Exam 33: Plant Form and Function

__________________ cells provide support for plant organs in which secondary growth has not yet occurred and are alive at maturity.

You cut down a tree and count 23 annual rings in the trunk.You conclude that the tree is:

Within the epidermis of leaves are ______________ through which gases,such as carbon dioxide and oxygen,pass.

________________ occur on root cells near root tips to help take up water and nutrients from the soil.

Describe the mechanism in which stomata open and close.

In a mature tree,the point where the bark can be peeled off the wood is where the ________________ lies.

The only function of meristems is:

Of the nutrients needed for plant growth,active uptake of __________ regulates turgor pressure within cells of leaves.

Which of the following cells is living but their nuclei are lost during maturation?

Which of the following form the gritty texture you feel in the flesh of pears?

The ______________ of materials moved through the phloem occurs because of water pressure.

The ___________ is a type of vascular tissue that conducts water.

The two leaflike organs which may flank the base of the petiole where it joins the stem are called:

____________ are outgrowths of the epidermis that occur on the shoot.

__________________ cells lack cytoplasm at maturity,are tough and thick-walled,and serve to strengthen tissues.

Which type of vascular tissue conducts carbohydrates?

In some plants,roots may arise along the stem.These are called ________________.

Branch roots arise from the:

Specialized parenchyma cells,known as ________________ cells,occur along with sieve-tube members.

Leaf blades grow larger as a result of cell division in the: