What is NOT TRUE about the cell membrane

It controls what enters and leaves the cell

What is the correct order of organization

organelles->cells->tissue->organs->organ systems-> organism

tissue->cells->organs->organ systems-> organism->organelles

organs->organ systems->organelles->organism->cells->tissue

organelles->cells->tissue->organs->organism->organ system

Which of the following best describes the overall structure of the cell membrane?

A phospholipid bilayer with embedded proteins.

A carbohydrate membrane with embedded amino acids.

A protein bilayer with embedded phospholipids.

Nucleic acid membrane with embedded proteins.

Which of the following moves molecules from LOW --> HIGH concentrations?

Both Passive and Active Transport

Neither Passive nor Active Transport

Which of the following moves molecules from HIGH --> LOW concentrations?

Both Passive and Active Transport

Neither Passive nor Active Transport

The picture shows a contractile vacuole of a unicellular freshwater organism. The vacuole regulates the flow of water into and out of the cell in an aquatic environment. What conditions cause the contractile vacuole to fill with water ?

the concentration of water is greater outside the cell than inside the cell

the temperature of water in the vacuole is higher than the temperature of its environment

the concentration of water inside the cell is the same as the concentration outside the cell

the temperature of water in the vacuole is lover than the temperature of its environment

This diagram shows cellular activity across a cell membrane. Which two processes does this diagram most directly model?

homeostasis and transport of molecules

energy conversions and synthesis of new molecules

synthesis of new molecules and homeostasis

transport of molecules and energy conversions

Under what conditions will water flow into cells causing them to swell?

When water concentrations is higher outside the cell than inside.

When water concentration is higher inside the cell than outside.

When the solution outside the cell is salty.

When the cell is in an isotonic solution.

What happens to the cell membrane during exocytosis?

A vesicle fuses with the membrane and releases its contents out of the cell.

Molecules pass directly through the phospholipids

Molecules use a transport protein to enter the cell.

Water flows towards the higher solute concentration side of the membrane.

Which way does water flow in osmosis?

Towards areas with more dissolved particles

Towards areas of lower water concentrations

Towards areas of higher water concentrations

Towards areas with fewer dissolved particles

Why do cells change in size and shape in different concentration solutions?

Water is entering or leaving the cells.

The cells are consuming energy.

The cells are absorbing nutrients from the solution.

The cells are undergoing mitosis.

What is the structure of a phospholipid?

A pair of hydrophobic lipid tails and a hydrophilic phosphate head

A pair of hydrophobic phosphate tails and a hydrophilic lipid head

A cholesterol head with a pair of lipid tails

A carbohydrate head with cholesterol tails

What does a salty solution do to cells?

Puncture holes in their cell membranes

Cause water to flow into the cells

What is a concentration gradient?

A difference in concentrations that drives molecules to flow from high to low concentrations

Molecules maintaining homeostasis by moving to areas of higher concentrations

A membrane filtering out large, charged, and insoluble molecules.

The process of using energy to move large amounts of material into or out of a cell.

Why are mitochondria important for active transport?

They produce ATP to power the processes

They produce the vesicles needed for bulk transport

They produce the proteins needed to move molecules across the membrane

They control the passage of materials into and out of the cell

You are conducting osmosis experiments with a test tube of human cells in solution. You pour table salt into the test tube. According to the principles of osmosis, what can you predict will happen to the cells?

They will undergo rapid mitosis.

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which has occurred?

The water in the gums has moved from a high to a low concentration of water.

The swollen gums have absorbed the saltwater solution

The saltwater solution lowers the temperature of the water in the gums

The salt in the solution has moved against the concentration gradient

A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?

They will shrink because water will move out of them.

They will swell because water will move into them

They will swell because salt will move into them.

They will shrink because salt will move out of them

Cells & Transport Test Review

Authored by Jamie Parker

Biology

9th Grade

NGSS covered

Used 87+ times

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

nucleus

cell membrane

cell wall

The cell below is in a _________ solution.

Hypotonic

Hypertonic

Isotonic

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Cells & Transport Test Review

Osmosis is the movement of _____ across a membrane.

This picture represents what type of cell transport?

This picture represents which type of cellular transport?

Which is true about active transport?

Molecules diffusing with the concentration gradient through a protein channel is...

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

The cell below is in a _________ solution.

A cell in an isotonic solution will

A cell in a hypotonic solution will

What type of transport is this?

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