Biogenesis

Which of the following terms refers to life coming from other living things?

• Abiogenesis

• Biogenesis

• Spontaneous generation

• Endosymbiosis

Which scientist designed a special flask that allowed air in but kept microbes out and once and for all disproved spontaneous generation?

• Redi

• Needham

• Spallanzani

• Pasteur

Which of the following is a key difference between Needham's and Spallanzani's experiments testing the idea of spontaneous generation?

• Needham heated his broth while Spallanzani did not.

• Spallanzani heated his broth while Needham did not.

• Needham sealed his flasks tightly while Spallanzani did not.

• Spallanzani sealed his flasks tightly while Needham did not.

Which scientist disproved spontaneous generation of large organisms by showing maggots came from flies not from rotting meat?

• Redi

• Needham

• Spallanzani

• Pasteur

The idea that life must come from life is called

• biogenesis

• abiogenesis

• spontaneous generation

• spontaneous combustion

A group of scientists have set up an experiment simulating the conditions of early Earth. This experiment produced a cell with DNA that used RNA to synthesize proteins from amino acids just like modern cells do. What conclusion could they draw from this experiment?

• Under the conditions of the experiment, it is possible to create cells similar to modern cells.

• Modern cells developed from inorganic compounds in the conditions that existed on early Earth.

• The conditions of their experiment exactly replicated the conditions found on early Earth.

• The way modern cells function is the only way a cell could be constructed and survive.

Tags

NGSS.HS-LS4-2

By discharging electric sparks into a laboratory chamber atmosphere that consisted of water vapor, hydrogen gas, methane, and ammonia, Stanley Miller obtained data that showed that a number of organic molecules, including many amino acids, could be synthesized. Miller was attempting to model early Earth conditions as understood in the 1950s. The results of Miller’s experiments best support which of the following hypotheses?

• The molecules essential to life today did not exist at the time Earth was first formed.

• The molecules essential to life today could not have been carried to the primordial Earth by a comet or meteorite.

• The molecules essential to life today could have formed under early Earth conditions.

• The molecules essential to life today were initially self-replicating proteins that were synthesized approximately four billion years ago.

Tags

NGSS.HS-LS1-6

What was the product of the Miller-Urey Experiment?

• Simple amino acids

• Simple nucleotides

• Simple lipids

• Simple monosaccarides

Tags

NGSS.HS-LS1-6

Who was the first scientist to try to disprove the idea of spontaneous generation?

• Redi

• Needham

• Spallanzani

• Pasteur

What did Redi use in his experiment?

• Broth and flasks

• Meat and jars

• swan-neck flasks