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Exam 4: Cell Structure

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Question 31

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Chromosomes can be condensed into compact structures,visible with the light microscope,but usually only:

A) after the cell is dead.
B) during cell division.
C) while the DNA is being copied into RNA.
D) while the proteins are being assembled.
E) while the nuclear pores are open.

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Question 32

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Cilia and flagella of eukaryotic cells are composed of:

A) microtubules in a 9 + 2 arrangement.
B) actin filaments in a 9 + 2 arrangement.
C) protein fibers in a helical arrangement.
D) nine triplets of microtubules in a circle.

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Question 33

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What is the difference between mitochondria and chloroplasts?

The organelle involved in the oxygen-requiring process by which the energy harvested from macromolecules is used to generate ATP is the:

A protein that is destined to reach the plasma membrane is making its way through the Golgi.At that moment,a drug was added to cells,blocking trafficking at the trans face of the Golgi.As a result,what would happen to the protein?

Prokaryotic cell movement is attributed to:

Your research project involves characterizing the expression pattern of a nuclear pore protein.After using immunohistochemistry to fluorescently label the protein,you decide that you would like to capture the data as a 3-D image.Which microscope should you use?

A dish of cells is treated with centrinone,a centriole inhibitor.These cells would no longer be able to ________.

Organelles that breakdown hydrogen peroxide into water and oxygen are:

The distinctive feature of chloroplasts is that they contain a green pigment called:

A cuboidal shaped cell with six sides is 1mm x 1mm x 1mm.What is the volume and the surface area of the cell?

Plant cells often have a large membrane-bound sac that is used for storing water and other substances called a:

Alcohol consumption adversely affects the synthesis of molecules involved in protein degradation,which can eventually lead to liver damage.Given this information,which organelle in liver cells is most directly affected by alcohol consumption?

During which cellular process do all three forms of RNA associate?

The cytoplasmic space in eukaryotic cells is occupied by many diverse membrane-bound structures with specific cellular functions called:

Glycogen Storage Disease Type II (GSD II) ,also known as Pompe disease,is a metabolic disorder that leads to the accumulation of glycogen in muscles and neurons throughout the body.It is caused by a defect in an enzyme that is normally housed with other enzymes that are involved in breaking down large macromolecules.What organelle is most likely affected by this disease?

Schleiden and Schwann stated the "cell theory," which in its modern form says:

A circular molecule of DNA devoid of any histone proteins describes the chromosome of a (an) :

Based on the function of mitochondria,what substance is able to pass through the outer membrane of the mitochondria easily?

Small cells function more effectively,because as cells become larger their surface area to volume ratio: