The circulatory system, also known as the blood-transporting system, carries blood throughout the body via arteries, veins and capillaries. The blood delivers oxygen and nutrients to cells from the food we eat and removes their waste, such as carbon dioxide. Red blood cells transport oxygen to cells and pick up carbon dioxide to bring back to the lungs and heart. White blood cells act as soldiers to fight disease in the blood. The heart pumps blood continuously through this system to sustain life.
Class 11 Important Questions for Biology - Human RespirationInfomatica Academy
Here you can get Class 11 Important Questions for Biology based on NCERT Textbook for Class XI. Biology Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Human Respiration for Class 11 Biology subject.
Class 11 Important Questions for Biology - Human RespirationInfomatica Academy
Here you can get Class 11 Important Questions for Biology based on NCERT Textbook for Class XI. Biology Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Human Respiration for Class 11 Biology subject.
Transportation in animals and plants. Circulatory system in humans. Blood pressure and Heart attack. Excretory system in humans. Vascular tissue in plants.
A closed system of the heart and blood vessels
The heart pumps blood
Blood vessels allow blood to circulate to all parts of the body
The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products
A closed system of the heart and blood vessels
The heart pumps blood
Blood vessels allow blood to circulate to all parts of the body
The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products
Not 100 % genuine slides, took from a couple of sources --> credits to those sources.
#important thing is students are able to learn conveniently
BIOLOGY GCE O level Syllabus
NOTE: NEED TO DOWNLOAD BECAUSE THERE ARE MANY MANY ANIMATIONS THAT HIDE SOME OF THE CONTENT
Transportation in animals and plants. Circulatory system in humans. Blood pressure and Heart attack. Excretory system in humans. Vascular tissue in plants.
A closed system of the heart and blood vessels
The heart pumps blood
Blood vessels allow blood to circulate to all parts of the body
The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products
A closed system of the heart and blood vessels
The heart pumps blood
Blood vessels allow blood to circulate to all parts of the body
The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products
Not 100 % genuine slides, took from a couple of sources --> credits to those sources.
#important thing is students are able to learn conveniently
BIOLOGY GCE O level Syllabus
NOTE: NEED TO DOWNLOAD BECAUSE THERE ARE MANY MANY ANIMATIONS THAT HIDE SOME OF THE CONTENT
This presentation has been created by Dr Faisal Qadir with help of various presentations downloaded from net for better understanding of students and teachers
Biology Project [Circulatory System] Vijay Raja Std Vii Navdeep With Soundvijayaswathy
My project was to prepare a presentation on human circulatory system.
This is what it finally looked like .
Hope it comes of some use to you all .
Vijay Raja
An 8th grade lesson introductory lesson on the circulatory system ... in addition to the powerpoint I had the students take their pulse at rest at the beginning of class and then again during the middle of class after having them run in place for 30 seconds
1 Which of the following play a role in causing a heart .pdfadhikaribrothers
1. Which of the following play a role in causing a heart attack? (choose all that apply)
A) fats attach to the inside of an artery
B) cholesterol blocking a heart chamber
C) high blood pressure damages artery linings
D) high blood pressure bursts small capillaries
E) damaged blood vessels collect substances from the blood
It was unknown how long air pollutants stay in the body and if they leave through the
urinary system. Miller et al. (2017) wanted to study this. Fourteen human males were
exposed to gold particles of different sizes by inhalation during 2 hours of intermittent
exercise. The gold represents the air pollution particles. Gold was chosen because it will
not harm the body but can be made in several microparticles to mimic pollution.
3. Particles that are inhaled could move into the circulatory system
A) via bulk flow from alveoli to vein
B) via bulk flow from lungs to the heart
C) via passive transport from alveoli into a capillary
D) via passive transport from the lungs to the kidney
E) via active transport from nephron to bronchiole
F) via active transport from vein to artery
4. Once in the circulatory system, put these structures in the correct order that the particle
would move through them (assume they remain in the circulatory system):
Left side of the heart
Right side of the heart
Rest of the body
Vein
5. Particles could enter the urinary system from a (1/2pt)
A) capillary
B) nephron
C) vein
D) artery
E) alveoli
F) microvilli
8. Blood pressure could impact the movement of particles into urine. How would that work?
A) lower blood pressure would allow more particles to move into the nephron via passive transport
B) higher blood pressure could push more particles into the nephron
C) higher blood pressure could damage the kidney which would then produce more urine
D) lower blood pressure would mean there is more water available to be turned into urine.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
1. Circulatory System Questions
1.-What is the circulatory system?
a)The body's breathing system
b)The body's system of nerves
c)The body's food-processing system
d)The body's blood-transporting system
2.-From what source do cells get their food?
a)Blood
b)Oxygen
c)Other cells
d)Carbon dioxide
3.-Why is oxygen important to blood and to the cells?
a) Oxygen helps the blood to clot.
b) Oxygen brings food to the cells.
c) Oxygen is necessary for cell growth and energy.
d) Oxygen is not important -- carbon dioxide is the most important substance to the body.
4.-Which type of blood vessels carries blood away from the heart?
a)Veins
b)Arteries
c)Capillaries
d)Arteries, veins and capillaries
5.-Why is blood that flows from the lungs to the heart bright red rather than dark red?
a) Oxygen makes it red.
b) Carbon dioxide makes it red.
c) Gastric juices produce the red colour of the blood.
d) The lungs add a pigment (dye) to blood as it flows
through them.
6.-What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells?
2. a)Plasma
b)Platelets
c)Red corpuscles
d)White corpuscles
7.-What is the main job of the red corpuscles in the blood?
a) To clot blood
b) To fight disease
c) To transport oxygen to the body's cells
and carry away carbon dioxide from the cells
d) To transport carbon dioxide to the body's cells and
carry away oxygen from the cells
8.-Which of the following can best be compared to soldiers?
a)Lungs
b)Capillaries
c)Red blood cells
d)White blood cells
9.-Which element in the blood is round and colourless?
a)Plasma
b)Platelets
c)Red blood cells
d)White blood cells
10.-What would happen to people who have an open wound and whose blood did not clot
naturally?
a)They would bleed to death.
b)Nothing. Clotting is not important.
c)They would have to take special clotting drugs.
d)They would have to take regular doses of plasma.
11.-What happens when a clot occurred in an undamaged blood vessel?
a) You would bleed to death.
B) A scab will form on the skin surface.
c) Platelets stick to the edges of the cut and to one another,
forming a plug.
d) The flow of blood to tissues beyond the clot may be cut off.
12.-What happens to blood when it is pumped into the thin-walled blood vessels of the lungs?
a) Platelets are exchanged for plasma.
b) Carbon dioxide is replaced with oxygen.
c) Blood fills the lungs and causes coughing.
3. d) Nothing -- the lungs are just a place blood goes through
on its way back to the heart.
13.-What is the function of the blood vessels and capillaries?
a) They pump blood to the heart.
b) They filter impurities from the blood.
c) They carry blood to all parts of the body.
d) They carry messages from the brain to the muscles.
14.-Why does blood turn dark red as it circulates through the body?
a) It starts to clot.
b) It gets old and dirty flowing through the body.
c) The oxygen in it is replaced with carbon dioxide.
d) The farther blood is from the heart, the more dark red it is.
15.-How many major types of blood have scientists discovered?
a)One: Type "O"
b)Two: white cells and red cells
c)Three: white cells, red cells, and plasma
d) Four: Types A, B, AB, and O
16.-What is the organ that pumps blood all throughout the human body?
a)The lungs
b)The heart
c)The kidneys
d)The blood vessels and capillaries
