Marathon Runner HW 1

If there is a concentration gradient, substances will move from an area of high concentration to an area of [ equal / low ] concentration.

• equal

• low

Tags

NGSS.MS-PS1-2

Water enters the cell by [ diffusion / osmosis ].

• diffusion

• osmosis

Oxygen enters the cell by [ diffusion / osmosis ].

• diffusion

• osmosis

The movement of molecules from an area of high concentration to an area of low concentration is called [ osmosis / diffusion ].

• osmosis

• diffusion

Tags

NGSS.MS-LS2-3

A solution that causes a cell to swell is called a [ hypertonic / hypotonic ] solution.

• hypertonic

• hypotonic

A solution that causes a cell to shrink is called a [ hypertonic / hypotonic ] solution.

• hypertonic

• hypotonic

Tags

NGSS.MS-LS1-2

A solution with the same concentration of solutes as inside the cell is called a [ hypertonic / isotonic / hypotonic ] solution.

• hypertonic

• isotonic

• hypotonic

Tags

NGSS.MS-PS1-2

Reorder the following to show the steps of a HEALTHY marathon runner's body responding to exercise.

• Release carbon dioxide by breathing out and water by sweating or peeing as other products of the reaction

• Breathe in oxygen through your respiratory system

• Transport glucose and oxygen through your bloodstream to your muscle cells

• Eat food containing glucose via your digestive system

• Mitochondria in your muscle cells take in the 2 reactants and produce ATP energy for cells to use

Tags

NGSS.MS-LS1-7

The tendency of an organism to maintain a balanced state in order to stay healthy.

• Stimuli
• Response
• Tropism
• Homestasis

During a swimming competition, Marla and James decided to see who could hold their breath the longest underwater. This could be dangerous because without oxygen, brain cells...

• cannot make enough ATP

• have too few mitochondria

• make too many enzymes

• have too much water

Tags

NGSS.HS-LS1-7