A reddish chemical, lipofuscin, is found in greater quantities in cells of older people than in those from younger people. This chemical should be broken down in the cells. Which specific type of organelle is not working as well in the seniors?
A. lysosome
B. mitochondrion
C. nucleus
D. rough endoplasmic reticulum
Answer:A
A reddish chemical, lipofuscin, is found in greater quantities in cells of older people than in those from younger people. This chemical should be broken down in the cells. Which specific type of organelle is not working as well in the seniors?
A. lysosome B. mitochondrion C. nucleus D. rough endoplasmic reticulum