Homeostasis and Cells

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

Name the levels of organization in the human body in order from smallest to largest:

• Tissue, organ, organ system
  
• Organ system, tissue, organs, cells
  
• Cells, tissue, organs, organ system
  
• Cells , organs, tissue, organ system

Tags

NGSS.MS-LS1-3

What is another word that can be used to describe "homeostasis"?

• STABLE
• EQUAL
• COMPLETE
• CORRECT

Tags

NGSS.HS-LS1-3

Check all that apply. Which of the following are examples of an organism maintaining homeostasis?

• Shivering when cold

• Sweating when hot

• Fever - an immune response when sick

• Vomiting - releases toxins and wastes

Why are organelles important? 

• Each have a specific function
• Each give the cell energy
• Each protect the cell
• Each uses the sunlight

Tags

NGSS.MS-LS1-2

What are four things that cells can do to maintain homeostasis?

• make new cells

• exchange materials

• rest

• eliminate wastes

• obtain and use energy

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

NGSS.MS-LS1-6

Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?

• obtain energy

• absorb wastes

• utilize oxygen

• continue growing

Even when it is cold outside, the human body maintains an internal temperature of 37 degrees Celsius. Which term describes the maintenance of a stable internal condition?

• endocytosis

• homeostasis

• mitosis

• photosynthesis

Tags

NGSS.MS-LS1-3

The survival of a cell depends on the cell maintaining homeostasis. What is most likely to happen to a cell if homeostasis is not maintained?

• The cell will immediately divide.

• Cell processes will continue unchanged.

• The cell will eliminate wastes more efficiently.

• Many chemical reactions in the cell will slow down or even stop

Tags

NGSS.HS-LS1-3

Cell membranes are semi-permeable because they allow only certain particles to cross into or out of the cell.

• True

• False

Tags

NGSS.MS-LS1-2