Which of the following statements best describes the difference between mitosomes and mitochondria?
A. Mitosomes are not involved in ATP production.
B. Mitosomes are much larger than mitochondria.
C. Mitosomes contain hydrolytic enzymes that help the protozoan digest food particles.
D. Mitosomes have one membrane whereas mitochondria have a double membrane.
Answer: A
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A. Amoebozoa B. Archaeplastida C. Stramenopila D. Opisthokonta E. Excavata
Spherical resting cells produced by Sporocytophaga are called ________.
A. microcysts B. heterocysts C. oocysts D. nitrocysts
The respiratory surfaces of mammalian lungs are called ____
a. alveoli b. bronchi c. tracheae d. bronchioles e. air sacs
Potato spindle-tuber disease, which causes potatoes to become gnarled and cracked, is caused by an infectious agent consisting of a small circular RNA molecule that totally lacks a protein coat. These infectious agents are thought to exert their effects by interfering with the cell's normal path of gene expression. Such an infectious agent is known as a(n) __________.
A) eviscerion B) viroid C) provirous D) bacteriophage E) virunette