The plasma membrane is a selectively permeable barrier due to presence of specific transport carbohydrates proteins none of these amino acids TRUE ANSWER : ? YOUR ANSWER : ?
Biological membranes are like water beds because the membrane is thin compared to the enclosed volume All of these they (normally) do not leak their contents they are always moving TRUE ANSWER : ? YOUR ANSWER : ?
Lysozymes are found in plant cells microbial cells all of these animal cells TRUE ANSWER : ? YOUR ANSWER : ?
The smooth endoplasmic reticulum (SER) is the site of carbohydrate synthesis phospholipid synthesis protein synthesis amino acid synthesis TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not found in membranes? Glycolipids Glycoproteins Nucleic acids Phospholipids TRUE ANSWER : ? YOUR ANSWER : ?
Membrane lipids are hydrophobic hydrophilic ampiphillic none of these TRUE ANSWER : ? YOUR ANSWER : ?
The model that is now known to be correct for the structure of biological membrane is Fluid mosaic model Lock and Key model Page's model Lac Operon model TRUE ANSWER : ? YOUR ANSWER : ?
The membrane proteins that catalyze active transport reactions differ from soluble enzymes as they do not enhance the rates of reaction the products of the reaction move in a specific direction the substrates of the reaction are all outside the cell they are permanently changed during the reaction TRUE ANSWER : ? YOUR ANSWER : ?
The movement of molecules across a membrane by passive transport does not require none of these an input of metabolic energy internal energy vibrational energy TRUE ANSWER : ? YOUR ANSWER : ?
Exocytosis is the secretion of proteins is the uptake of macromolecules from the extracellular space into the cell across the plasma membrane out of the cell across the plasma membrane into the extracellular space out of the cell across the plasma membrane into the intracellular space is the uptake of macromolecules from the intracellular space into the cell across the plasma membrane TRUE ANSWER : ? YOUR ANSWER : ?