Figure 10 below represents a cross-sectional view of onion cells under the microscope, similar to what we were able to observe in our Cell Cycle Lab activity. What phase of the cell cycle is cell sample 2 likely in?

What is the name of the outermost layer of a gastrula?  

Figure 5 below depicts a cross section of an organelle responsible for photosynthesis. What is Structure 4 in Figure 5?

What is the name of the innermost layer of a gastrula?  

Which of the following are the REACTANTS in aerobic cellular respiration?

In reference to Figure 3, what is the BEST benefit to oxygen (O2) in the electron transport chain?  

The membrane of the thylakoid is shown below in Figure 2 in the image. What is energizing the electrons as they move across the photosynthetic electron transport chain?  

Some bacteria can perform photosynthesis.

The image below is an organelle that performs photosynthesis. Which of the following molecules is a reactant in the light dependent reactions? (Hint: it comes into the thylakoids and is split to begin the light dependent reactions. This is Molecule 1 in Figure 1).

Figure 5 below depicts a cross section of an organelle responsible for photosynthesis. What is Structure 2 in Figure 5?