Homeostasis, Cell Communication, and Feedback

The maintenance of an organism’s internal environment is called:

• compensating
• homeostasis
• balancing
• routine

Tags

NGSS.HS-LS1-3

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

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NGSS.HS-LS1-3

Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

Tags

NGSS.HS-LS1-3

Body temperature rises during physical exercise. But the temperature is reduced back to normal through sweating. Which of the following biochemical processes is explained by the above statement?

• Metabolism

• Adaptation

• Excretion

• Homeostasis

Tags

NGSS.HS-LS1-3

After a hormone enters the bloodstream, it is transported throughout the body, but the hormone affects only certain cells. Only certain cells are affected because the membranes of these cells have what specific structures?

•  receptors

• tissues

• antibodies

• carbohydrates

Sweating is a process that helps cool the body during strenuous exercise. This is an example of

• recycling of gases

• cellular respiration

• gene malfunction

• a feedback mechanism to maintain homeostasis

Tags

NGSS.HS-LS1-3

Which substances are found on cell surfaces and respond to nerve and hormone signals?

• starches and simple sugars

• subunits of DNA

• vitamins and minerals

•  receptor molecules

Letter B indicates :

• ribosomes

• receptor molecules

• tissues

• inorganic substances

Tags

NGSS.HS-LS1-3

In a changing external environment, an organism must be able to maintain relatively constant internal conditions. This maintenance of a stable internal environment is known as

• transport

• homeostasis

• metabolism

• nutrition

Tags

NGSS.HS-LS1-3

The maintenance of homeostasis in the body is most directly related to

• cellular communication

• cycling of energy

• aging of the organism

• recombination of chromosomes

Tags

NGSS.HS-LS1-3