Chapter 9 pre Flashcards
Which of the following types of lipid is composed of four fused hydrocarbon rings?
steroid
A protein that has carbohydrates covalently bound to it is called a ____________________.
glycoprotein
Lipids are macromolecules that are _______ and ______________
non polar
hydrophobic
Which of the following synthesizes carbohydrates, lipids, and steroid hormones, stores calcium ions, and detoxifies certain chemicals?
smooth endoplasmic reticulum
Phospholipids have a hydrophilic part and a hydrophobic part of the molecule, making them ____________________.
amphipathic
Which type of endoplasmic reticulum is studded with ribosomes?
rough ER
The nuclear envelope consists of a single membrane.
False
Select all of the components of the endomembrane system.
Plasma membrane
Nuclear envelope
Vesicles
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi apparatus
Lysosomes
All proteins are produced by ribosomes that are attached to the rough endoplasmic reticulum.
False
Information from genes/DNA are copied, and then the __________ decodes the message to build a __________
ribosome
protein
The plasma membrane of animal cells contains _______________, which helps to keep the membrane fluid.
cholesterol
Which of the following types of lipid is composed of four fused hydrocarbon rings?
steroid
A molecule that binds to to receptor and elicits a response is called a(n) ___________________________.
ligand
A long-chain hydrocarbon with a carboxyl group at one end is called a _____________________.
fatty acid
Once proteins have been tagged and modified within the Golgi apparatus, they are packaged into transport vesicles that bud from the Golgi’s ____________ face.
trans
