Hsslive XII botany practical notes. PDF

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Botany practical record that helps to complete your practical record easily.it helps your child make an easy way of lwarning...

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BOTA ANY PRACTICAL EXAM A

DICOT STEM ( Eg. Centella, Eupatorium) E 1. Vascular bundles are collateral. 2. Xylem is endarch. 3. Cortex is heterogenous. …..hence it is a stem. 4. Vascular bundles are limited in number. 5. Vascular bundles are arranged in broken ring manner. 6. Vascular bundles are open. ……hence it is a dicot stem.

MONOCOT STEM ( Eg. Bamboo, Grass) 1. Vascular bundles are collateral. 2. Xylem is endarch. 3. Cortex is heterogenous. …..hence it is a stem. 4. Vascular bundles are numerous inn number. 5. Vascular bundles are scattered. 6. Vascular bundles are closed. ……hence it is a monocot stem.

assia, Musa) MONOCOT ROOT (Eg.Coloca 1. Vascular bundles are radial. 2. Xylem is exarch. 3. Cortex is homogenous. …..hence it is a root. 4. xylem and phloem groups are num merous in number. 5. Pith is large. 6. Round or oval outline of xylem. ……hence it is a monocot root.

B GINGER 1. Name of vegetative propagule : Rh hizome 2. Modified part: underground stem

POTATO 1. Name of vegetative propagule: Ste em tuber 2. Modified part: underground stem

ONION 1. Name of vegetative propagule: bu lb 2. Modified part: underground stem

PISTIA 1. Name of vegetative propagule: off set 2. Modified part: subaerial stem

C

on Rhizopus-asexual reproductio 1. Belongs to group fungi 2. spores are produced in black sporangia Hence the given material is Rhizopus s – asexual reproduction

porophyte Funaria-gametophyte with sp 1. belongs to group bryophytes 2. sporophyte is attached to gametop phyte. Hence the given material is funaria gametophyte with sporophyte

Fern-prothallus 1. belongs to group Fern,heart shapeed 2. bear antheridium and archegonium m Hence the given material is fern prothallus

Oscillatoria 1. filaments with necridium. 2. belongs to group blue green alga Hence the given material is oscillatorria

Pinus- Female cone 1. belongs to group gymnosperms 2. megasporophylls seen around the central axis. Hence the given material is Pinus-fem male cone

nts Spirogyra- vegetative filamen 1. belongs to group green alga 2. cells have ribbon shaped chloropla ast. Hence the given material is spirogyra a

D

I. Bt cotton 1. It is transgenic insect resistant plant 2. cry gene taken form Bacillus thurin ngiensis is introduced into this palnt.

II. Bioreactor 1. It is large vessel used to produce specific products, enzymes 2. raw materials are bioligically conveerted into products by Cells

III. Cloing vector 1. they are the carriers used to introd duce a foreign gene into host 2. here it is a plasmid pBR 322

E

l. Metaphase 1. chromosomes are arranged at equuator 2. centromeres seen at same line

II. Anaphase 1. centromere splits 2. daughter chromosomes move tow ard opposite poles F

1.study of imbibition by raisins AIM: To study of imbibition by raisinss

2.Chromatography AIM: To separate chlorophyll pigmen nts from leaves

3.Hydrilla experiment AIM: To demonstrate the evolution of Oxygen during photosynthesis

4.Thistle Funnel experiment AIM: To demonstrate osmosis

5.Ganong’s potometer AIM: To demonstrate the rate of tran nspiration

G

FABACEAE

LILIACEAE

H

I. symbiosis 1. Lichen is the symbiotic association n between algae and fungi. 2. Both partners are beneficial here.

II. Parasitism 1. Cuscutta is total stem parasite. 2. in this interaction cuscutta is beneficial while host is harmed.

III. Parasitism 1. Loranthus is partial stem parasite. 2. in this interaction loranthus is bene eficial while host is harmed.

IV. Commensalism 1. Vanda grows on other plants but d do not absorb food from it. 2. in this interaction vanda is beneficial while host is not harmed.

I.

C.S of Anther

Mini.G KKMHSS VANDITHAVALAM

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