4.4 The Endomembrane Systems and Proteins

Question 1

endoplasmic reticulum

Answer 1

series of interconnected membranous sacs and tubules that collectively
modifies proteins and synthesizes lipids

Question 2

rough endoplasmic reticulum (RER)

Answer 2

studded with ribosomes
and engages in protein modification and phospholipid
synthesis

Question 3

smooth endoplasmic reticulum (SER)

Answer 3

functions include synthesis of carbohydrates, lipids, and steroid hormones; detoxification of medications and
poisons; and storing calcium ions.

Question 4

Golgi apparatus

Answer 4

Modifies, sorts, tags, packages, and distributes lipids and
proteins

Question 5

lysosomes

Answer 5

digestive component and organelle-recycling facility of animal cells