Cell Transport/Biomolecules

Plants are constantly absorbing water to keep their cells in a hypotonic environment. Why would they try to maintain this condition?

• Hypotonic conditions move water into the cells, increasing turgor pressure.

• Hypotonic conditions move water out of the cells, relieving the pressure.

• There is no structural reason for this. Plants rely solely on cell walls to give them structure.

• Hypotonic conditions put the cells in a balanced state.

Tags

NGSS.HS-LS1-3

How does the cell membrane maintain homeostasis for the cell?

• It contains the DNA which gives instructions to the cell.

• The cell membrane produces ATP energy for the cell.

• The cell membrane determines what can enter and exit the cell.

• The cell membrane provides structure to cells.

Tags

NGSS.HS-LS1-3

What type of transport is being shown?

• Protein Pump

• Endocytosis

• Facilitated Diffusion

• Osmosis

What clues indicate that the image is showing an active transport process?

• All other answers

• The molecules are being pushed against the concentration gradient.

• Energy usage is being shown with an explosion symbol.

• ATP is present and being used.

Which osmotic conditions do animals maintain with their cells?

• Hypotonic

• Isotonic

• Hypertonic

• Osmotonic

Tags

NGSS.HS-LS1-3

What would happen to a human cell if it was put in hypotonic conditions?

• It would shrivel up

• Nothing would happen because the concentrations are balanced.

• It would expand and could possibly burst.

• The cell would exhibit turgor pressure with its neighboring cells.

Which situation describes Endocytosis?

• Cell membrane wraps around larger nutrients to pull them into the cell forming a vesicle.

• A protein carrier allows larger molecules to flow through the membrane

• Water follows a concentration gradient through a membrane.

• A vesicle fuses with the membrane, releasing waste out of the cell.

Which situation describes Osmosis?

• A protein in the membrane uses ATP energy to actively push small molecules against the gradient.

• A protein carrier or channel allows larger molecules to flow through the membrane

• Water follows a concentration gradient through a membrane.

• A vesicle fuses with the membrane, releasing waste out of the cell.

Which situation describes exocytosis?

• A protein in the membrane uses ATP energy to actively push small molecules against the gradient.

• A protein carrier or channel allows larger molecules to flow through the membrane

• Water follows a concentration gradient through a membrane.

• A vesicle fuses with the membrane, releasing waste out of the cell.

Which situation describes facilitated diffusion?

• A protein in the membrane uses ATP energy to actively push small molecules against the gradient.

• A protein carrier or channel allows larger molecules to flow through the membrane

• Water follows a concentration gradient through a membrane.

• A vesicle fuses with the membrane, releasing waste out of the cell.