Exam 36: Plant Form and Function

Imagine that you bought three identical young tomato plants.One you put to grow in the sunny location in a tranquil part of your garden,one on the windy and sunny hill nearby,and one in the shady part of the garden.How will these plants look in two months' time?

You find a plant unfamiliar to you and observe that it has vascular bundles scattered throughout the stem cross section.What do you conclude about the plant?

Monocot vascular bundles do not have a vascular cambium between the xylem and phloem.This means that _____.

Apical meristems of dicots are at the tips of stems.Apical meristems of grasses are at ground level or slightly below,concealed by the leaves.The leaves also have an intercalary meristem at their bases.What does this mean when considering care of a lawn or soccer field?

For each of the structures indicated on the diagram of a cross section of a plant leaf (below),indicate the function from the following list,for which it is most likely an adaptation to life on land. A)absorption of CO₂ B)retention of water C)evaporation of water D)collection of light E)release of CO₂ 1)Structure X 2)Structure Y 3)Structure Z

Where are the youngest wood and the youngest bark in a tree trunk?

When comparing root systems of plants growing on a square foot in a cornfield and on a meadow,what result do you expect to receive?

In 2005,a spot 1 centimeter from the center of a woody stem is in the bark.In what tissue will the same spot (1 cm from the center)be in 2050?

The main source of water necessary for photosynthesis to occur in the leaf mesophyll is _____.

What is not a function of modified leaves?

The center of many stems contains only parenchyma cells;it is therefore best called a _____.

Which of these is not an example of a parenchyma cell?

In a meristematic region,the cell plate during mitosis is perpendicular to the side of the stem.In what direction will the stem grow?

Plant leaf epidermal cells have an amazing array of trichomes.What is not a function of trichomes?

Girdling is a procedure to kill unwanted tress by cutting a groove into the bark of the tree.The groove must completely encircle the trunk and should penetrate into the wood to a depth of at least 1/2 inch on small trees,and 1 to 1-1/2 inches on larger trees.Why does this procedure cause tree death?

The surface area of a plant's root system is substantially larger than the surface area of its shoot system.Which hypothesis best explains the extensive surface area of roots?

Leaf thickness represents a trade-off between _____.

Root hairs on a root develop _____.

What best describes the shape of the entire vascular cambium system in trees? Visualizing a pine tree helps with this question.