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Ch.3.1 Early Life -3.2 Prokaryotes

Authored by Vivika Arocho

Biology

University

Used 4+ times

Ch.3.1 Early Life -3.2 Prokaryotes
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  • Photosynthetic eukaryotes contain both mitochondria and chloroplasts. Which sequence of events most likely describes the evolution of this group?

Ancestral prokaryote engulfs and oxygen-using energy-harvesting prokaryote and then engulfs a photosynthetic Prokaryote

  • Ancestral prokaryote engulfs a photosynthetic prokaryote and then engulfs an oxygen-using energy-harvesting prokaryote

  • Ancestral prokaryote engulfs an energy-harvesting prokaryote that does not rely on oxygen and then engulfs a photosynthetic eukaryote

  • Ancestral prokaryote engulfs a photosynthetic prokaryote and then engulfs an energy-harvesting prokaryote that does not rely on oxygen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following organelles originated from endosymbiosis?

  • Nuclear membrane and Golgi apparatus

  • ER and chloroplasts

  • Chloroplasts and mitochondria

  • Mitochondria and Golgi apparatus

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following are four hypothesized stages of the origin of life. Place them in the correct order.

1. Origin of self-replicating molecules

2. Joining of small organic molecules into long-chain

molecules

3. Abiotic synthesis of small organic molecules

4. Packaging of molecules into fatty membranous

Proto-cells

1,2, 3,4

  • 3,2,4,1

  • 4,2, 3,1

  • 3, 1, 2,4

  • 2,1, 4,3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do some scientists believe that RNA, rather than DNA, was the first genetic material?

RNA has both information storage and catalytic properties

RNA contains uracil in place of thymine

  • RNA could evolve into DNA

  • RNA can replicate more accurately than DNA

  • All the photo-cells on early Earth contained RNA

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A species of bird finds its way to the Galápagos Islands, where there are several ecological niches. The species evolves into many new species to fill all the unfilled niches. This is an example of:

  • resource partitioning

  • adaptive radiation

  • endosymbiosis

  • gradualism

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Prokaryotes lack some parts found in eukaryotic cells, including which item?

a nuclear membrane

DNA

  • on or more chromosomes

  • a plasma membrane

  • all of the above are missing in prokaryotic cells

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gets its energy from sunlight and its carbon from ingesting other organisms?

  • photoautotroph

  • chemoautotroph

  • photoheterotroph

  • chemoheterotroph

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