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Plant anatomy
q/a
| Question | Answer |
|---|---|
| Father of plant anatomy? | N. Grew |
| Who coined the term tissue was coined by? | N. Grew |
| Term animal tissue was coined by? | Bichat |
| Term Meristem, xylem and Phloem was coined by? | Nageli |
| Who classified meristem? | Haberlandt |
| Apical cell theory was given by? | C. Nageli and Hofmeister |
| Histogen theory was given by? | Hanstein |
| Tunica corpus theory was given by? | Schmidt |
| Quiescent centre concept was given by? | Clowes |
| Cell apical theory? | --> Nageli, Hofmeister --> one apical cell gives rise to whole plant --> lower cryptograms (algae, bryophyta) |
| Histogen theory? | --> Hanstein --> Applicable for both root and shoot --> dermatogen=> Epidermis --> periblem=> hypo, cortex, endo --> Plerome=> stele |
| Tunica corpus theory? | --> Schmidt --> Applicable for root apex only --> Tunica forms epidermis by anticlinal divisions only --> Corpus forms cortex by both anticlinal and periclinal divisions |
| Quiescent centre concept | --> Clowes --> Inactive region in root apex (Go phase) --> Reservoir for damages cell meristem |
| Promeristem develops in? | Beginning of Embryonic stage, hence it is also called embryonic meristem |
| Primary meristem is derived from? | Promeristem |
| Primary meristem differentiate into? | Primary permanent |
| Secondary meristem is derived from? | Primary permanent |
| Secondary meristem is de-differentiated into? | Secondary permanent |
| Haberlandt divided the apical meristem into three zones namely? | cell division, cell elongation and cell differentiation |
| Grasses grow due to? | intercalary meristem--> apical meristem is absent in grasses |
| Intercalary meristem are present at? | Between two permanent tissue, base of internodes in Graminae; base of leaves in monocots and pinus; base of nose in mint (labiatae) |
| Which permanent tissue is found in cortex or ground tissue? | Parenchyma __> Universal tissue |
| Which permanent tissue is found in pericycle of dicot stem? | Prosenchyma |
| Parenchyma found in floating hydrophytes? | Floating hydrophytes |
| Chlorenchyma are present in? | Palisade parenchyma of leaf |
| Cell wall is made up of? | Cellulose and calcium pectate |
| Collenchyma is made of? | Pectocellulose |
| Collenchyma is absent in? | Root and monocot stem |
| Hypodermis of monocot and dicot stems have which permanent tissue? | Hypodermis of monocot stem: Sclerenchyma Hypodermis of dicot stem: Collenchyma |
| Lamellar/plate collenchyma is present in? | Sunflower stem |
| Angular collenchyma is present in? | Stem of vitis, solanum, tomato |
| Lacunar/ tubular collenchyma is present in? | Cucurbita stem |
| Why is cotton called a false fibre? | It's fibre is made up of cellulose and epidermal seed hair |
| Among bast(phloem) fibre and Wood (xylary) fibre which is of economic importance? | Bast fibre |
| Primary xylem originates from? | Procambium |
| Which is the conducting part of xylem? | Xylem fibre (hadrome) |
Created by:
Mushroomang
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