Chapter 25

In plants, fibers are a type of________ cell. a. parenchyma b. sclerenchyma c. collenchyma d. mesophyll

All plant growth arises from ________. a. parenchyma b. sclerenchyma c. collenchyma d. mesophyll

Which of the following cell types remain alive in mature plant tissue? a. sclerenchyma b. sieve elements c. tracheids d. vessel elements

All of the vascular bundles inside a typical________ arranged in a ring. a. monocot stem b. eudicot stem c. monocot root d. eudicot root

Epidermis and periderm are________ tissues. a. ground b. vascular c. dermal

A vascular bundle in a leaf is called ________. a. a vascular cylinder b. mesophyll c. a vein d. vascular cambium

Typically, vascular tissue is organized as ________in stems and as________ in roots. a. multiple vascular bundles; one vascular cylinder b. one vascular bundle; multiple vascular cylinders c. one vascular cylinder; multiple vascular bundles d. multiple vascular cylinders; one vascular bundle

Is an onion a root or a stem?

\(\operatorname{In} a(n)\) ________ ,the primary root is typically the largest. a. lateral meristem b. adventitious root system c. fibrous root system d. taproot system

Root hairs________. a. conduct water from cortex to aboveground shoots b. increase the root's surface area for absorption c. anchor the plant in soil

Roots and shoots lengthen through activity at________. a. apical meristems b. lateral meristems c. the vascular cambium d. the cork cambium

The activity of lateral meristems________ older roots and stems. a. lengthens b. thickens c. ages

Tree rings occur________. a. when there are droughts during the time the rings form b. where environmental conditions influence xylem cell size c. if heartwood alternates with sapwood d. as epidermis replaces periderm

Match the plant parts with the best description. ________vascular cambium ________mesophyll ________wood ________cortex ________potato ________cotyledons ________stomata a. ground tissue b. modified stem structure c. a lateral meristem d. photosynthetic parenchyma e. mass of secondary xylem f. in epidermis g. only one in a monocot seed