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10 Mar 2018

why is it advantageous for a cell to separate processes into different compartments?

Why are organelles only present I’m animal cells?

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Collen Von
Collen VonLv2
11 Mar 2018

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Related questions

Compare organelles in both plant and animal cells. Identify the structures that are unique to each type of cell?
HINT: There are ONLY four (4) unique structures for plant cells and ONLY two (2) unique structures for animal cells.

<Cell structure and organelles>

3. Explain how the internal structure of a cell isolated from the pancreas differs from that of a muscle cell.,

Compare the structures of animal and plant cells. How are they different? how are they the same?

Edema is a medical condition that results from fluid leaking out of blood vessels into surrounding tissues. using your knowledge of animal cell junctions, hypothesize what type of junction may be malfunctioning in individuals suffering from edema and explain why you believe your hypothesis to be correct.

Cholesterol (in the form of LDL) is taken up into cells by receptor-mediated endocytosis. Patients suffering from severe hypercholesterolemia have a defect in cholesterol uptake, which results in high levels of cholesterol in the blood. Researchers studying cells from a patient with this disease found that they are homozygous for mutations in the LDL receptor gene. When they tested the cells from the patient, they found that LDL is not able to bind to the surface of the patient’s cells at all, so LDL is not internalized.

a. In a healthy person, which membrane compartments/organelles does LDL travel through, starting from the extracellular space?

b. In a healthy person, which membrane compartments/organelles does the LDL receptor travel through, starting from the extracellular space?

c. Which cytoskeletal elements serve as “tracks” to move the LDL-containing vesicles to the correct organelles?

d. Which two components are required to work with that cytoskeletal element to move the LDL-containing vesicles within the cell?

e. Explain why the patient’s specific mutation causes such high levels of cholesterol to be in the blood?

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