Cell Membrane Lesson

What are the two main components of the cell membrane?

• phospholipid bilayer

• embedded proteins

• hypotonic solution

• sugar, salt

What part of the membrane is red?

(above the membrane is the outside of the cell and under is the inside)

• phospholipids

• glucose molecules

• oxygen molecules

• channel protein

Tags

NGSS.MS-LS1-2

the core of nearly all cell membranes is a double-layered sheet called a(an)

• lipid bilayer

• cytoplasm

• eukaryotic organnelles

• prokaryotic organelles

Tags

NGSS.MS-LS1-2

what does it mean that biological membranes are selectively permeable.

• they "pick and choose" which molecules across, usually based on size

• They randomly allow molecules to cross

Tags

NGSS.MS-LS1-2

The cell membrane, also known as the ​ (a)   membrane, is found in ​ (b)   types of cells. It controls and ​ (c)   what is allowed in and out of the cell to help maintain ​ (d)   or a balanced environment. It also is known as the ​ (e)   because the different parts of the cell membrane can move around and are not fixed in one location.

• plasma

• all

• regulates

• homeostasis

• fluid mosaic model

• some

Tags

NGSS.MS-LS1-2

What are the cholesterol's jobs?

• stability

• cell recognition

• movement of large molecules

• cell communication

Tags

NGSS.MS-LS1-2

What part of the membrane is yellow?

(above the membrane is the outside of the cell and under is the inside)

• channel protein

• oxygen molecules

• phospholipids

• glucose molecules

Tags

NGSS.MS-LS1-2

Slect the true statemnets

• Membranes are fluid and flexible

• Membranes are strong and stiff

• Membranes can self repair

• Membranes are the first part of a cell to die

Match the following:

• Cholesterol

• regulates what goes in and out of the cell

• Plasma or Cell Membrane

• stabilizes and maintains flexibility of cell membrane

• Phospholipid bilayer

• located outside of the membrane; helps with cell communication and cell-to-cell connections

• Transport or Channel Proteins

• 2 layers; allows small & non-polar molecules to pass through the membrane

• Carbohydrates

• allows large and polar molecules to pass through the membrane

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

All living things are made of one or more cells. What is true of all cells?

• They all have DNA in their cytoplasm.

• They all have DNA in their nucleus.

• They all have cytoplasm.

• They all have organelles bound by membrane. They all have DNA in their nucleus.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2