Denitrification occurs under:     anaerobic conditions     aerobic conditions     both aerobic and anaerobic conditions

You have two types of cells (animal cells and plant cells) that you will place in a variety of conditions. Please describe what would happen to each of those two cells in the following solutions, i) isotonic solution; ii) hypertonic solution; iii) hypotonic solution.

Explain what REDOX reactions are and their importance to the cell.

100% water Part D: Application 4% water 1. The paramecium (see Figure 3-1) is a single-celled organism. Go to the web and look up this organism. Now select an answer from each blank. H2O (iso-, hypo-, or nucleus oral groove Paramecia live in a(n) hypertonic) environment. In this environment, the paramecium takes in a lot of water through the process of (osmosis, diffusion, facilitated diffusion, or active transport). In order to get rid of this excess water, the paramecium has a specialized organelle called the contractile vacuole that acts as a water pump -contractile vacuole to expel water through the process of (osmosis, diffusion, facilitated diffusion, or active transport). FIGURE 3-1 Paramecium. 30 Anatomy and Physiology | Laboratory Manual

Which solution is most hypertonic? And which solution is most hypotonic?

Describe characteristics: speed up reactions, proteins, reusable, denature (pH, heat) when reffering to enzymes outside of the cell and inside of the cell.

b. During peptidoglycan synthesis, removal of a phosphate group from bactoprenel pyrophosphate is inhibited. What is the immediate outcome? What does this mean for cell wall synthesis? Which antibiotic works via this mechanism? ( c. Bacterium Y is photosynthetic. You want to decrease the ability of Bacterium Y to produce glucose through photosynthesis. Explain how you could manipulate the light reactions of photosynthesis to decrease glucose production during the dark reactions in Bacterium Y. Include the name of the pathway that makes glucose during the dark reactions, which/how molecules from the light reactions are used in this pathway, and what specific steps of this pathway would be affected by your manipulations.

What of the following describes an antiprot carrier Both molecules move through at the same time in the same direction  Carrier two solutes in opposite direction  Carries one type solute Exemplified via facilitated diffusion  Carries molecules both ways but only one at a time

State the source of energy that powers flagellar motility

D. OSMOSIS WITH LIVING PLANT CELLS C. a. Procedure This experiment is designed to demonstrate the principles of osmosis with living plant tissues. Using a corkborer, bore two equal-sized cylinders of freshly cut raw potato. Feel them and note the degree of firmness. Place one potato piece in a culture dish containing enough five percent salt solution to cover the potato completely. Place the second potato piece in a culture dish containing the same amount of distilled water. After about 20 minutes, examine both pieces of potato and note any changes in their degree of firmness. b. Results SOLUTION AROUND POTATO 5% Salt Distilled water doesn't Molle 78 FIRMNESS OF POTATO AFTER 20 MINUTES soggy Firm Questions 1. Give an explanation for your results with the 5% salt solution.