HB Unit 5 Exam 2021

Last updated almost 5 years ago
30 questions
1

Which of the following best describes how oxygen gas is produced during photosynthesis?

1

Which of the following statements best explains how the energy in a photon of light is stored in a molecule of the sugar G3P?

1

Chemiosmosis in chloroplasts involves which of the following processes?

1

Use the figure and the compounds labeled A, B, C, D, and E to answer the following question.
Which best describes where the ATP for Phase 3 most likely comes from?

1

What is the primary function of the Calvin cycle?

1

An early step in the process of carbon fixation combines three molecules of CO2 with three molecules of RuBP to produce three 6-carbon molecules, which are immediately converted to six 3-carbon molecules. These six molecules are phosphorylated and reduced to produce glyceraldehyde 3-phosphate (G3P). What additional events occur to complete the Calvin cycle?

1

The figure shows the absorption spectrum for chlorophyll a and the action spectrum for photosynthesis. What colors of light are least effective would not be used for photosynthesis?

1

Leo hikes in the woods. He finds a pine cone on the bike trail. What can Leo conclude about the type of plant that produced the cone?

1

Which of the following is not a type of vascular plant?

1

Bryophytes are_________________plant.

1

What classification do these orquids belong to?

1

The visible spectrum is from just under 400 nm to just over 700 nm. What type of waves would have wavelengths longer than 700 nm?

1

#8 is collectively known as ___________________________. It is where most of the photosynthetic activity takes place.

1

The role of the part labeled #1 is

1

This is an image of a chloroplast. What is #6 pointing to?

1

Above is an image of a thylakoid. A and C are the photosystems, as shown by the green pigments on their surface. E is where hydrogen ions DIFFUSE down their gradient. E is therefore the

1

When NADPH becomes NADP+, the energy released is provided to the molecules of the Calvin Cycle to power the reactions there. It would be most appropriate to say that

1

What accurately describes the flow of the H+ from water?

1

Which part would be considered a female part of the flower? Choose all that apply

1

In which part of the flower would you find a male gamete? Give the most specific answer.

1

Which part of the flower would eventually become a fruit?

1

The oxygen atoms that end up in G3P or other glucose derivitives came from which molecule?

1

Which statements best describes why plants perform both cyclic and noncyclic photophosporylation

1

In the vascular bundle of a plant you would find specialized ______ cells for water transport and specialized ________ cells for sugar transport.

1

Photosynthesizes have evolved to have more than one type of pigment molecule. Why was this an advantage for?

4

In your own words, describe why this flower shown here is seen as red. Use all appropriate vocabulary.

4

Describe one possible reason that you learned in class as to why there are such brilliant colors in the fall foliage. Be specific and use all appropriate vocabulary.

6

Rubisco is an important enzyme in photosynthesis. In your own words, describe
- WHERE it is
- WHAT it does
- what its SUBSTRATE and PRODUCTS would be

6

The rate of photosynthesis varies as factors such as temperature, light intensity and carbon dioxide levels change.
1. Explain why higher temperatures do not always translate into highest rates of oxygen production - 2 pts
2. The graph below represents the rate of photosynthesis as temperature increases, at both high light intensity and low light intensity. According to the data provided, within THIS temperature range shown here, which appears to have a more limiting effect on the rate of photosynthesis - light or temperature? EXPLAIN your answer using data/trends from the graph to justify your answer. - 4 pts

5

Some flowers self-pollinate, and some cross-pollinate. Define each. What is the benefit to the plant of cross-pollination?