Module 4: Different Cell Types of Plant and Animal Tissues Flashcards
1
Q
PLANT CELLS
A
- regulates water cycle & carbon of the biosphere
- unique organelles: cell wall, cholorplast, & vacuole
2
Q
TWO STRUCTURAL SYSTEMS OF PLANT CELLS
A
- shoot system
- root system
3
Q
SHOOT SYSTEM
(plant cell)
A
- structures ABOVE the ground
- leaves, flowers, stems, & fruits
4
Q
ROOT SYSTEM
(plant cell)
A
- structures BELOW the ground
- origin of plants
- roots, tubers, & rhizobial structure
5
Q
PLANT TISSUES
A
- dermal
- ground
- vascular
6
Q
DERMAL TISSUE
A
- plant cell
- form the outer protecting covering of plants
- epidermis
7
Q
EPIDERMIS
A
- plant cell
- dermal tissue
- outermost layer found in all young plants
- contains closely packed cells with cuticle
- responsible in minimizing water loss and protecting cell from bacterias etc.
8
Q
ROOTS
(epidermis)
A
- epidermal cells
- long and slender projections
- root hairs - increase the surface area for absorption
9
Q
STEM
(epidermis)
A
- produce hair called TRICHOMAS
- protects plant from too much sunlight & conserve moisture
10
Q
LEAVES
(epidermis)
A
- lower epidermis contains specialized cells called guard cells
11
Q
GUARD CELLS
A
- leaves
- epidermis
- contain chloroplasts & pores called STOMATA
- gas exchanges occurs in stomata
12
Q
STOMATA
A
- epidermis
- leaves
- GAS EXCHANGE OCCURS
13
Q
GROUND TISSUE
A
- plant cell
- fills up the inner part of the plant
- parenchyma, collenchyma, & scelerenchyma
14
Q
PARENCHYMA
A
- plant cell
- ground tissue
- most abundant
- big & thin-walled cells with large vacuole & air spaces
- contribute mainly to penetration of light and regulation of gas exchange
15
Q
COLLENCHYMA
A
- plant cell
- ground tissue
- supports IMMATURE regions
- thick-walled cells with uneven thickness
- smaller than parenchyma
16
Q
SCLERENCHYMA
A
- plant cell
- ground tissue
- supports MATURE regions
- thick cell walls impregnated with lignins with high resistance substance that makes the cell tough & hard
- mostly DEAD WHEN IT REACHES MATURITY AGE
- two types:
fibers - long & slender
sclerids - shorter, vary in shape
- found in seeds of fruits and nutshell - aka STONE CELL
17
Q
VASCULAR TISSUE
A
- plant cell
- transports water & nutrients in the plant
- xylem
- phloem
18
Q
XYLEM
A
- transports water and minerals
- two types of conducting cells:
tracheid - elongated cells - oblique & tapering end walls
vessel element - long tubes - open at each end & joined end to end to form tubes - both conducting cells are hollow & NON-LIVING
19
Q
PHLOEM
A
- transports sucrose & other organic compounds
- composed of seive tube elements - have a cytoplasm but does not have nucleus
20
Q
TYPES OF TISSUES
(animal cells)
A
- epithelial tissues
- connective tissue
- nervous tissue
- muscular tissues
21
Q
EPITHELIAL TISSUES
A
- tightly packed cells that form continuous layers
- covers body surface
- lines cavities from glands
- functions: secretion, absorption, excretion, filtration