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Explain in detail how proteins are imported into the mitochondria in each of the following cases:

F. From the cytosol to the mitochondria outer membrane (for B-barrel proteins)

G. From the cytosol to the mitochondria inter membrane space

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Jean Keeling
Jean KeelingLv2
28 Sep 2019
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Related questions

please explain

1. Nuclear pores are highly selective with great specificity for molecules passing through

a. true

b. false

2. The major chemical modification on proteins for signal transmission begins with this letter:

a. U

b. A

c. P

d. M

3. An organelle involved with the enzymzatic breakdown of biomolecules:

a. Nucleus

b. Mitochondria

c. Endoplasmic reticulum

d. Plasma membrane

e. Cytosol

f. Golgi apparatus

g. Lysosome

h. Peroxisome

i. The cytoskeleton

(a) Mitochondria (b) Endoplasmic reticulum (c) Nucleus (d) Lysosome (e) Endosome (f) Peroxisome (g) Golgi apparatus

_____ quality control of mRNA

_____ location of oxidative phosphorylation

_____ responsible for detoxifying organic molecules (liver cells)

_____ houses and protects genetic material

_____ responsible for modification and sorting of proteins and lipids

_____ location of ATP synthesis

_____ responsible for sorting endocytosed materials

_____ site of degradation and digestion

_____ responsible for oxidizing toxic molecules

_____ location of lipid synthesis

_____ location of hormone synthesis (adrenal cells)

B. Which organelle(s) from the above list communicate(s) with other organelle(s) through the use of vesicular transport? ________________

C. Which organelle(s) from the above list receive proteins made in the cytosol?___________________

D. Through which organelle(s) must proteins pass to reach the organelle(s) which do not receive proteins made exclusively in the cytosol?______________

E. Entrance into which organelle(s) requires that proteins unfold and snake through the membrane? _________________

F. How do organelles maintain their position in the cytosol? Be specific.

G. Give 2 advantages that eukaryotic cells gain by having organelles.

True or False: Native, fully folded proteins that are synthesized in the cytosol are imported into peroxisomes without unfolding.

Fill in the blank

According to Molecular Biology of the Cell, the ["retrieval", "endocytic", "secretory"] pathway leads outward from the ER toward the Golgi apparatus and cell surface, with a side route leading to lysosomes, while the ["retrieval", "endocytic", "secretory"] pathway leads inward from the plasma membrane. In each case, ["endocytic", "retrieval", "secretory" ] pathways balance the flow of membrane between compartments in the opposite direction, bringing membrane and selected proteins back to the compartment of origin.

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