1.5 MHS IB Bio

Front

Louis Pasteur's experiment was set up to either accept or reject the hypothesis of

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spontaneous generation.

Front

Molecules hypothesized to NOT be abundant in pre-biotic earth conditions include: H₂, H₂O, O₂, NH₃

Back

O₂

Front

The Miller Urey experiment used __________ to simulate electrical storms.

Back

electrodes

Front

At the end of a week of running the Miller-Urey experiment, _______________ were found in the experimental chamber.

Back

amino acids

Front

It is hypothesized that monomers were able to form into polymers

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at deep sea thermal vents.

Front

The benefit of a cell membrane includes

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formation of an internal environment in which optimal conditions can be maintained.

Front

The theory that mitochondria and chloroplasts originated as symbioses between separate single-celled organisms is known as

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endosymbiotic theory.

Front

The formation of membrane-bound organelles such as a the nucleus and rER is likely due to

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infoldings in the external membrane that then pinched off.

Front

The prokaryotic cell which evolved into the first mitochondria is hypothesized to have been an

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aerobic bacterium.

Front

Which is NOT a piece of evidence supporting the endosymbiotic theory? Options: Mitochondria and chloroplasts have their own DNA. Mitochondria and chloroplasts have ribosomes similar in size to prokaryotic ribosomes. The inner membranes of mitochondria and chloroplasts have proteins similar to prokaryotes. Mitochondria and chloroplasts are roughly the same size as the nucleus.

Back

Mitochondria and chloroplasts are roughly the same size as the nucleus.