The human excretory system includes kidneys, ureters, a urinary bladder, and urethra. Kidneys filter waste from the blood to produce urine, which passes through nephrons - clusters of capillaries and tubes that selectively reabsorb water and nutrients to regulate urine production. Urine is stored in the bladder and released through the urethra under nervous control. Plants deal with wastes like oxygen through transpiration and shedding of leaves and parts, storing wastes in vacuoles, resins, and gums or excreting into the soil.
It has two videos which are not playing . If you want to add videos you can download it from the link given below.
For plants: http://www.youtube.com/watch?v=s44RQi_P7kQ
For animals: http://www.youtube.com/watch?v=EhnRhfFLyOg
Various waste products are formed in our body as a result of many
metabolic activities taking place inside the body. These waste substances if
accumulated would poison cells or slow down their metabolism. Hence, the body must
get rid of these unwanted substances.The metabolic wastes to be excreted include
CO2, H2O, fat, ammonia, urea and uric acid.
The nourishment coming from food that is simplified or processed by digestion is consumed by the blood and conveyed all through the body. When this absorbed food is broken down in the tissues and many toxic and poisonous substances are produced which should be removed as they may be fatal if present beyond a certain concentration. The removal of these substances is known as excretion. Excretion and osmoregulation, both are interconnected processes and occur side by side. in higher vertebrates like humans, kidneys perform both the functions, excretion as well as osmoregulation.The system responsible for these function is known as the excretory system or urinary system
It has two videos which are not playing . If you want to add videos you can download it from the link given below.
For plants: http://www.youtube.com/watch?v=s44RQi_P7kQ
For animals: http://www.youtube.com/watch?v=EhnRhfFLyOg
Various waste products are formed in our body as a result of many
metabolic activities taking place inside the body. These waste substances if
accumulated would poison cells or slow down their metabolism. Hence, the body must
get rid of these unwanted substances.The metabolic wastes to be excreted include
CO2, H2O, fat, ammonia, urea and uric acid.
The nourishment coming from food that is simplified or processed by digestion is consumed by the blood and conveyed all through the body. When this absorbed food is broken down in the tissues and many toxic and poisonous substances are produced which should be removed as they may be fatal if present beyond a certain concentration. The removal of these substances is known as excretion. Excretion and osmoregulation, both are interconnected processes and occur side by side. in higher vertebrates like humans, kidneys perform both the functions, excretion as well as osmoregulation.The system responsible for these function is known as the excretory system or urinary system
What is Excretion ?, organ used, types of regulation, modes of excretion, explanation of each, human excretory system & function, kidney and its parts, mechanism of urine formation, Dialysis
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
What is Excretion ?, organ used, types of regulation, modes of excretion, explanation of each, human excretory system & function, kidney and its parts, mechanism of urine formation, Dialysis
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
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
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
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 Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. When chemical reactions use the carbon source and the oxygen for energy
generation, they create by-products that are not only useless for the cells of the
body, but could even be harmful.
These waste byproducts are therefore needed to be removed from the body and
discarded outside by a process called excretion.
Again, if the basic rules for body design in multi-cellular organisms are followed,
a specialised tissue for excretion will be developed, which means that the
transportation system will need to transport waste away from cells to this
excretory tissue.
INTRODUCTION
3. We have already discussed how organisms get rid of gaseous
wastes generated during photosynthesis or respiration.
Other metabolic activities generate nitrogenous materials
which need to be removed.
The biological process involved in the removal of these
harmful metabolic wastes from the body is called
excretion.
Different organisms use varied strategies to do this.
Many unicellular organisms remove these wastes by simple
diffusion from the body surface into the surrounding water.
As we have seen in other processes, complex multi-cellular
organisms use specialised organs to perform the same
function.
4. Excretion in Human Beings
The excretory system of human beings includes a pair of
kidneys, a pair of ureters, a urinary bladder and a urethra.
Kidneys are located in the abdomen, one on either side of the
backbone.
Urine produced in the kidneys passes through the ureters into the
urinary bladder where it is stored until it is released through the
urethra.
How is urine produced?
The purpose of making urine is to filter out waste products from
the blood.
Just as CO2 is removed from the blood in the lungs, nitrogenous
waste such as urea or uric acid are removed from blood in the
kidneys.
5. • It is then no surprise that the basic filtration unit in
the kidneys, like in the lungs, is a cluster of very thin-
walled blood capillaries.
• Each capillary cluster in the kidney is associated with
the cup-shaped end of a tube that collects the filtered
urine.
• Each kidney has large numbers of these filtration units
called nephrons packed close together.
• Some substances in the initial filtrate, such as glucose,
amino acids, salts and a major amount of water, are
selectively re-absorbed as the urine flows along the
tube.
• The amount of water reabsorbed depends on how
much excess water there is in the body, and on how
much of dissolved waste there is to be excreted.
6. The urine forming in each kidney eventually enters a long tube, the ureter, which connects the kidneys with the urinary bladder.
Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra.
The bladder is muscular, so it is under nervous control, as we have discussed elsewhere.
As a result, we can usually control the urge to urinate.
7. Excretion in Plants
Plants use completely different strategies for excretion than those of
animals.
Oxygen itself can be thought of as a waste product generated during
photosynthesis!
We have discussed earlier how plants deal with oxygen as well as CO2 .
They can get rid of excess water by transpiration.
For other wastes, plants use the fact that many of their tissues consist of
dead cells, and that they can even lose some parts such as leaves.
Many plant waste products are stored in cellular vacuoles.
Waste products may be stored in leaves that fall off.
Other waste products are stored as resins and gums, especially in old
xylem.
Plants also excrete some waste substances into the soil around them.
8. Describe the structure and functioning of nephrons.
What are the methods used by plants to get rid of excretory products?
How is the amount of urine produced regulated?