Which organelle contains enzymes that break down damaged cell parts?
A.) centriole
B.) lysosomes
C.) vacuole
D.) mitochondria
Ans: B.) lysosomes
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Endodermis cells of the root secrete a waxy
substance on
a. all of their walls. b. the walls that lead into the xylem. c. the walls adjacent to the phloem only. d. walls of the endodermis that touch each other. e. their chloroplasts
Which does NOT produce variation?
a. crossing over b. random alignment of chromosomes during meiosis c. mitosis d. genetic recombination of alleles e. sexual reproduction
Nucleotide analogs are a class of drugs that are highly effective against many types of viruses. They work by halting the replication of viral genes. They are equally effective at stopping the spread of prion diseases.
Answer the following statement true (T) or false (F)
What is produced in the electron transport system associated with photosystem II?
A) NADPH B) Glucose C) ATP D) O2 E) CO2