Week 1 learning tool

What does it mean to maintain homeostasis in a cell?

• To allow the external environment to dictate the internal environment of the cell
• To intentionally disrupt the balance of the internal environment of the cell
• To only maintain balance in the external environment of the cell
• To keep the internal environment of the cell stable and balanced despite changes in the external environment.

What do receptor proteins do in the cell membrane?

• They break down molecules outside the cell
• They prevent molecules from entering the cell
• They bind to specific molecules outside the cell and transmit signals to the inside of the cell.
• They have no function in the cell membrane

What do marker proteins tell the cell membrane?

• Color and texture of the cell membrane
• Location and size of the cell
• Movement and shape of the cell
• Identity and function of the cell

What is the role of transport proteins in the cell membrane?

• They help in the replication of the cell

• They assist in the movement of substances across the cell membrane

• They provide structural support to the cell membrane

• They are responsible for cell division

What is the function of the cell membrane in maintaining homeostasis?

• It allows all substances to freely enter and exit the cell

• It controls the movement of substances in and out of the cell

• It has no role in maintaining homeostasis

• It only prevents harmful substances from entering the cell

What is the significance of the lipid bilayer in the cell membrane?

• It provides energy to the cell

• It forms a barrier that separates the cell from its environment

• It helps in the replication of the cell

• It is responsible for cell division

What do anchor proteins do for the cell membrane?

• Anchor proteins help transport nutrients across the cell membrane.
• Anchor proteins regulate the fluidity of the cell membrane.
• Anchor proteins attach the cell membrane to the cytoskeleton.
• Anchor proteins protect the cell membrane from damage.

What does it mean to be hydrophobic?

• To absorb and retain water.
• To be neutral towards water.
• To repel or not mix with water.
• To attract and mix with water.

What does it mean to be hydrophilic?

• Having no affinity for water.
• Being afraid of water.
• Having a strong affinity for water.
• Being able to repel water.