Exam Two Bio

Blood sugar is regulated by two hormones released from the pancreas. These hormones, insulin and glucagon, have antagonistic expression. Which of the following is true about insulin and glucagon?

Suppose you are a Calcium ion in the soil and the plant nearby depends on you for some of its signal transduction properties. After hanging around in the soil for a while, you want to find your way into the xylem of the plant. Upon encountering the root hair, you stumble upon a lot of cellulose and migrate along what seems like an easy route to the xylem until you encounter this impenetrable obstacle. Which choice below describes this scenario best?

Probably the most significant drawback to GMO's is...

Mutant plants have been isolated whose embryo sacs develop without polar nuclei. What would be the consequences of this mutation?

Fruits are ovaries

This simplified figure of circles inside circles represents...

Of the layers of cells listed in the figure, which are INCORRECTLY matched with their corresponding tissue type?

In general, plants don't get metastatic (means that it spreads) cancer because the cells do not move around. However, plants can get large tumors that resemble cancer. knowing what you know about how cancer works, which cell layer, if "cancerous" would grow a tumor fastest?

We discussed several mechanisms of negative and positive feedback during this unit. Which of the following are correctly matched?

Your evil roommate hates the color green and decides to paint all of the leaves of your plant with a black paint that doesn't allow light through, What type of cell is primarily affected?

A plant seed...

This anterior pituitary hormone promotes growth of bone, muscles and tissues

water pulled into the plant from a root cell could be found in which parts of the plant

In which compartment would you find active photosynthesis happening?

The weather outside over the past week has been dry and sunny, but the owner of the sunflower in the figure above is making sure to water the flower daily. Which of the following would be true under these conditions?

This annoying kid in your chem lab says he is going to solve the problem of world hunger by eliminating bacteria in the soil so that plants will be healthier. What is/are the problem(s) with that statement?

You are taking care of your crazy botanist neighbor's mutated plant over the weekend. You notice that this plant is oddly flexible and lacks the rigid support that you observe in other plants. Which plant cell type might be low functioning or not functioning at all in this mutant plant?

A molecule of oxytocin is circulating around in your blood stream. You receive flowers from your mom for Valentine's Day (although a week late, c'mon mom). How does that oxytocin know to travel to your brain and create the love/bonding feeling that you get when you receive your flowers?

Which of the plant cell types below would you not find in vascular tissue?

Which of the plant cell types below would you not find in vascular tissue?

Which of the following represent (an) accurate role(s) of H+ in plant biology?

You insist to your roommate that while the weather is cold, you should go build a snowman in the center of campus. How does your body work to keep you warm while you are building Olaf the snowman?

a population of self-fertlizing plants is out competing a population of non self-fertilizing plants in a given habitat, until a parasite invades the area, and after only a few years, only the non- self fertilizing plants are still present. The best explanation for this would be

Under what conditions would stomata be closed?

Pollination...

Auxin and phytochrome resemble each other in that...

In leaf abscission, some plant cells are undergoing apoptosis so that the leaf can fall out at the right spot and at the right time. The hormone governing this apoptosis is...

You are a plant cell in the root and recently spent some time elongating, very likely via auxin signaling. What's next for you?

The plant embryo...

You are observing an unknown animal species in the Amazon rain forest and want to know whether it is an ectotherm or an endotherm. Which of the following methods would be the least helpful in making this determination?

What is one way that primary growth in shoots is disrupted?

Which of the following is an example of Homeostasis?

Double fertilization in plants is an evolutionary advantage because it

Dwight Schrute (and any plant biology text) would tell you that ____ is the most important inorganic nutrient for plants

We discussed one positive impact of GMO's is the the ability to engineer food that can address world hunger and malnutrition. One such example was Golden rice, which is rice fortified with __________ to prevent childhood blindness.

Plants respond to cold stress y altering their plasma membranes. Specifically, how is this done?

The diagram on the left descries a molecular switching mechanism. Which is true about the Pf to Pfr interconversion?

You leave for the weekend and have your best friend water your plants for you. Its the weekend and your friend is only mildly responsible, so upon your return, he confesses to you that he accidentally watered your plants with lemon lime Gatorade (it was left over mixer from National Marquette Day). Your plant is stressed out but still alive. What probably happened as a result of the gatorade watering event?

Where does meiosis occur in a flowering plant?

You are working with an angiosperm in the lab that periodically grows to have no petals but normal sepals, stamens and carpels. What might be going on?

In which of the four flower organs listed in the diagram above would you find the female gametophyte (at any time during an angiosperm life cycle)?