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Only green plants possess the amazing ability of trapping solar energy to produce food.
Photosynthesis is the process in which green plants absorb solar energy to make food from carbon dioxide and water.
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This slides explains the life processes, types of nutrition, mechanism of photosynthesis in plants and the structure of leaf.
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Only green plants possess the amazing ability of trapping solar energy to produce food.
Photosynthesis is the process in which green plants absorb solar energy to make food from carbon dioxide and water.
Nutrition in plants cbse class 10 biology Life Processes Pt. 1IgnitedMindsCBSE
This slides explains the life processes, types of nutrition, mechanism of photosynthesis in plants and the structure of leaf.
Ignited Minds CBSE tuition classes
Tutoring Service in farrukhabad
https://www.facebook.com/ignitedmindscbse
https://www.youtube.com/channel/UCsGu08EmuAY9H3L16bft1ig
+91 81141 14995
ignitedmindscbse@gmail.com
Homeostasis in plants & Types Of Plants On the Basis Of Water Availability Imibro2012
Homeostasis in plants & Types Of Plants On the Basis Of Water Availability , Detailed Explanation , Filled with Information !! With Picture Illustrations
Homeostasis in plants & Types Of Plants On the Basis Of Water Availability Imibro2012
Homeostasis in plants & Types Of Plants On the Basis Of Water Availability , Detailed Explanation , Filled with Information !! With Picture Illustrations
Topics covered:- Hygroscopic, Endogenous and Exogenous source for plant movement, Types of Endogenous movements, Tropism, Taxis, Nastic movement and Kinesis with examples.
“Any characteristic of an organism or its part which enable it to survive in its own particular habitat is called adaptation”. It is also defined as, “Adaptation is the evolutionary process whereby an organism becomes able to survive and reproduce in its habitat or habitats”. Adaptation is nothing but any changes in the structure or function of an organism or in any parts of its that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.
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Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
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Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
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This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Embracing GenAI - A Strategic ImperativePeter Windle
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The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
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4. INTRODUCTION
Have you observed the leaves of Mimosa
Pudica (touch-me-not plant) closes on
touching,wheres Helianthus annus
(sunflower) follows the path of the sun.
Plants are sensitive to external factors
like light,gravity, temperature etc.
5. TROPISM IN PLANTS
▪ TROPISM is a unidirectional movement of a whole or
part of a plant towards the direction of stimuli.
▪ TYPES OF TROPISM :
▪ Phototropism
▪ Geotropism
▪ Hydrotropism
▪ Thigmotropism
▪ Chemotropism 5
6. • Phototropism: movement of a plant part towards
light.e.g.shoot of a plant.
• Geotropism: Movement of a plant in response to
gravity.e.g.root of a plant.
• Hydrotropism: Movement of a plant or part of a plant
towards water. E.g. root of a plant.
• Thigmotropism : Movement of a plant part due to
touch. e.g.climbing vines. 6
DEFINITION FOR TYPES OF TROPISM
7. ▪ Chemo tropism: Movement of a part of plant in
response to chemicals.e.g.growth of a pollen tube
in response to sugar present on the stigma.
▪ Tropism is generally termed positive if growth is
towards the signal and negative if it is away
from the signal.
▪ The shoots are positively phototropic.
7
8. Do you
know ?
Some halophytes produce
negatively geotropic
roots(e.g.Rhizophora).
These roots turn 180 degree
upright for respiration. 8
RHIZOPHORA
9. NASTIC MOVEMENTS
9
▪ NASTIC MOVEMENT orS are non-directional response of a plant or
part of a plant to stimulus.
▪ Classification:
Photonasty: movement of a part of a plant in response to
light. E.g Ipomea alba.
Thigmonasty: movement of a part of plant in response to touch.
its also known as seismonasty.e.g. Mimosa pudica.
Thermonasty : movement of part of a a plant is associated with
change in temperature.e.g. tulip.
11. • PHOTO means LIGHT and SYNTHESIS
means TO BUILD.
• PHOSYNTHESIS: building up with the
help of light.
• During this process, light energy is
converted into chemical energy.
• Green plants are autotropic,because
they prepare their food materials
through the process called
photosynthesis. 11
PHOTOSYNTHESIS
14. TRANSPIRATION
14
The loss of water in the form of water
vapour from the aerial parts of the plant
body is called as transpiration.
The leaves have tiny, microscopic pores
called stomata.
Each stomata is surrounded by guard
cells.
These guard cells help in regulating the
rate of transpiration by opening and
closing of stomata.
15. POINTS TO REMEMBER
Growth movement whose direction is determined
bythe direction of the stimulus is called tropism.
Non-directional, response of a plant part to stimulas
is called nastic movement.
The process by which plants prepare their food
material is called photosynthesis.
The loss of water in the form of water vapour from
the aerial parts of the plant body is called
transpiration.
15
