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BIOL-L 112 FINAL EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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BIOL-L 112 FINAL EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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BIOL-L 112 FINAL EXAM 2024/2025 WITH100% ACCURATE SOLUTIONS
Which of the following is an antigen presenting cell?
a. T cell
b. Plasma cell
c. macrophage
d. dendritic cell
e. dendritic cell and macrophage - Precise Answer ✔✔e. dendritic and
macrophage
Antigen presenting cell - Precise Answer ✔✔a cell that displays antigen
complexed with a major histocompatibility complexes
Which of these is the site for protein and lipid synthesis?
a. nucleus
b. cytoskeleton
c. mitochondria
d. endoplasmic reticulum
e. all of these - Precise Answer ✔✔d. endoplasmic reticulum
Organelle composed of a system of tubes, and sacs that transport
molecules inside the cytoplasm are:
,a. Golgi body
b. ribosome
c. mitochondrion
d. lysosome
e. endoplasmic reticulum - Precise Answer ✔✔e. endoplasmic reticulum
They have been dubbed as "conveyor belts"; they move vesicles,
organelles, and chromosomes
a. cilia
b. flagella
c. microtubules
d. microfilaments
e. Golgi apparatus - Precise Answer ✔✔c. microtubules
Peoxisomes would most likely be involved in the metabolism of:
a. glucose
b. alcohol
c. white blood cells
d. pesticides
e. nucleoli - Precise Answer ✔✔b. alcohol
Which statement is NOT true?
a. Membranes are often perforated by proteins that extend through both
sides of the membrane
, b. Some membranes have proteins with channels or proes that allow for
the passage of hydrophilic substances
c. Hydrophilic substances have an easier time passing through
membranes than hydrophobic substances do
d. The current concept of a membrane can be best summarized by the
fluid mosaic model
e. The lipid bilayer serves as a hydrophobic barrier between two fluid
regions - Precise Answer ✔✔c. Hydrophilic substances have an easier
time passing through membranes than hydrophobic
In order to ensure the precision of the excision of introns, the junction
between introns and exons are bound by:
a. snRNPs
b. ribozymes
c. single stranded RNA binding proteins
d. RNA polymerase
e. all of these - Precise Answer ✔✔a. snRNPs
snRNPs - Precise Answer ✔✔combine with unmodified cells
Introns - Precise Answer ✔✔do not directly code for proteins
Ribozymes - Precise Answer ✔✔pre-mRNA to form a spliceosome
Exons - Precise Answer ✔✔part of DNA that is converted to mRNA
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