22 Questions
Why does ice float?
Because of hydrogen bonds
What happens to the pH of a solution as the concentration of hydronium/hydrogen ion increases?
It decreases
What is the effect of evaporative cooling on an organism's body temperature?
It lowers the body temperature
What is the term for the amount of energy required to change the temperature of 1 gram of water by 1°C?
Specific heat
What is the purpose of hydrogen bonds in liquid water?
To facilitate the breaking and re-forming of bonds
What type of bond forms between oxygen and hydrogen within a water molecule?
Polar covalent bond
What is the term for the attraction between water molecules and other polar substances?
Adhesion
What is responsible for the ability of water to dissolve a wide variety of substances?
Its partial positive and negative charges
What is the result of the interaction of hydrogen bonds between water molecules at the surface of the water?
Surface Tension
What is the term for the ability of water to flow through narrow spaces, such as the xylem of plants?
Capillary Action
What is the ratio of C, H, and O in carbohydrates?
1:2:1
Which type of carbohydrate is found in the exoskeleton of arthropods?
Chitin
What type of bond links two monosaccharides together to form a disaccharide?
Glycosidic linkage
What is the main difference between saturated and unsaturated fatty acids?
The presence of double bonds
Which nucleic acid is found in animals?
DNA
What is the bond between the carboxyl and amino groups in amino acids?
Peptide bond
What is the directionality of DNA and RNA?
5'3'
What is the type of sugar found in DNA?
Deoxyribose
What is the general structure of phospholipids?
Glycerol and 2 fatty acids
What type of bond is formed between different polypeptides in quaternary protein structure?
Any type of bond
What is the main characteristic of lipids?
They are nonpolar
What is the term for the fluid found inside the cell?
Cytosolic fluid
Learn about the composition, monomers, and types of carbohydrates, including glucose, starch, and cellulose. Understand the differences between starch and cellulose, and how they are used in plants and animals.
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