Homeostasis and Basic Chem A&P 1

What are the 5 basic human survival needs?

• Oxygen, water,

  nutrients, normal temp., appropriate atmosphere

• food, water, clothes, pets, oxygen, shelter

• oxygen, carbon, nitrogen, calcium, hydrogen

• glucose, water, oxygen, normal temp., shelter

Def of Homeostasis

• anything that disturbs the balance

• how the body functions

• maintaining the body's internal constant state

• output that shuts off original effect

Tags

NGSS.HS-LS1-3

Def of Homeostatic Imbalance

• maintaining the body's internal constant state

• anything that disturbs the natural balance

• controls effect or response

• the current conditions

Tags

NGSS.HS-LS1-3

What are the 3 Homeostatic Mechanisms?

• negative feedback, positive feedback, reactants

• Oxygen, carbon, nitrogen

• Ionic bonds, covalent bonds, polar covalent bonds

• receptor, control center, effector

Tags

NGSS.HS-LS1-3

What is Negative Feedback?

• output shuts off original effect, reduces the intensity

• enhances original stimulus to accelerate response

• molecule that has 2 or more atoms bonded together

• involve the transfer of valence electrons resulting in ions

Tags

NGSS.HS-LS1-3

what is positive feedback?

• output shuts off original stimulus to accelerate response

• anything that disturbs the balance

• the current conditions

• enhances original stimulus to accelerate response

Tags

NGSS.HS-LS1-3

The four elements of the human body

• oxygen, carbon, hydrogen, nitrogen

• phosphorus, calcium, oxygen, fluorine

• sodium, nitrogen, oxygen, carbon

• hydrogen, oxygen, phosphorus, sodium

Molecule?

• negatively charged ion

• charged, unequal sharing of electrons between 2 atoms

• 2 or more atoms bonded together (any type)

• involve the transfer of valence electrons resulting in ions

Compund?

• positively charged ion

• molecule that has 2 or more atoms bonded together (different)

• 2 or more atoms bonded together (any type)

• negatively charged ion

Tags

NGSS.MS-PS1-1

Polar covalent bond?

• not charged, equal sharing of electrons between the atoms

• charged, unequal sharing of electrons between 2 atoms

• substance present in greatest amount

• releases energy

Tags

NGSS.HS-PS1-1