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When Every Child Matters!

The Global Classroom carries the unique GEMS “Dynamic” materials and assessments of Dr Sunita Gandhi, Ph.D. Cambridge University, UK. These have been tested and tried in three countries, Iceland, India and the UK, and perfected with a three year trial with over 40,000 children in India participating.

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Covering Chapters
1.	Anatomy of Flowering Plants	15.	Growth, Repair, Regeneration, Ageing and Death
2.	Absorption, Transport and Transpiration	16.	Origin of Life
3.	Mineral Nutrition and Mode of Nutrition in Plants	17.	Evidences of Evolution
4.	Photosynthesis and Translocation of Solutes	18.	Theories of Evolution and Sources of Variations
5.	Reproduction and Development in Angiosperms	19.	Human Evolution
6.	Plants Hormones, Growth Regulation, Photomorphogenesis and Differentiation	20.	Domestication of Plants and Crop Improvement & Genetic Variation and Mutation
7.	Animal Nutrition	21.	Agricultural Chemicals and Biofertilizers
8.	Respiratory Gas Exchange and Transport	22.	Crops Today
9.	Circulatory System and the Blood	23.	Understanding Human Diseases
10.	Excretion and Osmoregulation	24.	Common Human Diseases
11.	Hormonal Coordination	25.	Mental Health, Addiction and Community Health
12.	Nervous Coordination	26.	Biomedical Engineering
13.	Movement and Locomotion	27.	Growth of Human Population
14.	Reproduction and Embryonic Development

Questions

Part II	[50 Marks]
Question 30	Time :10 mins Marks [4]
Name and define the various types of vascular bundles. Give suitable labelled diagrams.

Question 31	Time :10 mins Marks [4]
Describe the mechanism of digestion and absorption of fat in the alimentary canal.

Question 32	Time :10 mins Marks [4]
Draw the median V. S. of human brain.

Question 33	Time :10 mins Marks [4]
Explain Munch's mass flow hypothesis.

Question 35	Time :7 mins Marks [3]
Explain the most acceptable theory for the ascent of sap.

Question 36	Time :7 mins Marks [3]
Explain the mechanism of blood clotting.

Question 37	Time :7 mins Marks [3]
Draw V. S. of angiospermic ovule showing its structure just before fertilization.

Question 38	Time :7 mins Marks [3]
What is impulse? Describe the physiology of impulse conduction.

Question 39	Time :7 mins Marks [3]
Discuss the process of biological nitrogen fixation in plants.

Solutions Tips and Guidelines

Solution 30

The various types of vascular bundles are :

(i)

Radial

(ii)

Conjoint

(iii)

Concentric

(i)

Radial

The vascular bundle in which xylem and phloem lie radially side by side. This is found in roots.

(ii)

Conjoint

Xylem and phloem in this type of vascular bundle lie on the same radius, forming together a bundle.

Its two subtypes are : (a) Collateral (b) Bicollateral

(a) Collateral

The xylem and phloem lie together on the same radius in the position that xylem lies inwards and phloem outwards. In such bundle if cambium is present between xylem and phloem it is called open, e.g. dicot stem, and when cambium is absent it is called closed, e.g. monocot stem.

(b) Bicollateral

In such bundle the phloem is found to be present on both sides of xylem. Such bundle has two cambial strips one outer and other inner and thus is always open, e.g. Cucurbitaceae family.

(iii)

Concentric

In these vascular bundle one vascular tissue surrounds the other, such bundles are always closed. They are of two types:

(a) Amphivasal/Leptocentric : In this subtype xylem surrounds the phloem e.g. Dracaena.

(b) Amphicribal/Hadrocentric : In this vascular bundle phloem surrounds the xylem e.g. Ferns.

Tips/Guidelines :

Emphasis should be on the diagrams, correct language and examples.

•	The MAXIM Classbook

•	GEMS Dynamic Assessments

•	PerBooks Personalised TopicBooks

•	Sure Success Series

•	TargetPLUS On-Line Mocks

•	UK GCSE Mock Papers for Mathematics

•	GEMS “Dynamic” at a Glance

•	Philosophy Behind GEMS “Dynamic”

•	GEMS “Dynamic” Surveys and Perbooks

•	GEMS “Dynamic” Reports

•	GEMS “Dynamic” Training

•	GEMS “Dynamic” Lab School?