Podcast
Questions and Answers
Why does ice float?
Why does ice float?
- Because of high specific heat
- Because of hydrogen bonds (correct)
- Because of temperature buffer
- Because of evaporative cooling
What happens to the pH of a solution as the concentration of hydronium/hydrogen ion increases?
What happens to the pH of a solution as the concentration of hydronium/hydrogen ion increases?
- It decreases (correct)
- It increases
- It stays the same
- It becomes neutral
What is the effect of evaporative cooling on an organism's body temperature?
What is the effect of evaporative cooling on an organism's body temperature?
- It has no effect on body temperature
- It maintains a stable body temperature
- It lowers the body temperature (correct)
- It raises 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?
What is the term for the amount of energy required to change the temperature of 1 gram of water by 1°C?
What is the purpose of hydrogen bonds in liquid water?
What is the purpose of hydrogen bonds in liquid water?
What type of bond forms between oxygen and hydrogen within a water molecule?
What type of bond forms between oxygen and hydrogen within a water molecule?
What is the term for the attraction between water molecules and other polar substances?
What is the term for the attraction between water molecules and other polar substances?
What is responsible for the ability of water to dissolve a wide variety of substances?
What is responsible for the ability of water to dissolve a wide variety of substances?
What is the result of the interaction of hydrogen bonds between water molecules at the surface of the water?
What is the result of the interaction of hydrogen bonds between water molecules at the surface of the water?
What is the term for the ability of water to flow through narrow spaces, such as the xylem of plants?
What is the term for the ability of water to flow through narrow spaces, such as the xylem of plants?
What is the ratio of C, H, and O in carbohydrates?
What is the ratio of C, H, and O in carbohydrates?
Which type of carbohydrate is found in the exoskeleton of arthropods?
Which type of carbohydrate is found in the exoskeleton of arthropods?
What type of bond links two monosaccharides together to form a disaccharide?
What type of bond links two monosaccharides together to form a disaccharide?
What is the main difference between saturated and unsaturated fatty acids?
What is the main difference between saturated and unsaturated fatty acids?
Which nucleic acid is found in animals?
Which nucleic acid is found in animals?
What is the bond between the carboxyl and amino groups in amino acids?
What is the bond between the carboxyl and amino groups in amino acids?
What is the directionality of DNA and RNA?
What is the directionality of DNA and RNA?
What is the type of sugar found in DNA?
What is the type of sugar found in DNA?
What is the general structure of phospholipids?
What is the general structure of phospholipids?
What type of bond is formed between different polypeptides in quaternary protein structure?
What type of bond is formed between different polypeptides in quaternary protein structure?
What is the main characteristic of lipids?
What is the main characteristic of lipids?
What is the term for the fluid found inside the cell?
What is the term for the fluid found inside the cell?
