Plasma Membrane and Endomembrane System

Identify cholesterol molecule

• structure a

• structure b

• structure h

• structure i

Small, nonpolar, hydrophobic molecules such as fatty acids

• easily pass through the membrane's bilayer

• very slowly diffuse through the bilayer

• require transport proteins

• enter through endocytosis

Which structure is the hydrophilic polar head of the phospholipid molecule?

• F

• D

• C

• A1

What is the component of the plasma membrane that helps to minimize the effects of temperature on fluidity

• cholesterol

• phospholipids

• carbohydrates

• proteins

The glycocalyx is made of which two plasma membrane structures?

• glycolipid

• glycoprotein

• glycocarbs

• glycoacids

The more saturated fat is in a membrane, the more __________ it is.

• rigid

• permeable

• flexible

• thin

Bounded by a nuclear membrane, this organelle contains DNA (deoxyribonucleic acid), the hereditary information of the cell.

• RIBOSOME

• GOLGI APPARATUS

• NUCLEUS

• PLASMA MEMBRANE

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

In the cytoplasm, this organelle assists in the assembly of

amino acids into proteins.

• NUCLEUS

• LYSOSOME

• MITOCHONDRIA

• RIBOSOMES

Tags

NGSS.MS-LS1-2

These vesicles from a Golgi apparatus contain digestive enzymes that break down food, cellular debris, and foreign invaders such as bacteria.

• RIBOSOMES

• CHLOROPLAST

• ENDOPLASMIC RETICULUM

• LYSOSOMES

Tags

NGSS.MS-LS1-2

Identify the organelle presented in the picture.

• CHLOROPLAST

• MITOCHONDRIA

• GOLGI APPARATUS

• SMOOTH ER

Tags

NGSS.HS-LS1-7