Plants have structures that allow for gas exchange needed for photosynthesis and respiration. Leaves contain stomata, which are pores bordered by guard cells that open and close to control the rate of gas exchange. Gases diffuse into and out of the leaf through the stomata. The leaf also contains mesophyll tissue with chloroplasts that perform photosynthesis to capture light, as well as air spaces that facilitate gas exchange between the cells. Stomata open during the day to allow carbon dioxide in and oxygen out, and close at night to reduce water loss through transpiration.
This is a simple PowerPoint which talks about photosynthesis. It will be useful for people that want to revise or for teachers to teach to their class.
Welcome to our project dedicated to the fascinating process of photosynthesis! Here, you will find a comprehensive presentation that unravels the wonders of this vital process that powers life on Earth.
Our presentation will take you on a journey through the intricate workings of photosynthesis. From the capture of sunlight by chlorophyll to the conversion of carbon dioxide and water into glucose and oxygen, we will explore each step in an engaging and informative manner.
Through vivid visuals, interactive animations, and clear explanations, we aim to demystify the science behind photosynthesis and highlight its significance for both plants and the entire ecosystem. You will discover how plants utilize this process to produce food and release oxygen, sustaining life as we know it.
Whether you are a student, a teacher, or simply curious about the wonders of nature, our presentation on photosynthesis will enrich your understanding and appreciation of this fundamental biological phenomenon. Join us on this enlightening journey into the world of photosynthesis!
Part I
Explain the need for transport systems in multicellular plants
Describe the distribution of xylem and phloem tissue in roots, stems and leaves
Explain the absorption process in roots
Describe transport mechanisms
Part II
List factors that affects rate transpiration
Describe xerophyte properties
List the series of events that leads to translocation
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
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.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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.
This is a simple PowerPoint which talks about photosynthesis. It will be useful for people that want to revise or for teachers to teach to their class.
Welcome to our project dedicated to the fascinating process of photosynthesis! Here, you will find a comprehensive presentation that unravels the wonders of this vital process that powers life on Earth.
Our presentation will take you on a journey through the intricate workings of photosynthesis. From the capture of sunlight by chlorophyll to the conversion of carbon dioxide and water into glucose and oxygen, we will explore each step in an engaging and informative manner.
Through vivid visuals, interactive animations, and clear explanations, we aim to demystify the science behind photosynthesis and highlight its significance for both plants and the entire ecosystem. You will discover how plants utilize this process to produce food and release oxygen, sustaining life as we know it.
Whether you are a student, a teacher, or simply curious about the wonders of nature, our presentation on photosynthesis will enrich your understanding and appreciation of this fundamental biological phenomenon. Join us on this enlightening journey into the world of photosynthesis!
Part I
Explain the need for transport systems in multicellular plants
Describe the distribution of xylem and phloem tissue in roots, stems and leaves
Explain the absorption process in roots
Describe transport mechanisms
Part II
List factors that affects rate transpiration
Describe xerophyte properties
List the series of events that leads to translocation
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
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.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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.
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.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
5. Upper epidermis and Cuticle
•Single layer of cell, waxy, waterproof
•Provide protection for plant
•Usually transparent that permit most of the light to
pass through
•To reduce water loss
Upper epidermis
6. Palisade mesophyll
•Contain many chloroplast
•Long columnar cells closely
packed in arrangement
•Place where most
photosynthesis occur
•This to allowed the
absorption of light
efficiently
7. Spongy mesophyll
• Cells are not closely packed
compared to palisade mesophyll
• Allow the interchange of gas (CO2)
• Capture light and make food
• Having air spaces between them
that make the gas exchanged to
occur easier (which increases the
surface area)
• Less likely to go through
photosynthesis that palisade
mesophyll
8. Stomata
•Stomata is a main structure for gas exchange
-pores existed for gas exchange (gas diffuse
in and out of leaves )
-present on one or both surfaces of leaves
•Stomata can control rate of gas exchange by
opening and closing
•Have guard cell that control the water loss by
closing the stomata
9. The opening and closing of stomata by two highly
specialized cell called guard cell
• Happened during
photosynthesis
(day)
• Carbon dioxide
diffuse in
• Oxygen diffuse out
• At night usually
stomata closed
• Gas stop diffuse in
and out of leaves
10. •Stomata are closed when there is not much water in the guard cells
•Water gets inside the guard cells via osmosis
•These become turgid and because of their inelastic inner wall they
curve and open the stoma
•This process is influenced by
-Water availability
-Carbon dioxide concentration
-Light intensity
