PMA Review Unit 2.3: How do Plants function in the environment?

Which of the following tissues is most clearly associated with rapid cellular division?

• Meristematic

• Vascular

• Dermal

• Epidermal

Which statement describes the role of flowers in plant survival?

• Flowers can absorb carbon dioxide for sugar production.

• Flowers produce oxygen through cellular respiration.

• Flowers contain cells that carry out photosynthesis.

• Flowers contain cells that produce gametes.

The diagram below represents a flower, the reproductive structure of some plants. Most flowers have both male and female structures for fertilization and reproduction. Which structure is represented by the letter A in the diagram above?

• the stamen, a male structure which produces pollen

• the pistil, a female structure which collects pollen and passes it to the ovary

• the sepal, a modified leaf used for protection of the flower

• the petals, decorative structures which attract pollinators

The image below shows a plant that has one stem wrapped in plastic. You can see the condensation of water on the inside of the plastic bag. Which of the following best explain the process required for the bag to accrue condensation?

• Transpiration from the root to the leaves via the xylem.

• Photosynthesis from the leaves via the stomata.

• Cellular respiration through the stems.

• Cellular division within the dermal tissue.

Terrestrial plants have stomata on the surface of their leaves. A single stoma is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in the plant?

• Water enters the plant through the surface of the leaf for transpiration.

• Gases for photosynthesis are exchanged through the surface of the leaf.

• Micronutrients are taken in through the microscopic stoma

• Energy for cellular reproduction is absorbed through the surface of the leaf.

Which statement is true when discussing aerobic and anaerobic respiration?

• Aerobic uses oxygen and produces less ATP than anaerobic.

• Aerobic does not use oxygen and produces less ATP than anaerobic.

• Aerobic uses oxygen and produces more ATP than anaerobic.

• Aerobic does not use oxygen and produces more ATP than anaerobic.

Which choice below correctly identifies the molecules at points A, B, and C?

• A - Glucose and ATP; B - Oxygen and water; C - Heat

• A - Carbon Dioxide and Oxygen; B - Water and ATP ; C - Heat

• A - Carbon dioxide and water; B - Glucose and Oxygen; C - ATP

• A - Glucose and Oxygen; B - Carbon dioxide and water; C - Water Vapor

Which of the following is a reactant of photosynthesis?

• energy

• oxygen

• glucose

• carbon dioxide

A potted plant is placed inside a clear, sealed vacuum container that has water pumped into it on a regular basis. The container is placed in direct sun and the plant's growth is monitored. Which statement best describes what will most likely happen to the plant over time?

• The plant will die because it does not have oxygen for photosynthesis.

• The plant will grow faster because it is able to perform aerobic respiration.

• The plant will die because it does not have carbon dioxide for photosynthesis.

• The plant will grow at a slower rate because it requires more water for aerobic respiration.

You have been growing some animal cells in culture. The cells grow well for several weeks, and then their growth slows down. You conduct some tests and determine that there is a lot of lactic acid in the culture fluid. Which of the following is the most likely explanation for the poor growth of the cells?

• There is too much glucose in the culture fluid.

• There is not enough glucose in the culture fluid

• There is too much oxygen in the culture fluid.

• There is not enough oxygen in the culture fluid.