3. LS.2e - Cellular Transport

What is the process called when water molecules move across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration?

• Diffusion

• Osmosis

• Active transport

• Endocytosis

Tags

VA.LS.2.e

Which of the following is a characteristic of diffusion?

• Requires energy input

• Moves substances against the concentration gradient

• Moves substances from high to low concentration

• Involves transport proteins

Tags

VA.LS.2.e

Explain how osmosis is different from diffusion.

• Osmosis involves the movement of solutes, while diffusion involves the movement of water.

• Osmosis requires energy, while diffusion does not.

• Osmosis is the movement of water across a membrane, while diffusion is the movement of solutes.

• Osmosis occurs in plants, while diffusion occurs in animals.

Tags

VA.LS.2.e

Which of the following scenarios is an example of diffusion?

• A plant absorbing water through its roots

• A drink mixing moving through a bottle of water.

• A cell using energy to pump ions across the membrane

• Water moving into a cell causing it to swell

Tags

VA.LS.2.e

Why is cellular transport important for maintaining homeostasis in cells?

• It allows cells to produce energy.

• It helps cells to communicate with each other.

• It regulates the internal environment of the cell.

• It enables cells to grow and divide.

Tags

VA.LS.2.e

Predict what would happen to a freshwater fish if it were placed in saltwater.

• The fish would swell and burst.

• The fish would remain the same.

• The fish would lose water and dehydrate.

• The fish would absorb more salt.

Tags

VA.LS.2.e

What is the primary difference between passive and active transport?

• Passive transport requires energy, while active transport does not.

• Neither active or passive transport requires any energy from the cell.

• Active transport requires energy, while passive transport does not.

• Both active transport and passive transport requires energy from the cell.

Tags

VA.LS.2.e

Which of the following best describes the role of transport proteins in cellular transport?

• They provide energy for active transport.

• They facilitate the movement of substances across the cell membrane.

• They prevent substances from entering the cell.

• They are involved in the synthesis of proteins.

Tags

VA.LS.2.e

A cell is placed in a solution, and it neither gains nor loses water. What type of solution is it in?

• Hypertonic

• Hypotonic

• Isotonic

• Supersonic

Tags

VA.LS.2.e

Design an experiment to demonstrate osmosis using a potato, water, and salt.

• Place the potato in pure water and observe it shrinking.

• Place the potato in saltwater and observe it swelling.

• Place the potato in saltwater and observe it shrinking.

• Place the potato in pure water and observe it remaining the same.

Tags

VA.LS.2.e