24 Questions
What is the main function of ribosome RNA?
Serving as a site for protein synthesis
Which RNA carries the code transcribed from DNA and directs protein synthesis?
Messenger RNA
What is the role of transfer RNA in protein synthesis?
Delivering amino acids to protein chains
Which type of molecules are lipids soluble in?
Nonpolar organic solvents
What accounts for the solubility behavior of lipid molecules?
Large hydrocarbon portion and few polar functional groups
How do small ions and polar molecules primarily diffuse through the cell membrane?
Using protein pores
Which type of reactions release free energy and make it available to do work?
Spontaneous reactions
What is the main source of biochemical energy in living organisms?
Exergonic reactions
What is the purpose of ATP in living organisms?
Energy transportation
Which organelle is often referred to as the cell's power plant?
Mitochondria
What occurs when one of the -PO3- groups is removed from ATP?
It releases energy
What provides the external energy needed for photosynthesis to occur in plants?
Sunlight
What is the reverse of ATP hydrolysis reaction known as?
Phosphorylation
Which type of reactions are phosphorylation reactions?
Endergonic
What does the Electron Transport Chain couple with ATP formation?
Oxygen reduction
What is responsible for converting ADP to ATP in electron transport chain?
Hydrogen phosphate ion
Where do the electrons combine with oxygen and hydrogen ions to produce water?
Mitochondria
Which event drives the conversion of ADP to ATP in the electron transport chain?
Electron transport chain energy release
Which type of sugar contains a ketone?
Ketose
What is the general chemical formula for monosaccharides?
Cn(H2O)n
What type of sugars are chiral molecules?
Monosaccharides
What type of sugar does RNA contain?
Ribose
What is the role of lectins in biological recognition?
They play a role in biological recognition phenomena
Which of the following is not a characteristic of monosaccharides?
Toxic
Test your knowledge on carbohydrates, a class of naturally occurring polyhydroxy aldehydes and ketones. Learn about monosaccharides, aldoses, ketoses, and how the number of carbon atoms determines the classification of sugars.
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