6.4 peroxisomes

Question 1

a peroxisome

Answer 1

a specialized metabolic compartment that is bounded by a single membrane

Question 2

function

Answer 2

transfer hydrogen from various substrates to oxygen (O2)
-produces hydrogen peroxide as a byproduct (H2O2)

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Question 3

peroxisomes: break down fat

Answer 3

-some peroxisome use O2 to break down fatty acids into smaller molecules that can be transported to the mitochondria (fuel for cellular respiration)

Question 4

PEROXISOMES : liver

Answer 4

detoxify alcohol and stuff by transferring hydrogen from the poisons to oxygen

Question 5

glyoxysomes:

Answer 5

specialized peroxisomes found in fat storing tissues of plant seeds

• contain enzymes that start the conversion of fatty acids to sugars
• seedlings use this sugar until they can make their own

Question 6

peroxisomes don’t bud from the endomembrane system, they grow larger

Answer 6

by incorporating proteins made primarily in the cytosol
lipids made in the ER
and lipids synthesized within the peroxisome itself