Question

Biology Quiz Help!?

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in areas illuminated by red and blue light.

An outcome of this experiment was to help determine

A) the relationship between wavelengths of light and the amount of heat released.

B) the relationship between the concentration of carbon dioxide and the rate of photosynthesis.

C) the relationship between wavelengths of light and the oxygen released during photosynthesis.

D) the relationship between heterotrophic and autotrophic organisms.

E) the relationship between wavelengths of light and the rate of aerobic respiration.

Answers

C

One of the best experiments performed in Biology EVER.

The parts of the filament exposed to red or blue light carried out photosynthesis and gave off oxygen, which attracted the aerobic bacteria.

1881, no oxygen electrodes, no fancy scientific kit apart from a microscope and he worked out the most efficient wavelengths for photosynthesis. GENIUS.

John H

#1

wooow, i'm taking biology this year and this is very wordy, kinda took me awhile to understand.

You should go with.

C

#2