Chapter 32

Plants that complete their life cycles in 1 year are called ____________; those that complete them in 2 years are _____________; and those that live year after year are ____________ ; (a) annuals; perennials; biennials (b) biennials; annuals; perennials (c) annuals; biennials; perennials (d) perennials; annuals; biennials (e) perennials; biennials; annuals

Which of the following plant life history strategies would be successful in a relatively favorable environment such as a tropical rain forest? (a) long life span with flowers and seeds produced each year (b) long life span with flowers and seeds produced only when the plant is very young (c) short life span with flowers and seeds produced each year (d) short life span with flowers and seeds produced only when the plant is very young (e) very short life span with flowering at end of life

Most of the plant body consists of the _____________ tissue system. (a) ground (b) vascular (c) periderm (d) dermal (e) cortex

The cell walls of parenchyma cells (a) contain large quantities of pectin in the thickened corners (b) are rich in lignin but do not contain hemicelluloses and pectin (c) are predominantly cellulose, although they also contain hemicelluloses and pectin (d) contain cellulose, hemicelluloses, and lignin in approximately equal amounts (e) contain hemicelluloses, pectin, and lignin but no cellulose

Which tissue system provides a covering for the plant body? (a) ground (b) vascular (c) periderm (d) dermal (e) cortex

Storage, secretion, and photosynthesis are the functions of (a) collenchyma (b) vessel elements (c) lateral meristems (d) sclerenchyma (e) parenchyma

The two simple tissues that are specialized for support are (a) parenchyma and collenchyma (b) collenchyma and sclerenchyma (c) sclerenchyma and parenchyma (d) parenchyma and xylem (e) xylem and phloem

Sclereids and fibers are examples of which plant tissue? (a) parenchyma (b) collenchyma (c) sclerenchyma (d) xylem (e) epidermis

Which of the following statements about the vascular tissue system is not true? (a) xylem and phloem are continuous throughout the plant body (b) xylem not only conducts water and dissolved minerals but also provides support (c) four cell types occur in phloem: sieve tube elements, companion cells, tracheids, and vessel elements (d) sieve tube elements lack nuclei (e) vessel elements are hollow, and their end walls have perforations or are entirely dissolved away

Conduction of water and minerals in xylem occurs in vessel elements and (a) sieve tube elements (b) tracheids (c) collenchyma (d) cork cells (e) phloem

Conduction of sugar in solution in the sieve tube elements is aided by (a) cork cells (b) sclerenchyma (c) parenchyma (d) guard cells (e) companion cells

The outer tissue that covers plants with primary growth is _____________ whereas ____________covers plants with secondary growth. (a) cuticle; cork parenchyma (b) periderm; phloem (c) epidermis; periderm (d) epidermis; collenchyma (e) cellulose; lignin

The noncellular waxy layer secreted by the epidermis over its aerial surface is called (a) lignin (b) cuticle (c) periderm (d) cellulose (e) trichome

Minute pores known as ___________ dot the surface of the epidermis of leaves and stems; each pore is bordered by two __________ (a) stomata; guard cells (b) stomata; fibers (c) sieve tube elements; companion cells (d) sclereids; guard cells (e) cuticle; guard cells

Localized areas within the plant body where cell divisions occur are known as (a) organs (b) fibers (c) meristems (d) cork parenchyma (e) stomata

Primary growth, an increase in the length of a plant, occurs at the (a) cork cambium (b) apical meristem (c) vascular cambium (d) lateral meristem (e) periderm

The two lateral meristems responsible for secondary growth are the (a) cork cambium and apical meristem (b) apical meristem and cork parenchyma (c) vascular cambium and apical meristem (d) vascular cambium and cork cambium (e) cork cambium and cork parenchyma