Gen Bio Quiz 2 (Plant Tissues) Flashcards
A group of cells of the same type or of the mixed type, having a common origin and performing an identical function.
Plant tissues
have cells which are continuously dividing
Meristematic Tissue
What are the 3 types of meristematic tissue based on origin?
- Promeristem
- Primary meristem
- Secondary meristem
What are the 3 types of meristematic tissue based on the location?
- Apical meristem
- Intercalary meristem
- Lateral meristem
What are the 3 types of meristematic tissue based on the function?
- Protoderm
- Procambium
- Ground meristem
The youngest stage of the growing organ that gives rise to primary meristem
Promeristem
Embryonic tissues that gives rise epidermis, the cortex, the leaves, and the pith.
Primary Meristem
It develops later from non-meristematic tissues at a certain stage of development of an organ of a plant.
Secondary Meristem
The area of actively dividing cells that locates at the tips of the roots and the shoots.
Apical Meristem
The area of actively dividing cells that locates at the internodes.
Intercalary Meristem
The area of actively dividing cells that locates at the lateral side of the stem and the root.
Lateral Meristem
It aids increase of height of the plant by facilitating the growth of the shoot and the root
Apical Meristem
It contributes to the increase in height, with the growth of the internodes.
Intercalary Meristem
It increases the thickness of the plant by increasing the diameter of the plant
Lateral Meristem
The outermost plant tissue and forms the epidermis
Protoderm
It is located around the outside of the stem and protects the plants from any mechanical shocks.
Protoderm
innermost tissue and gives rise to the xylem and phloem
Procambium
cells are large with thick walls and it gives rise to ground tissue
ground meristem
composed of cells that have lost the power of division, having attained their definite form and sizes
Permanent Tissue
It covers the plant and can be found on the outer layer of roots, stems, and leaves
Epidermis
The functions of this tissue are transpiration, gas exchange, and defense.
Dermal Tissue
It functions as the first line of defense for the plant, protecting it from fire or heat injury, dehydration, freezing conditions, and/or disease.
Periderm
A simple permanent tissue that is made of only one type of cells
Ground tissue
What are the 3 types of ground tissue?
- Parenchyma
- Collenchyma
- Sclerenchyma
It performs photosynthesis, storage, and secretion.
Parenchyma
It performs photosynthesis when chloroplasts are present
Collenchyma
It provides mechanical support
Collenchyma
Its walls are lignifies with pits (lumen)
sclerenchyma
parenchymatous tissue that contains chloroplasts and chlorophyll
Chlorenchyma
parenchyma tissue with large air spaces between cells
Aerenchyma
elongated cells that have thicker primary walls and help support young parts of the plant shoot
collenchyma
It provides flexible support without restraining growth. At maturity, these cells are living and flexible, elongating with the stems and leaves they support
collenchyma
supporting elements in the plant but are much more rigid than collenchyma cells.
Sclerenchyma
It contains large amounts of lignin, a relatively indigestible strengthening polymer that accounts for more than a quarter of the dry mass of wood
Sclerenchyma
What are the 2 types of Sclerenchyma?
Fiber and sclereids
It transports water, minerals, and sugars
Vascular Tissue
It performs conduction of water and mineral salts from the roots to the top of plants
Xylem
What are the 2 types of cells of xylem?
Tracheid and Vessels
a long and tapered ends
which conducts water and provides mechanical support
tracheids
wider, shorter, thinner walled, less tapered, aligned end to end, perforation plates, walls lignified
vessels
have perforation plates that enable water to flow freely through the vessels
vessels
It transports food products from green parts to the storage organs and to other organs of plants
Phloem
also called as bast or lepton
Phloem
What are the 2 elements of Phloem?
- Sieve tube elements
- Companion cells
An element of phloem that is used for the longitudinal transmission of food.
Sieve tube elements
An element of phloem that help load sugars into the sieve-tube elements, which then transport the sugars to other parts of the plant.
Companion cells
