A Particular Cell Contains the Following Molecules and Structures: Enzymes

question 37

Multiple Choice

A particular cell contains the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. Based on this composition, it could be a cell from which of the following organisms?

• A) a bacterium, but not a eukaryote
• B) an animal, but not a plant
• C) nearly any eukaryotic organism
• D) a plant, but not an animal

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Definitions:

Circadian Rhythm

The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours, affecting physical, mental, and behavioral changes.

Biorhythm

A hypothetical cycle of physical, emotional, or intellectual fluctuations believed to affect human behavior.

Gonads

The reproductive organs in animals and humans that produce gametes (sperm in males, eggs in females); testes in males and ovaries in females.

Pituitary

A small, crucial gland located at the base of the brain responsible for regulating important functions by releasing hormones into the bloodstream.