Homeostasis Review

Click on the true facts about skin from below.

• One of the functions of the skin is waterproofing. Cells are packed tightly to protect your body from losing water.

• Another function of the skin is that it contains receptors. These parts of the skin perceive sensations such as pressure, vibrations, texture, and temperature.

• The skin functions as a layer of blood vessels that filter toxins and spread them throughout your body

• The skin also contains melanin which is a pigmentation that gives us our skin color and helps filter out dangerous UV rays form the sun.

Know these organ systems for the quiz

• Yes, I will know each and every one of them

• This has nothing to do with my body, I do not have organs, organs are gross

Which of the following best illustrates homeostasis?

• Most adult humans are between 5 and 6 feet tall
• the lungs and intestines have large surface area
• all cells of the body are about the same size
• when blood salt concentration goes up, kidneys expel more salt

Tags

NGSS.HS-LS1-3

Sweating to regulate body temperature is an example of

• negative feedback
• positive feedback
• a homeostatic imbalance
• aging

Tags

NGSS.HS-LS1-3

The function that allows the body to eliminate salt, waste, and excess water and heat is :

• absorption
• excretion
• production

Tags

NGSS.HS-LS1-3

Homeostasis in the human body is often maintained by a: 

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

Tags

NGSS.HS-LS1-3

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

• compensating
• homeostasis
• balancing
• routine

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NGSS.HS-LS1-3

What type of feedback loop is shown?

• negative
• neutral 
• positive

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NGSS.HS-LS1-3

Where is there a high concentration of water?

• in the flower
• cannot be determined by picture.
• in the vase
• in the leaves

Tags

NGSS.HS-ESS2-5

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.
  
• The movement of materials through (or across) the cell membrane
  
• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
• The movement of molecules from an area of high concentration to a area of low concentration 
  

Tags

NGSS.MS-LS1-2