Question

question 7 0.5 pts
peroxisomes got their name because hydrogen peroxide is:
used in their detoxification reactions
produced during their oxidation reactions
a cofactor for the organelles enzymes
used with ribosomes to produce proteins
incorporated into their membranes

question 8 0.5 pts
in plant cells, the function of the lysosomes is carried out by __________.
vacuoles
ribosomes
nuclei
peroxisomes
chloroplasts

question 9 0.5 pts
which of the following is both in eukaryotic and prokaryotic cells?
vacuoles
ribosomes
endoplasmic reticulum
nucleus
mitochondrion

Explanation:

• Question 7: Peroxisomes contain enzymes that catalyze oxidation reactions which produce hydrogen peroxide as a by - product, giving them their name.
• Question 8: In plant cells, vacuoles perform functions similar to lysosomes in animal cells, such as breaking down waste materials.
• Question 9: Ribosomes are present in both eukaryotic and prokaryotic cells as they are essential for protein synthesis. Prokaryotes have 70S ribosomes and eukaryotes have 80S ribosomes (with some 70S ribosomes in mitochondria and chloroplasts).

Answer:

• Question 7: produced during their oxidation reactions
• Question 8: vacuoles
• Question 9: ribosomes