Cellular respiration is a redox process that mainly occurs in mitochondria, whereas Gibbs's free energy refers to the energy in a closed system.
What is cellular respiration?Cellular respiration refers to the oxide reduction reactions (redox) associated with the production of energy in aerobic cells.
Cellular respiration occurs in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and oxidative phosphorylation).
Finally, in thermodynamics, the Gibbs free energy refers to the energy generated in a closed system.
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The half-life of potassium-40 is 1.3 billion years. If a rock specimen contained 1g of
potassium-40 when it was formed, how much potassium-40 would be left if the rock is 2.6
billion years old?
Answer:
2.6 billion years
Explanation:
There are essentially two ways of solving nuclear half-life problems. One way is by applying the half-life formula, which is
A
(
t
)
=
A
0
(
t
)
⋅
(
1
2
)
t
t
1
2
, where
A
(
t
)
- the quantity that remains and has not yet decayed after a time t;
A
0
(
t
)
- the initial quantity of the substance that will decay;
t
1
2
- the half-life of the decaying quantity;
In this case, the rock contains
1/4th
of the orignal amount of potassium-40, which means
A
(
t
)
will be equal to
A
0
(
t
)
4
. Plug this into the equation above and you'll get
A
0
(
t
)
4
=
A
0
(
t
)
⋅
(
1
2
)
t
t
1
2
, or
1
4
=
(
1
2
)
t
t
1
2
This means that
t
t
1
2
=
2
, since
1
4
=
(
1
2
)
2
.
Therefore,
t
=
2
⋅
t
1
2
=
2
⋅
1.3 = 2.6 billion years
A quicker way to solve this problem is by recognizing that the initial amount of the substance you have is halved with the passing of each half-life, or
t
1
2
.
This means that you'll get
A
=
A
0
2
after the first 1.3 billion years
A
=
A
0
4
after another 1.3 billion years, or
2
⋅
1.3 billion
A
=
A
0
8
after another 1.3 billion years, or
2
⋅
(
2
⋅
1.3 billion
)
Who would have first made this statement while observing cork under a microscope?
"The cork looks like little rooms, or cells.”
Hooke
Schleiden
Leeuwenhoek
Virchow
Answer:
Robert Hooke
Explanian
Hooke observed a thinly sliced piece of cork under a microscope and noticed they looked like the cells that monks would sleep in. That's why cells were given their name!
Which sustainable building practice does the photograph show?
A. Using a green roof to capture carbon and reduce a building's
energy costs
B. Reusing old bottles and cans as insulating building materials
C. Reducing fossil fuel consumption and its associated pollution
D. Replacing wilderness with buildings to reduce the absorption of
carbon dioxide
Reusing old bottles and cans as insulating building materials is the sustainable building practice. Therefore, option (C) is correct answer.
Sustainable building practices aim to minimize the environmental impact of construction and operation of buildings while enhancing the health, well-being, and productivity of occupants. These practices involve incorporating environmentally responsible methods and materials into the design, construction, and operation of buildings.
Therefore, reusing old bottles and cans as insulating building materials is the sustainable building practice.
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What are the four features of minerals? (use complete sentences and your own words.)
(NO LINKS PLEASE)
Answer:
1)All minerals are naturally occuring.
2)They have to have a crystalline structure and a definite chemical composition.
3)They are inorganic.
4)They are a solid.
Explanation:
1-You have to find a mineral in the nature. It cannot be created in a lab.
2-Crystallline structure is the ordered arrangement of ions, molecules, or atoms in an object.
3-Inorganic means that the object has not bonded with carbon.
4-Solid means that it is not fluid and is hard and stable.
Hope this helps! :)
The cellular machinery responsible for protein synthesis is the:.
how Khoi San people know a Hoodia gordinii plant is for hunger and thirst
Answer:
The Bushmen of the Kalahari desert, also known by the name “khoi-San”, used Hoodia gordonii for thousands of years to ward off hunger and thirst while hunting and looking for food. The active ingredient in hoodia cordonii is called p57, a steroidal glycoside, and it is this ingredient that is thought to suppress appetite.
Play the spectrogram at normal speed and slowed down. How many calls did the bats make?
Answer:
Bat echolocation calls vary in their dominant frequency approximately between 11 kHz (e.g. Euderma maculatum; Fullard & Dawson 1997) and 212 kHz (Cloeotis percivali; Fenton & Bell 1981). Most insectivorous bats call with dominant frequencies between 20 kHz and 60 kH
What is basal cell carcinoma and what does it look like?.
Answer:
Basal cell carcinoma is a type of skin cancer that most often develops on areas of skin exposed to the sun, such as the face. On brown and Black skin, basal cell carcinoma often looks like a bump that's brown or glossy black and has a rolled border. Basal cell carcinoma is a type of skin cancer.
The Earth’s rotation is the only thing that impacts wind
Answer:
false
Explanation:
While the Earth's rotation does play a role, it is a somewhat indirect one. The primary factor that affects the formation of winds is differences in atmospheric pressure. As is true throughout nature, any fluid will try to move from a region of high pressure to a region of low pressure.
Answer:
False
Explanation:
This is false because the earth goes one way but the wind can go all kinds of ways
Which of the following attitudes is NOT important in science?
a.
curiosity
c.
creativity
b.
having a closed mind
d.
skepticism
Please select the best answer from the choices provided
A
B
C
D
Answer:
creativity
Explanation:
the creativity isn't important in science because in science we need to process methodically
The attitude that is NOT important in science is b. having a closed mind.
What is a closed mind?A closed mind refers to a person who is not willing to consider different ideas or opinions.
A closed mind cannot engage in scientific inquiries.
Scientific inquiry helps scientists to study the natural world in diverse ways before proposing explanations based on the evidence derived from their scientific activities.
Thus, important attitudes in science include:
CuriosityCreativitySkepticism.HonestyFlexibilityPersistenceOpen-mindednessTolerance of uncertaintyAcceptance of the provisional nature of scientific explanation.But, having a closed mind cannot help in science.
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What scientific term is a well-tested explanation for a set of observations or experimental results?
Answer:
A scientific theory is a well-tested explanation for a wide range of observations or experimental results.
Explanation:
Can someone help me please
Answer:
What subject is it, and could you please show the formula?
Explanation:
Answer:
I can but umm I don't understand so sorry
Explanation:
I can't read that and don't know what it is about
Enzymes are a diverse group of biological catalysts.Enzymes act as catalysts , because they?A. Give us immediate quick energy
B.Speed up chemical reactions in our body by lowering energy
C. Increase the amount of energy needed to break down substrates.
D. Can act on any substrate molecule at any time
Answer:
B
Explanation:
Enzymes in our bodies are catalysts that speed up reactions by lowering the activation energy necessary to transform a reactant into a product.
T A C G T G G A C T G A G G A C T C C T C is this a 'sense' strand or 'antisense' strand?
The information provided is NOT sufficient to indicate if the TACGTGGACTGAGGACTCCTC sequence is a 'sense' strand or 'antisense' strand.
What is a sense DNA strand?DNA is a double helix molecule composed of two long chains of nucleotides linked by hydrogen bonds.
During transcription, the sense DNA strand is actively used as template to produce a complementary RNA molecule.
In consequence, it is required to know the sequence of the resulting RNA to determine if the sequence above belongs to a 'sense' strand or 'antisense' strand.
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Answer:
C
Explanation:
Critically discuss the scope of medical anthropology as a
transdisciplinary field of Social Science.
Medical anthropology deals with the study of human health using social approaches and structural model of society health and wellbeing.
What is medical anthropology?Medical anthropology deals with research on health and society plan or program.
The study uses social approaches and structural model of society health and wellbeing such that culture, people and discipline are captured.
Therefore, Medical anthropology deals with the study of human health using social approaches and structural model of society health and wellbeing.
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Do athletes need protein powders to increase their muscle mass or athletic performance?
A cluster of thunderstorms has developed over the Atlantic Ocean in August. The
speed of its wind is getting higher. It has heavy rains and is moving towards the
east coast of North America. What may develop from this?
A
a blizzard
В
B.
a hurricane
С
a tornado
D
a drought
Com
From the data provided, the storm is likely going to develop into a hurricane.
What are hurricanes?Hurricanes are large tropical storms which develop as a result of warm ocean currents and which travels at relatively high speeds precipitation large amounts of rainfall along the way.
Hurricanes develop over the Atlantic ocean.
From the given information, the thunderstorms developed over the Atlantic Ocean, has heavy rains and is moving towards theeast coast of North America.
Therefore, it can be concluded that it is likely a hurricane.
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HELP NOW NOW 20 POINTS AND BRAINLIST
Answer;
D
Explanation:
To initiate signal transduction, the ligand must pass through the plasma membrane by passive diffusion. On binding with the receptor, the ligands pass through the nuclear membrane into the nucleus, altering gene expression.
5. What are the outputs of photosynthesis?
glucose and oxygen
water and carbon dioxide
energy and water
carbon dioxide and glucose
[tex]\huge\mathcal\pink{ANSWER} [/tex]
[tex] \mathsf \purple{glucose \: and \: oxygen}[/tex]
Answer:
Glucose and oxygen
Explanation:
Photosynthesis is a natural food making process that occurs in plants.In the process(in the leaves of plants) carbon dioxide reacts with water containing minerals in the presence of sunlight(which was trapped by the chloroplast) to produce oxygen and glucose.
why is it beneficial for scientists to understand how other organisms are able to edit their RNA
Answer:
Many see RNA editing as an important alternative to DNA editing using techniques such as CRISPR.
Explanation:
It is beneficial for scientists to understand how other organisms are able to edit their RNA because it gives an idea for scientists in order to identify particular causes and symptoms of genetic and environmental disorders among individuals.
What is RNA?RNA stands for ribonucleic acid. It may be characterized as a type of nucleic acid that is significantly present in all living cells. It expresses some structural and functional similarities to DNA. There are major three types of RNAs found. It includes mRNA, tRNA, and rRNA.
There are various techniques that help scientists to observe numerous RNA and its editing in organisms. It is an important alternative to DNA editing. This methodology of RNA editing and functionality is determined by using techniques such as CRISPR.
Therefore, it is beneficial for scientists to understand how other organisms are able to edit their RNA because it gives an idea for scientists in order to identify particular causes and symptoms of genetic and environmental disorders among individuals.
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What is kyphosis caused by?
¿What is kyphosis caused by?
Spinal cause: It is the one that produces kyphosis in adults because it is caused by a vertebral fracture due to osteoporosis.
#HopeThisHepls
¿What is kyphosis caused by?
Kyphosis is one that has exaggerated forward curvature of the upper back. This usually notices the weakness of the bones of the spine, which causes them to fracture and compromise.
In most cases, kyphosis stops progressing when the teen stops growing.
Translation:La cifosis es aquella que tiene curvatura exagerada hacia adelante de la parte superior de la espalda. Esta suele darse a la debilidad de los huesos de la columna vertebral, que hace que se fracturen y compriman.
En la mayoría de los casos, la cifosis deja de avanzar cuando el adolescente deja de crecer.
Which of the following diagrams illustrates the position of t3
he sun an earth on the longest day of the year i in the northern hemisphere
Answer:
please provide clean image.......
Explanation:
in your desktop ️ I can't able to see anything....
how does bear respond to danger?
Bears may react defensively by woofing, yawning, salivating, growling, snapping their jaws, and laying their ears back
10. The formation of product in a reaction is based on
Sperm and eggs are found in different parts of plants. Explain why it is important for these
cells to unite, and describe some factors in an environment that help unite them.
Explanation:
When sperm and eggs in plants are united they fertilize the egg creating a plant able ready seed. Some factors in an environment that help them unite are; (animals) bees, butterflies, and other insects. wind bringing pollen around
When sperm and egg (found in different parts of plant) unite fertilization takes place which results in the formation of a zygote and later it forms an embryo.
Some factors in an environment that help unite them are air, water, insects, birds, bats etc.
What is sperm?"Sperm is defined as male reproductive cell. In case of plants, it is known as male gametophyte (pollen)."
What is egg?"Egg is defined as female reproductive cell. In case of plants, it is known as female gametophyte (ovum)."
What is fertilization?"Fertilization can be defined as the fusion of the male gametes (pollen) with the female gametes (ovum) to form a diploid zygote."
What is a zygote?"A zygote is a cell formed by the union of two gametes."
What is embryo?"A plant embryo is an undeveloped plant inside a seed."
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What is the difference between B-cell lymphocytes and T-cell lymphocytes?
B cells regulate blood pH, and T cells regulate body temperature.
B cells are produced in the thymus, and T cells are produced in the bone marrow.
B cells engulf bacteria, and T cells carry bacteria to the lymph nodes.
B cells produce antibodies, and T cells destroy infected cells.
Answer:
B cells and T cells are the white blood cells of the immune system that are responsible for adaptive immune response in an organism. Both the cells are made in the bone marrow.Explanation:
B cells produce antibodies, and T cells destroy infected cells. So, the correct option is D.
What are B cells and T cells?The two primary categories of lymphocytes are T cells and B cells. Antibody molecules made by B cells can attach to and kill invasive viruses and bacteria. T cells are the immune system's first line of defence against foreign invaders. They also create cytokines, that are biological agents that aid in the activation of other immune system components.
T cells can eliminate malignant or contaminated cells. Moreover, they control overall immune response by assisting B cells in eradicating foreign infections. Antibodies are made by B cells. An antibody is a class of protein produced by B lymphocytes, sometimes known as B cells.
Therefore, the correct option is D.
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Which molecule is used up in photosynthesis?
A. Oxygen
B. Water
C. Nitrogen
D. Sugar
Much appreciated
Answer:
it's water
Explanation:
the plants take water from the ground and then use it in photosynthesis to create sugar.
Answer:
A/B is used up in photosynthesis.
Explain the characteristics scientists use when observing organisms and placing them in six kingdoms
Answer:
Classification of organisms is done while considering many factors such as:
Cell type- whether the organism is prokaryotic or eukaryotic
Cell structure- This includes both the presence and composition of the cell wall
Body type- whether the organism is multicellular or unicellular
Mode of nutrition- the method through which the organism achieves its nutritional requirement, by consuming other organisms (heterotroph) or making its own food (autotroph)
Explanation:
i beleve this is what you where asking :)
Punnett square for rr and rr parents
can someone please write one for me or show me different websites to help write one please
Answer:
One Act Example
Shakespeare, Clearly: Romeo and Juliet (one-act)
by Jon Jory
adapted from William Shakespeare
Drama
One-act. 30-35 minutes
8-30 actors
In Shakespeare's most well-known tragedy, two young star-crossed lovers’ deaths ultimately reconcile their feuding families. This straightforward adaptation mixing contemporary and classical language emphasizes story and character rather than the poetry. Master director and acclaimed playwright Jon Jory has reimagined the classic tale to serve as an early introduction for younger audiences and actors that allows easy involvement. Inventive yet faithful, this adaptation will inspire actors and audiences alike to revisit Shakespeare’s original texts. Gender-neutral casting is encouraged and doubling is possible. Simple stage allows for a fluid and forward moving production.
Procedure:
ONE ACT STRUCTURE
Set the Scene.
Introduce the character goal(s)
Introduce an obstacle to the achievement of the goal(s)
Introduce a disaster (the result of a twist if your story has one)
Let the character(s) react.
Resolve the story.
-Oct 17, 2017
Explanation: