Plant Anatomy - Tissues and Organs Flashcards
What is plant tissues?
composed of cells
plant cells have?
- plastids
- vacuoles
- cellulose cell wall
3 basic types of plant cells?
- parenchyma cells –> typical plant cell
- collenchyma cells
- sclerenchyma cells
what is the common “typical” cells?
parenchyma cells
Have thin primary-wall?
True or False
True
Are parenchyma cells metabolically active?
True or False
True
Does parenchyma cells remain alive after maturity?
True or False
True
does parenchyma contain pigments for photosynthesis?
True or False
True
What can parenchyma sense?
environmental conditions
- gravity, water, nutrients
What does parenchyma store?
- sugars/starches
- lipids/ oils
- chemicals –> fragrance, mucilage, nectar, resins
Which cell has the thin primary cell wall?
collenchyma cells
Which cell thickens as the cell matures?
collenchyma cells
what does collenchyma provide?
flexible (elastic) support in growing plant parts
where does collenchyma cells occur?
beneath epidermis
what support does collenchyma cells provide?
vascular bundles in stems and roots
Which cell has a thick secondary cell wall?
sclerenchyma cells
what does sclerenchyma cells provide?
support and strength for vertical organs
(roots and stems)
what happens when sclerenchyma cells are mature?
dead
what does sclerenchyma cells form?
form fibers, sclereids
What are fibers?
- primary tissues of roots and stems
- elongate cells with thick lignified walls
What are sclereids?
cells found in fruits/nuts/seeds
what can cell types form?
simple tissues
complex tissues
What are simple tissue composed of?
1 cell type
What does the simple tissue form?
epidermal tissue
ground tissue
What are the examples of simple tissues?
- parenchyma tissue
- collenchyma tissue
- sclerenchyma tissue
What are parenchyma tissue composed of?
parenchyma cells
What are sclerenchyma tissue composed of?
sclerenchyma cells
What are collenchyma tissue composed of?
collenchyma cells
What are complex tissues composed of?
more than 1 cell type
what does complex tissue forms?
vascular tissue
What are vascular tissues?
- xylem
- phloem
What is xylem for?
water and mineral transport
What is phloem for?
sugar/photosynthesis transport
What are the 3 types of plant tissues?
- Vascular Tissue
- Ground Tissue
- (Epi)Dermal Tissue
what are the vascular tissues?
xylem, phloem