Problem 1
Ground tissue consists mainly of __________ a. pith b. the walls of dead cells c. parenchyma cells d. cork but not bark
Problem 2
Which of the following cell types remain alive in mature tissue? a. sclerenchyma b. tracheids c. sieve elements d. vessel elements
Problem 3
Epidermis and periderm are ________ tissues. a. ground b. vascular c. dermal d. mesoderm
Problem 5
A vascular bundle in a leaf is called _____________ a. a vascular cylinder b. mesophyll c. a vein d. vascular cambium
Problem 7
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
Problem 8
When guard cells swell, __________ a. transpiration ceases b. sugars enter phloem c. stomata open d. root cells die
Problem 9
Water transport from roots to leaves occurs by __________ a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. transpiration, tension, and cohesion of water
Problem 10
Sugar transport from leaves to roots occurs by ____________ a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. transpiration, tension, and cohesion of water
Problem 11
Roots and shoots lengthen through activity at____________ a. apical meristems b. lateral meristems c. vascular cambium d. cork cambium
Problem 12
The activity of lateral meristems ___________ older roots and stems. a. lengthens b. thickens c. both a and b d. has no effect on
