BSC1005 MIDTERM MDC EXAM 2024-
2025 WITH ACTUAL CORRECT
QUESTIONS AN VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS
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The concept of a membrane as a fluid mosaic reflects the ability of ______.
Phospholipids AND proteins to drift about in the plane of the membrane
A hormone that will be secreted from the cell is manufactured by ribosomes ________.
attached to endoplasmic reticulum.
What structures move proteins from the ER to the Golgi apparatus?
transport vesicles.
Which of the following is a feature of prokaryotic cells but not eukaryotic cells?
Pili
Information is transferred from the nucleus to ribosomes via ____.
mRNA
Microtubules are associated with ______.
A) cilia
B) flagella
C) cell shape in animal cells
D) all of the above
ALL OF THE ABOVE.
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, What type of microscope would be best for studying the detailed structure of the surface of a plasma
membrane?
Scanning electron microscope.
Active transport ______.
A) Uses ATP as an energy source
B) Can move solutes against their concentration gradient
C) Requires the cell to expend energy
D) Can involve the transport of ions
E) All of the above
E) All of the above
In a hypotonic solution, a plant cell will _____.
become turgid.
An object at rest has no ______ energy, but it may have _____ energy resulting from its location or
structure.
kinetic....potential.
Energy is transferred from ATP to other molecules by transferring a(n) ______.
Phosphate group.
Which component of the following reaction is the SUBSTRATE?
sucrose + sucrase + water --> sucrase + glucose + fructose
Sucrose.
Relaying a message from a receptor protein to a molecule that performs a specific function within a cell
is called _____.
Signal transduction.
Osmosis can be defined as ______.
The diffusion of water.
Which component of the following reaction is the ENZYME?
sucrose + sucrase + water sucrase + glucose + fructose
Sucrase.
Substances that plug up an enzymes active sites are ___.
Enzyme inhibitors
Facilitated diffusion across a biological membrane requires _____ and moves a substance _____ its
concentration gradient.
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