Practice Questions

TLS Online TPP Program

#Question id: 11542

Different body cells can respond differently to the same polypeptide hormones because ________.

#Unit 7. System Physiology – Animal

different target cells have different sets of genes
a target cell's response is determined by the components of its signal transduction pathways
the circulatory system regulates responses to hormones by routing the hormones to specific targets
the hormone is chemically altered in different ways as it travels through the circulatory system

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TLS Online TPP Program

#Question id: 11088

#Unit 7. System Physiology – Animal

At a fraternity party a 17-year-old male places a paper bag over his mouth and breathes in and out of the bag. As he continues to breathe into this bag, his rate of breathing continues to increase. Which of the following is responsible for the increased ventilation?

TLS Online TPP Program

#Question id: 10368

#Unit 6. System Physiology – Plant

Free-living bacteria that are capable of fixing nitrogen are aerobic, facultative, or anaerobic. Some of the Aerobic nitrogen-fixing bacteria such as

TLS Online TPP Program

#Question id: 10317

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following are receptors for cholera toxin?

TLS Online TPP Program

#Question id: 807

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forces can stabilize a normal DNA double-helix?