REVIEW & REHEARSE: 3 CELLS
!ques1! <i>Check Your Knowledge</i>
Question 3.16
Which of the following statements about the cell theory is correct?
- a) All living organisms are made up of one or more cells.
- b) All cells arise from other, preexisting cells.
- c) All eukaryotic cells contain symbiotic prokaryotes.
- d) All prokaryotic cells contain symbiotic eukaryotes.
- e) Both a) and b) are correct.
Question 3.17
Which of the following statements about prokaryotes is incorrect?
- a) Prokaryotes appeared on earth before eukaryotes.
- b) Prokaryotes have circular pieces of DNA within their nuclei.
- c) Prokaryotes contain cytoplasm.
- d) Prokaryotes contain ribosomes.
- e) Some prokaryotes can conduct photosynthesis.
Question 3.18
Which of the following facts supports the claim that mitochondria developed from bacteria that, long ago, were incorporated into eukaryotic cells by the process of phagocytosis?
- a) Mitochondria have flagella for motion.
- b) Mitochondria have proteins for the synthesis of ATP.
- c) Mitochondria are the “powerhouses” of the cell.
- d) Mitochondria are small and easily transported across cell membranes.
- e) Mitochondria have their own DNA.
