Worksheet: Nuclear Envelope | Structure, Function & Diseases

The space between the inner and outer nuclear membranes is called the (a)   .

• Nuclear envelope

• Endoplasmic reticulum

• Lamina

• Perinuclear space

What is a nuclear localization signal?

• An amino acid tag that allows a protein access into the nucleus.

• A ribosome on the outer nuclear membrane.

• A cytoplasmic signal that tells all of the nuclear pores to open up.

• A small protein that can diffuse passively into the nucleus.

The perinuclear space is contiguous with the inside of the (a)   .

• lysosome

• endoplasmic reticulum

• Golgi apparatus

• nucleus

What are the two layers of the nuclear envelope membrane called?

• The outer nuclear membrane and the inner nuclear membrane.

• The endoplasmic reticulum and the nuclear membrane.

• The inner nuclear membrane and the lamina.

• The outer nuclear membrane and the lamina.

The lamina ______

• helps proteins get through the nuclear pores.

• is a thin layer that coats the outside of the nuclear envelope.

• is a meshwork of proteins that shapes and structures the nucleus.

• connects the inner and outer nuclear membranes.

Identify the part of the membrane that allows small molecules to pass through

Drag and label the parts of the phospholipid bilayer.

a

b

hydrophobic

hydrophilic

Tags

HS-LS1-1

Label the parts of the cell membrane

a

b

c

fatty acid tails

phosphate heads

protein

Tags

NGSS.MS-LS1-2

Match the following functions to the parts of the cell membrane:

• Carbohydrate chains

• Strengthens the membrane

• Phospholipids

• Transport molecules through

• Cholesterol

• Forms a bilayer

• Proteins

• Used in cell signaling

which organelle is responsible for controlling what enters and exits the cell?

Tags

NGSS.MS-LS1-2