Olivia Wee Biology Final Test Practice Essays

Submitted By 2009051
Words: 364
Pages: 2

Biology
1. Drinking seawater can be very dangerous especially to someone who’s thirsty because it has a higher salt concentration than the cells in your digestive system. Therefore, if consumed, your body will dilute the seawater with its own water making you thirstier.
2. Protein model with peptide bonds

3. Polysaccharide
4. Two parts of a fat molecule are glycerol and fatty acids.
5. The pH or temperature can increase the effectiveness of an enzyme if it’s at the optimum pH or temperature. Too low of a temperature can decrease the effectiveness of an enzyme, and too high of a temperature denatures the enzyme. Outside of its pH range, the enzyme is denatured.
6. Diagram: Hypertonic, hypotonic, and isotonic

7. Catabolic enzyme reactions involve breaking down single substrate molecules into two separate molecules which produces energy. Anabolic enzyme reactions involve forming two substrate molecules into a single molecule which uses energy.
8.a- Cellulose or Monosaccharide
8.b- RNA or Nucleotides
8.c- Enzymes or Amino Acids
9. Diagram of a water molecule that includes its polarity

10.
-Amino group
-Side chain
-Acid group

11. It’s important that your blood is isotonic to your red blood cells because if it was hypotonic then the water in the blood would enter the red blood cells and burst them. If it was hypertonic then the water in the red blood cells would leave to the blood to balance the concentration, but then the red blood cells would