Chapter 5

Question 1

all plant cells belong to just three classes based on the nature of their cell wall, namely:

Answer 1

parenchyma, collenchyma, and sclerenchyma

Question 2

this plant cell have only thin primary walls

Answer 2

parenchyma

Question 3

characterized to be active metabolically, and most remain alive after they mature

Answer 3

parenchyma

Question 4

what are the special types of parenchyma?

Answer 4

chlorenchyma, glandular cells, transfer cells, and phloem

Question 5

these are photosynthetic parenchyma cells

Answer 5

chlorenchyma cells

Question 6

their thin walls allow light and carbon dioxide to pass through the chloroplast

Answer 6

chlorenchyma

Question 7

aka pigmented cells

Answer 7

parenchyma

because its thin walls allow pigments to be seen

Question 8

what do the glandular cells secrete?

Answer 8

nectar, fragrances, mucilage, resins, and oils

Question 9

these mediate short-distance transport of material

Answer 9

transfer cells

Question 10

they have a large, extensive plasma membrane with numerous molecular pumps

Answer 10

transfer cells

Question 11

a parenchyma tissue that conducts nutrients over long distances

Answer 11

phloem

Question 12

these plant cells are inexpensive, metabolically and structurally

Answer 12

parenchyma

Question 13

have a thin primary wall that becomes thickened in other areas; allows plasticity

Answer 13

collenchyma cells

Question 14

where do collenchymas found?

Answer 14

beneath the epidermis, supporting vascular bundles

Question 15

has a primary wall and a thick secondary wall that is usually lignified; elastic walls

Answer 15

sclerenchyma

Question 16

this plant cell supports a plant by its strength

Answer 16

sclerenchyma

Question 17

sclerenchyma has two types, namely:

Answer 17

conductive and mechanical

Question 18

this type of sclerenchyma have long and flexible fibers

Answer 18

mechanical sclerenchyma

Question 19

its sclereids are short, isodiametric (cuboidal), inflexible, and brittle

Answer 19

mechanical sclerenchyma

Question 20

a pair of pits in the cell walls of adjacent plant cells that are opposite each other; two pits are called?

Answer 20

pit-pairs

Question 21

this type of sclerenchyma transports water; tracheary elements of the xylem

Answer 21

conducting sclerenchyma