Biology SB.4 Quiz

The theory of endosymbiosis suggests that chloroplasts and mitochondria were once free-living prokaryotes, that were engulfed by larger prokaryotic cells. Eventually, this relationship lead to the development of eukaryotic cells with cellular organelles. These organelles included mitochondria, and in some cases, chloroplasts.

Which of these is not supported by the endosymbiosis theory concerning organelles?

• contain DNA

• contain ribosomes

• are capable of living independently

• are surrounded by a double membrane

Which of the following are properties of ALL life forms?

1. heritable programs in the form of DNA

2. photosynthesis

3. growth and development

• 2

• 3

• Only 1 and 3 are correct

• 1, 2, and 3 are correct

A puppy is born weighing 5 lbs and grows to be a 75 lb golden retriever. This is an example of which characteristic of life?

• Growth

• Reproduction

• Homeostasis

• Response to stimuli

You drink a glass of lemonade, but your body's pH does not change. This is an example of how organisms:

• maintain homeostasis.

• maintain organization

• adapt to their environment

• are immune to the environment

What is the main difference between prokaryotes and eukaryotes?

• Prokaryotes cannot undergo cell division

• Prokaryotes have no internal membranes

• Prokaryotes have no DNA

• Prokaryotes have no cytosol