Chapter 23: Q.6 (page 606)
Mitochondria most likely evolved by _____________.
a. a photosynthetic cyanobacterium
b. cytoskeletal elements
c. endosymbiosis
d. membrane proliferation
Short Answer
The correct answer is option c, that is, endosymbiosis.
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Chapter 23: Q.6 (page 606)
Mitochondria most likely evolved by _____________.
a. a photosynthetic cyanobacterium
b. cytoskeletal elements
c. endosymbiosis
d. membrane proliferation
The correct answer is option c, that is, endosymbiosis.
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What is the function of raphe in diatoms?
a. locomotion
b. defense
c. capturing food
d. photosynthesis
Which parasitic protist evades the host immune system by altering its surface proteins with each generation?
a.Paramecium caudatum
b. Trypanosoma brucei
c. Plasmodium falcipuram
d. Phytophthora infestans
The amoeba E. histolytica is a pathogen that forms liver abscesses in infected individuals. Its metabolic classification is most likely ______.
a. Anaerobic heterotroph
b. Mixotroph
c. Aerobic phototroph
d. Phagocytic autotroph
Which of the following statements about Paramecium sexual reproduction is false?
a. The macronuclei are derived from micronuclei.
b. Both mitosis and meiosis occur during sexual reproduction.
c. The conjugate pair swaps macronuclei.
d. Each parent produces four daughter cells.
Describe two ways in which paramecium differs from the projected traits of the last eukaryotic common ancestor.
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