Passive Transport: Simple, Facilitated, and Osmosis

The process a cell uses to maintain stable internal conditions when the environment around it changes is called -

Tags

NGSS.HS-LS1-3

Which cell structure is responsible for maintaining homeostasis?

• Cell Membrane

• Cell Wall

• Nucleus

• Ribosome

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NGSS.HS-LS1-3

The plasma membrane contributes to the maintenance of cellular homeostasis by performing which of the following functions?

• controlling which molecules enter and exit the cell

• Converting ATP to glucose for energy storage

• Initiating the process of protein synthesis

• Receiving signals for DNA replication

Tags

NGSS.HS-LS1-3

Membrane proteins assist with the function of transporting molecules across the cell membrane and which other function?

• receiving signals to begin DNA replication

• helping the cell communicate with the outside

• helping the cell initiate protein synthesis

• begin the process of cellular respiration

Organize these options into the right categories

Groups:

(a) Passive Transport

,

(b) Active Transport

• Sodium/Potassium Pump

• no energy

• Endocytosis

• Osmosis

• high to low

• Simple Diffusion

• Exocyotosis

• energy

• Facilitated Diffusion

• low to high

Matching the following functions to their corresponding terms.

• Passive Transport

• Control system for homeostasis, increases rate of change away from homeostasis

• Positive Feedback Loop

• High to low, nature flow - no energy

• Active Transport

• Movement of water, high to low concentrations

• Negative Feedback Loop

• Control system for homeostasis, adjusts the body's conditions back to homeostasis

• Osmosis

• Low to High, requires energy

Tags

NGSS.HS-LS1-3

Which of the following statements describes the process of passive transport in a cell?

• Ions move across the plasma membrane using a carrier protein and ATP until the inside of the cell has a higher concentration of positive charges. 

• Salt molecules move across the plasma membrane through a channel protein until solute concentrations are equal on both sides of the membrane.

• Enzymes move across the plasma membrane until the cell has completed metabolism.

• Sugar molecules move across the plasma membrane until the cell has enough energy to grow in size and divide.

Which of the following statements describes the process of passive transport in a cell?

• Oxygen molecules produced by photosynthesis diffuse out into the low concentration of the atmosphere from the high concentration inside the plant leaf.

• Nitrate Ions move from the soil into the root hair cells of plants even though the nitrate ion concentration is higher inside of the root hair cells.

• Leukocytes use energy to change the shape of their cell membranes to surround and engulf bacteria, removing the bacteria from the blood.

• The movement of three sodium ions to the outside of a cell for every two potassium ions that it moves into the cell by use of one ATP molecule

Diffusion is the movement of particles from an area with a ​ (a)   concentration of particles to an area with a ​ (b)   concentration of particles. This occurs through a cell's semi-permeable membrane.

• higher
• lower
• equal

Osmosis is the movement of water from an area with a ​ (a)   concentration of water to an area with a ​ (b)   concentration of water. This occurs through a cell's semi-permeable membrane.

• higher
• lower
• equal