Ch. 12: Mitochondria, Chloroplasts & Peroxisomes Online Quiz (MC) Flashcards
Zellweger syndrome is caused by a defect in ___ import into ___.
protein import into peroxisomes
Assuming that human mitochondria contain about 1,500 different proteins, approximately what percentage of the mitochondrial proteome is encoded by mitochondrial DNA?
___%
1%
Peroxisomes ___ ___ generate the enzyme catalase, which breaks down hydrogen peroxide.
DO NOT
Vesicular transport is ___ involved in protein transport into mitochondria.
NOT
The inner membrane in mitochondria is equivalent to the ___ ___ in chloroplasts in terms of generating metabolic energy.
thylakoid membrane
If a drug blocked the activity of the mitochondrial inner membrane proteins Tim9 and Tim10, which of the following would most likely not be found in the outer mitochondrial membrane?
B-barrel proteins
A ___ is a precursor to all other plastids.
proplastid
The carotenoids, which give many plants their yellow, orange, and red colors, are located in ___.
chromoplasts
A deficiency in cardiolipin would lead to ___ proton flow across the ___ mitochondrial membrane.
increased, inner
___ triggers lipid-containing etioplasts to undergo complete development into chloroplasts.
light
Chloroplast genomes contain approximately how many genes?
150
Where do phospholipids in mitochondrial membranes such as phosphatidylcholine and phosphatidylethanolamine originate?
From the ___.
ER
___ different translocon systems are used for protein import from the chloroplast stroma into the thylakoid lumen or membrane.
3
