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CMB1004 Cell biology Lecture 4 Exam Questions With 100% Verified Answers

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CMB1004 Cell biology Lecture 4 Exam Questions With 100% Verified Answers Cytoskeleton - answerA network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement Wha type of proteins are associated with the cytoskeleton and help with movement? - answerMotor...

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  • September 29, 2024
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  • 2024/2025
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CMB1004 Cell biology Lecture 4 Exam
Questions With 100% Verified Answers



Cytoskeleton - answer✔A network of fibers that holds the cell together, helps the cell to keep its
shape, and aids in movement
Wha type of proteins are associated with the cytoskeleton and help with movement? -
answer✔Motor proteins

What are the 3 main components of the cytoskeleton? - answer✔Intermediate filaments
Microtubules
Actin filaments

Where are intermediate filaments found? - answer✔cytoplasm and nucleus

Purpose of intermediate filaments - answer✔Provide mechanical strength

What are the IFs found in the nucleus called? - answer✔Nuclear lamins

Nuclear lamins - answer✔Intermediate filaments that make up the nuclear lamina layer—a
lattice-like layer inside the nuclear envelope that acts as an anchorage site for chromosomes and
nuclear pores

What are the 3 types of nuclear lamins? - answer✔LMNA, LMNB, LMNC

What happens to nuclear lamins during cell division/mitosis? - answer✔They break down

What are the 3 types of cytoplasmic IFs? - answer✔Keratins
Neurofilaments
Vimentin/Vimentin-related

Diameter of intermediate filaments - answer✔10 nm

How do the IFs provide strength? - answer✔Distribute tensile force across the cell

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