Expert Group 1: Cell Membrane

Benjamin, William, and David are studying cells in their biology class. They learned that the plasma membrane has a specific function. If they were to compare the plasma membrane to a security guard at a concert, what would be its function?

• To control what goes in and out of the concert

• To produce energy for the concert

Isla, Kai, and Olivia are studying cell biology. They come across a term 'phospholipid' in their textbook. Olivia thinks it's a jelly-like substance in the cytoplasm, Kai believes it's a specialized compartment of the cell, and Isla thinks it's a lipid molecule with a hydrophilic head and two hydrophobic tails. Who is correct?

• None of them

• Isla

Elijah, Anika, and Aiden are studying for their biology exam. They are discussing the components of the cytosol in a cell. Elijah thinks it's made up of lipids and sugars, Anika thinks it's DNA and organelles, Aiden thinks it's phospholipids and proteins, but their teacher told them it's water and other molecules, including enzymes. Who is correct?

• Water and other molecules, including enzymes

• Phospholipids and proteins

David, Olivia, and Anika are conducting a science experiment. They noticed that some substances can enter the cell through the plasma membrane, while others cannot. What term describes this characteristic of the plasma membrane?

• It means the plasma membrane is semipermeable

• It means anything can cross the barrier of the plasma membrane

Aria, Evelyn, and Noah are studying cells in their biology class. They are discussing the difference between the cytosol and the cytoplasm. Can you help them understand the difference?

• The cytosol is the jelly-like material in which the contents of the cell are suspended, while the cytoplasm includes the organelles

• The cytosol is the barrier around the cell, while the cytoplasm is the water inside the cell

James, Mia, and Grace are studying cell biology. They are examining a cell under a microscope and discussing what the plasma membrane of the cell is made of. What do you think they concluded?

• A double layer of phospholipids

• Water and enzymes

Aiden, Abigail, and Luna are studying cells in their biology class. They learned about the phospholipid bilayer in the plasma membrane. According to their lesson, what is the role of this phospholipid bilayer?

• It acts like a gatekeeper, controlling what goes in and out of the cell

• It acts like a raincoat, keeping water out of the cell

Olivia, Avery, and Hannah are conducting a science experiment in their kitchen. They are observing the process of baking a cake, which involves various chemical reactions. What would be the role of enzymes (similar to baking powder in this case) in this scenario?

• To control what ingredients go into the cake

• To speed up the chemical reactions involved in baking

Oliver, Henry, and Evelyn are studying cells in their biology class. They learned that the plasma membrane plays a role similar to a security guard at a concert. Can you guess what this role might be?

• It's like the plasma membrane is storing the concert's (cell's) playlist (genetic information)

• It's like the plasma membrane is guarding the concert (cell) from unwanted fans (intruders)