dehydration;Hydrolysis
Which of of the following shows the correct classification levels, from more inclusive (has more
organisms) to less inclusive?
a. Oder-Family-Phylum
b. Kingdom-Domain-Phylum
c. Family-Genus-Class
d. Phylum-Family-Oder
e. Class-Order-Family
Class-Order-Family
Which of the following scenarios is the best example of Homeostasis?
a. Water temperature changes rapidly when exposed to direct sunlight
b. Offspring have the same genetic material of the two parents, half from each parent.
c. During heavy exercise your blood pH may decrease slightly, from 7.4 to 7.3
d. Body temperature is controlled precisely at 98.6°F at all times.
2024
,During heavy exercise your blood pH may decrease slightly from 7.4 to 7.3
A saturated fat molecule:
a. will typically have several hydroxyl functional groups
b. Contains only single covalent bonds between its carbon atoms
c. Has a greater number of double bonds then a unsaturated fat module
d. Has an outer electron shell with 8 electrons
contains only single covalent bonds between its carbon atoms
Compared with ^31P, the radioactive isotope ^32P has:
a. a different atomic number
b. One more proton
c. One more electron
d. One more neutron
One more neutron
Organisms capable of inhabiting Earth's most extreme environments, such as volcanic springs and acid
pools, belong to which group?
a. Domain Animalia
b. Domain Archaea
c. Domain bacteria
d. Domain Extremophila
e. Domain fungi
Domain Archaea
On food packages, to what does the term fiber usually refer?
a. Cellulose
b. Polypeptides
c. Starch
d. Amylopectin
cellulose
The quaternary structure of a protein is determined by:
a. The formation of α-sheets and ß-polarities
b. Hydrogen bonding between adjacent nucleotides
2024
,c. Interactions of purine and pyrimidine R groups
d. Interactions between multiple polypeptides
interactions between multiple polypeptides
Which statement is TRUE regarding Phospholipids?
a. The nonpolar heads will interact with water, while the polar tails will come together in the interior of
a membrane lipid bilayer
b. They form triglycerides in adipose tissue
c. They consist of a diglyceride, phosphate, and a polar head group.
d. Saturated fatty acids make a membrane more fluid, due to the water saturation
They consist of a diglyceride, phosphate, and a polar head group.
The exoskeleton of insects is composed of:
a. chitin
b. cellulose
c. quaternary proteins
d. sulfhydryl functional groups
e. pyrimidines
chitin
Adenine and Guanine are:
a. Pyrimidines, single-ring structures
b. Purines, double-ring structures
c. Polar head groups
d. Saturated fatty acids
Purines, double-ring structures
Amylose and Amylopectin are:
a. Wrapped around each other to form a double helix
b. Joined together with peptide bonds
c. Found in adipose tissue
d. Polysaccharides in plants
polysaccharides in plants
2024
, A disease causes a reduction of the production of Glycerol in your liver, you liver does not make
Glycerol. Your liver therefore would most likely also have a low concentration of:
a. ß-glucose
b. Glycogen
c. Fats
d. Nucleic acids
e. Purines
Fats
Another disease decreases your cells' ability to make Ribose. Which of the following would probably be
reduced in these cells?
a. Nucleotides
b. Polypeptides
c. Triglycerides
d. Glucose Monosaccharides
Nucleotides
Tropical sea cucumbers excrete during that has a high concentration of molecular phosphate, while the
surrounding seawater is devoid of phosphate. Corals need phosphate in order to grow. "Possibly, corals
are able to take up the phosphate that is excreted in sea cucumber urine." the [quoted] information is
best described as a(n):
a. fact
b. theory
c. law
d. hypothesis
e. opinion
hypothesis
Who was the first scientist to propose that atoms are made from protons, neutrons, and electrons?
a. Bohr
b. Browne
c. Thompson
d. Rutherford
Rutherford
2024
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