Below is a metabolic pathway having 3 chemical reactions and 3 enzymes. Enzyme 1 (E1) has 2 binding sites: 1 for the substrate A and another for the end product D. As the pathway proceeds, a large amount of end product will react with enzyme 1, blocking the enzyme’s binding to substrate A. Which statement is true about this pathway?                      E1        E2         E3         Substrate A —-> B —-> C —-> D end product

You’re growing cells in a test tube in the lab, which produce a growth curve that looks like the graph above.  Indicate the name of the phase corresponding to each number shown in the bacterial growth curve. (2 points) Briefly describe what is happening to the cells in each phase. (2 points)

You’re having a conversation with a child in fourth grade about their science class. They are really excited to be learning about cells. They tell you the cell is like a city and the organelles called mitochondria are like a power plant, because they produce a lot of energy. You start thinking about energy production in different types of microbial cells (since you think about microbiology a lot due to this awesome class you’re taking). Since bacterial cells don’t have mitochondria, how do they produce energy??  Can aerobic bacteria still use the process of aerobic cellular respiration? (1 point) List the three major steps to aerobic cellular respiration. (1.5 points) List the locations in the cell for each of these processes in prokaryotes vs. eukaryotes. (1.5 points)

Which of the following hormones have anti-inflammatory effect?

This layer is shed during menses:

Given these cells: 1. primary spermatocytes2. secondary spermatocytes3. spermatids4. spermatogonia5. sperm cells

This hormone is not a hormone that is secreted into the hypothalamohypophyseal portal (vascular connection) system:

This symptom is not a result of hyperthyroidism:

Which of the following glands are responsible for producing 60-70% of semen volume?

All of the following are part of the spermatic cord EXCEPT this: