Exam 4: Plant Physiology

As transpiration occurs in the leaf,it creates a cohesive pull on the whole water column downward through the xylem to the root,where water uptake occurs to replace the water lost through transpiration.

The loss of water vapor from a leaf is known as translocation.

Which of the following statements is correct?

The ultimate source of electrons in the light reactions of photosynthesis is which of the following?

For each of the following, indicate during which stage or stages of photosynthesis it occurs (i.e., Photosystem I, Photosystem II, and/or Calvin cycle). -O₂ given off during ________.

The first stable product of the Calvin Cycle is a ________ molecule.

The intercellular pathway of water movement from the soil to the xylem of the root is the ________ pathway.

For each of the following, indicate during which stage or stages of photosynthesis it occurs (i.e., Photosystem I, Photosystem II, and/or Calvin cycle). -Fixation of carbon dioxide during the ________.

Visible light is a form of ________ radiation.

What is the name given to plants that can concentrate minerals at levels 100 times more than normal?

Which of the following statements is correct?

Which of the following statements is not correct?

Your tomato plants are stunted,older leaves are dark green,and there are patches of deep red pigmentation on the stems and leaves.Your tomato plant is likely suffering from ________ deficiency.

Regarding translocation,which of the following tissues serves as a sink?

What is the role of oxygen in aerobic cellular respiration?

Which of the following statements is correct?

The hypothesis currently accepted to explain translocation in the phloem is the Pressure Flow Hypothesis.

The Second Law of Thermodynamics states which of the following?

Which one of the following regulates the movement of water and minerals into the stele?

What structure of the guard cells allows them to expand outward instead of spherically when inflated with water?