Exam 32: Plant Nutrition and Transport

Carnivorous plants are more likely to grow in acid bogs because

Most plants can absorb and use which of the following forms of nitrogen directly?

A small seed may grow into a very large tree. As the tree grows, it adds a great deal of mass. Where does most of this mass come from?

-What is true of the guard cells shown in the right-hand panel of this figure?

What is the physical barrier in the root that regulates the flow of water to xylem via cell walls?