During photosynthesis, the primary function of chlorophyll is to ___________.

Above are five images of a plant cell going through mitosis. Put the events in order from the start of mitosis to the end. Cell [a] is in prophase. Cell [b] is in metaphase.

Different types of antibiotics are used to treat bacterial infections.  An antibiotic that binds to bacterial ribosomes would directly affect [b]. An antibiotic that prevents cross-linkages between peptidoglycan strands would directly affect [a].

Cells start off containing normal (non-radiolabeled) thymine (T). They are allowed to go through one round of replication with only radiolabeled T available to make DNA. We would expect that _____.

Which of the following correctly states a difference between prokaryotic and eukaryotic cells?

In the first unit, we studied biological molecules. In this unit, we looked at how cells build and break down those molecules. Identify the organelle that carries out the function stated.

PFK is an enzyme that catalyzes a reaction early in glycolysis. When it catalyzes the reaction, it causes glycolysis to proceed. If the reaction is not catalyzed, the sugar is instead directed to pathways that convert the sugar to forms of energy that can be stored. PFK’s activity is regulated by cAMP. cAMP is present in cells when ATP levels are low. cAMP can bind to PFK and allosterically regulate its activity.  In order for a cell to maintain appropriate levels of ATP production, cAMP binding to PFK should cause the activity of PFK to ______.

Below is a diagram of a DNA molecule that is early in the process of replication.  The bottom strand is the original; the top shows the start of the new DNA strand. On the newly synthesized strand, the # represents the [a] end of the new DNA. The next nucleotide added to the DNA being synthesized would be [b]. The enzyme that adds a DNA nucleotide to an elongating strand of DNA is [c].

The carbon that makes up a plant’s biological molecules comes primarily from ________.

The Calvin cycle uses energy from the light reactions. What products of the light reaction provide energy to the Calvin cycle? Choose all correct answers.