Homeostasis

What type of feedback system is described above?

• positive

• negative

• neutral

• leofied

Tags

NGSS.HS-LS1-3

What type of feedback system does the model represent?

• positive

• negative

• neutral

• glyogen

Tags

NGSS.HS-LS1-3

What is the stimulus in the model above?

• high blood glucose is detected by insulin secreting cells of the pancreas

• rising blood glucose level

• pancreas secretes the hormone insulin

• body cells take up more glucose

In a positive feedback loop, each action creates a consequence that _____________________ the other action.

• decreases

• has no effect on

• amplifies

In a negative feedback loop, each action creates a consequence that _____________________ the other action.

• decreases

• has no effect on

• amplifies

Identify the receptor in the diagram

• high blood glucose level is detected by insulin secreting cells of the pancreas

• rising blood glucose level

• pancreas secretes the hormone insulin

• body cells take up more glucose

Which of the following describes homeostasis?

• keeps variables exactly at the set point

• organism's ability to maintain steady(stable) internal conditions

• acts to keep values outside of a desired range

• operates through positive feedback

Tags

NGSS.HS-LS1-3

Identify the corrective mechanism in the diagram

• High blood glucose level is detected by insulin secreting cells of the pancreas

• Pancreas secretes the hormone insulin

• rising blood glucose level

• return to homeostatic blood glucose level

Identify the set point in the diagram

• High blood glucose level is detected by insulin secretng cells in the pancreas

• pancreas secretes the hormone insulin

• body cells take up more blood glucose

• return to homeostatic blood glucose level

Create a CER response to the following prompt using at least 3 pieces of evidence and relating the evidence to the steps of homeostasis (stimulus, receptor, corrective mechanism, and set point).

People get a fever when their brain sets the body temperature higher than normal. This may happen as a reaction to germs such as viruses or bacteria, but it can also happen as a reaction to substances that are made by the body, such as prostaglandins. Our body produces prostaglandins to fight off germs.

A body temperature of 38°C (100.4°F) or more is considered to be a fever. Temperatures above 39.5°C (103.1°F) are considered to be a high fever, and very high fever is defined as any temperature above 41°C (105.8°F). A temperature between 37.5°C and 38°C is an elevated body temperature.

Tags

NGSS.MS-LS1-3