Oxygen essay topic example
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Sodium Chloride Oxygen Beaker Enzyme
DESCRIPTIVE TITLE The Effect of Different Amounts
of Sodium Chloride on the displacement of oxygen.
INTRODUCTION The dependability of the rate of an
enzyme-mediated reaction is based on two factors:
the substrate concentration and the concentration
and action of the enzyme that catalyzes the
reaction (Vander, et. al. , 2001). Enzymes are
catalysts that produce chemical reactions in
cells. Enzymes which are large proteins perform a
reaction which acts upon a substance known as a
substrate. When ...
Faster Dissolved Oxygen Test Kit
Faster Dissolved Oxygen Test Kit Purpose The
purpose of my project is to determine if there is
any significant difference in dissolved oxygen
(DO) levels as measured by the traditional HACH
(R) method or the newly developed CHEMets (R) test
kit under typical field conditions. Hypothesis My
hypothesis is that there is no significant
difference in dissolved oxygen (DO) levels as
measured by the traditional HACH (R) method or the
newly developed CHEMets (R) test kit under typical
field conditions. ...
Photosynthesis Leaf Material
Photosynthesis 1. Would you illuminate your house
plants with a green light bulb? Why or why not? It
would not be a wise choice to put a plant under a
green light bulb. The reason for this is that due
to the fact that the leaves are green they reflect
green light. This shining green light onto the
flowers will cause photosynthesis to stop. Since
the light is being reflect d, the cells do not get
any light. With out light they cannot carry out
the everyday of photosynthesis. If the choice was
Oxygen Carbon Dioxide
Oxygen Oxygen Atomic number 8 Atomic weight 15.
9994 Melting point-218. 4 oC (-361. 1 oF) Boiling
point-183. 0 oC (-297. 4 oF) Density (1 atom, 0
oC) 1. 429 g / l Valence 2 electronic con fig. 2-6
or 1 s 22 s 22 p 4. Oxygen is one of the must
important factors that made it possible for life
to exist in this planet. Oxygen is also one of the
elements must found in earth. Oxygen can be found
in in metals, water, and even the one thin that
protects us from the powerful sun rays. Oxygen is
a very ...
Oxygen Atoms Per Molecule
Oxygen Oxygen, symbol O, colorless, odorless,
tasteless, slightly magnetic gaseous element. On
earth, oxygen is more abundant than any other
element. Oxygen was discovered in 1774 by the
British chemist Joseph Priestley and,
independently, by the Swedish chemist Carl Wilhelm
Schiele; it was shown to bean elemental gas by the
French chemist Antoine Laurent Lavoisier in his
classic experiments on combustion. Large amounts
of oxygen are used in high-temperature welding
torches, in which a mixture o...
Oxygen Found Priestly Chemist
Discovery Oxygen was first discovered by two
scientists. One was a British Chemist Joseph
Priestly who was given credit for the discovery in
1774. The other was a Swedish Chemist Carl Wilhelm
Schiele who had also discovered it around the same
time as Priestly. Yet Priestly was given credit
because his work, and results were published.
Priestly had first found this new element when he
observed that mercuric oxide, on heating. Yielded
a gas that caused a flame to burn faster. He
later found that ...
Phosphates And Dissolved Oxygen
Phosphates are present in many natural waters,
such as lakes and streams. Phosphates are
essential to aquatic plant growth, but too much
phosphate can lead to the growth of algae and
results in an algae bloom. Too much algae can
cause a decrease in the amount in dissolved oxygen
in the water. Oxygen in water is affected in many
different ways by phosphates Phosphorus is usually
present in natural waters as phosphate (Mc welsh
and Raintree, 1998). Phosphates are present in
fertilizers and laundry...
Blood Vessel Oxygen Cells Water
1) To overcome many of the obstacles on the path
of any life function, specifically gas exchange,
evolution has provided many adaptations. Some of
these are the gills fish have developed, some
insects ability to diffuse oxygen to individual
cells or a moist diffusion barrier in humans. Fish
have developed a trait called countercurrent
exchange, in which blood passes through vessels in
a direction opposite to that of water flowing over
the gills of the fish. This allows the oxygen-rich
water to f...
Oxygen Carbon Dioxide
Oxygen Oxygen and its compounds play a key role in
many of the important processes of life and
industry. Oxygen in the biosphere is essential in
the processes of respiration and metabolism, the
means by which animals derive the energy needed to
sustain life. Furthermore, oxygen is the most
abundant element at the surface of the Earth. In
combined form it is found in ores, earths, rocks,
and gemstones, as well as in all living organisms.
Oxygen is a gaseous chemical element in Group VA
of the per...
Important Chemical Elements Food Web
I believe that the three most important elements
that exist are nitrogen, carbon and oxygen.
Nitrogen is extremely valuable because it is such
a large part of the food web. Carbon is important
because it is also part of the food web due to the
fact that it plays such an important role in the
structure of all living things and many nonliving
things. Carbon also provides our natural fuel.
Oxygen is important because it is essential in
many processes that enable life and in the
transformation of e...
Physiological Adaptations Of The Plesiosaur For Holding Its Breath
Physiological Adaptations of the Plesiosaur for
'Holding its Breath " By Nathan Eaton One hundred
and fifty million years ago, large aquatic species
of reptile such as the Plesiosaur dominated the
ocean, and were pre-eminent predators of the sea.
The branch of now extinct Plesiosaurs, or 'near
lizards', evolved into variant closely related
species specialised to take different niches in
the food chain. Such species of Plesiosaur include
the phenotypically similar Plesiosauroid and
Respiration Carbon Dioxide
We as humans need a way to gather oxygen from our
environment to survive. In response our body has a
system that carries out respiration which is the
of oxygen to the blood and the disposal of the
waste product carbon dioxide. In the human
breathing process the first step is the breath in.
First we open the mouth and expand our lungs to
bring in air. The first place the air traves into
our mouths which is an opening in the human body
used for taking in air, food, and the releasing of
Cellular Respiration Germinating Peas
Cellular Respiration Lab Report Wednesday 8: 00 A.
M. Lab March 2 nd, 2005 I. Introduction In this
lab we are measuring the amount of oxygen used in
both germinating and non germinating peas. We are
measuring the oxygen consumption by taking a
reading of a re spirometer submerged in two water
baths. The first bath will be cold water and the
second warm to determine the effect of
temperatures on oxygen consumption. Our negative
control will be glass beads to measure to increase
or decrease in at...
The Comparative Abundance Of The Elements
The Comparative Abundance of The Elements By
Derrick Deacon- There are 92 naturally occurring
elements, only 17 of them make up 99. 5% of the
earth's crust (including oceans and atmosphere). -
In living things (plants, animals, people) the six
most abundant elements are carbon, hydrogen,
oxygen, nitrogen, phosphorus and sulfur. - The
universe is dominated by the elements hydrogen
(83%) and helium (16%) 1. The Crust The outside of
the earth is a thin crust which is approximately
20 to 40 km thick...
Diving Animal Oxygen Myoglobin Lungs
When a diver dives deep for a period of time,
breathing regular compressed air, a certain amount
on nitrogen will be dissolved in the blood. If the
diver comes back up to the reduced pressure of the
surface too quickly, small bubbles of nitrogen
will form in the blood stream. This is called "the
bends" and requires the person to spend some time
in a decompression chamber to gradually reduce the
pressure and allow the nitrogen to escape the
body. Some animals goes down much deeper then we
do, so ...
Dissolved Oxygen Water Levels Gas
Research Dissolved oxygen infers to the volume of
oxygen that is contained in water. Oxygen enters
water through photosynthesis and across the water
interface. The amount of oxygen that can be held
by the water depends on the water pressure,
salinity, and temperature. Gas solubility
increases with decreasing temperature; thus colder
water holds more oxygen. A reason why freshwater
holds more oxygen than does saltwater is because
gas solubility increases with decreasing salinity.
When there is a ...
Oxygen Carbon Dioxide
Oxygen is one of the 92 known elements. An element
is a substance that cannot be decomposed into a
simpler substance by any simple means. Each of the
92 naturally occurring elements are therefore one
of the fundamental materials from which everything
in the Universe is made. The History of Oxygen On
August 1, 1774, Joseph Priestley examined the
effect of intense heat on mercuric oxide. He noted
that an air or gas was readily expelled from the
specimen. To his surprise a candle burned in this
Hypoxia High Altitude
Hypoxia Hypoxia is a condition in humans that is
caused by the reduction in partial pressure of
oxygen, inadequate oxygen transport, or when
tissues are simply unable to make use of the
oxygen provided. This disease occurs in the
tissues and brain. It results in a shortness of
breath, and an overall impairment of function.
Anoxia is the extreme form of hypoxia, and it
occurs when there is absolutely no oxygen at all
in the body that the brain and tissues can make
proper use of. There are five d...
Onset Of Blood Lactic Acid Accumulation Obla
OBLA - onset of blood lactic acid accumulation
Other wise known as the 'lactate threshold' this
is the point at which lactate levels in blood
exceed resting values during the lactic acid build
up due to exercise. Long term adaptations of OBLA
to aerobic training. This point governs
the lactic aerobic threshold Trained
athletes begin OBLA at higher work intensities
And higher values of VO 2 max than
untrained people. By definition, the lactate
threshold has been thought...
Airway Fires Do Oxygen Enriched
Do oxygen-enriched atmospheres exist beneath
surgical drapes and contribute to fire hazard
potential in the operating room? Title/Abstract
The title accurately reflects the description of
the study undertaken, while the abstract describes
the study, method, and supported outcome of the
study. The research question is presented in an
attempt to bias the reader is made by stating, "
oxygen concentrations beneath the drapes were
significantly reduced with the use of the
scavenger system.' Methods u...
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