Cell Membrane & Organelles

Front

What is the structure of the nucleus?

Back

Double membrane (nuclear envelope) with nuclear pores, nucleoplasm, and chromatin.

Front

What is the function of the nucleus?

Back

Contains genetic information, site of gene expression, separates nucleoplasm from cytoplasm.

Front

What is the structure of the rough endoplasmic reticulum (RER)?

Back

Interconnected membranous flattened sacs (cisternae) studded with ribosomes.

Front

What is the function of the rough endoplasmic reticulum (RER)?

Back

Synthesize, modify, and transport proteins to the Golgi body.

Front

What is the structure of the smooth endoplasmic reticulum (SER)?

Back

Interconnected membranous tubules (not flattened sacs) without ribosomes.

Front

What is the function of the smooth endoplasmic reticulum (SER)?

Back

Synthesize and transport lipids and carbohydrates, detoxify drugs, store calcium ions.

Front

What is the structure of the Golgi body/apparatus?

Back

Series of flattened membranous sacs (cisternae) not interconnected.

Front

What are the two regions of the Golgi body?

Back

Cis face (receives vesicles from RER) and Trans face (packages proteins into vesicles).

Front

What is the function of lysosomes?

Back

Contain hydrolytic enzymes for intracellular digestion and breakdown of unwanted organelles.

Front

What is the structure of mitochondria?

Back

Double-membrane bound organelle with outer membrane, inner membrane (folded into cristae), and matrix.