In the lung alveoli, the oxygen partial pressure is about 100 mm of mercury, or 0.13 Atm. If blood was solely composed of a saline solution (lacking any hemoglobin), oxygen equilibrates with the alveolar air to a concentration of about 3 mg/L or 0.093 mm). In oxygen-saturated blood, however, the O2 concentration is about 0.008 M (8 mm).

Required:
a. What is the Henry's Law constant for oxygen in saline?
b. What is the Henry's Law constant for oxygen in blood?
c. How much does the presence of hemoglobin enhance oxygen solubility in blood (i.e. what is the ratio in blood vs saline)?

The correct answer is A and B

Answer:

Oxygen is carried by blood to all the cells of the body in the form of haemoglobin.​

Explanation:

Oxygen is carried in the blood in two forms:

(1) dissolved in plasma and red blood cells water (about 2% of the total)

(2) reversibly bound to haemoglobin (about 98% of the total).

Haemoglobin is a protein in the red blood cells and carries oxygen around our bodies. At the same time, carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out.

neurotransmitters are often reffered to as the body's chemical messangers. They are the molecules used by the nervus system to transmit messages between neurones, or from neurones to muscles. Communication between two neurones happens in the synaptic cleft (the small gap between the synapses of neurones).

Answer:

Células fotorreceptoras: Son los conos y los bastones. Transforman los impulsos luminosos en señales eléctricas.

Células bipolares de la retina. Conectan las células fotorreceptoras con las células ganglionares.

Células amacrinas. ...

Células horizontales. ...

Células ganglionares de la retina.

Explanation:

Sir/Miss,

Perhaps the most persuasive fossil evidence for evolution is the consistency of the sequence of fossils from early to recent. Nowhere on Earth do we find, for example, mammals in Devonian (the age of fishes) strata, or human fossils coexisting with dinosaur remains.

Answer:

No

Why not:

The midpoint of range is 3000. Yes, in from 1950-1955 there was a massive increase of the population of chipmunks but from then on it slowly decreased until 1990. In 1995, the population doubled from 1990. If you double 1440, you will get 2880. The biologist said between 2900-3100, using the midpoint of this range (3000) it is too low therefore being a bit unreasonable.

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Explanation:

The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

Answer :Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed. Your large intestine absorbs water, and the waste products of digestion become stool. Nerves and hormones help control the digestive process.

Answer:

at what location? the question isnt finished

Answer:

Humans affect biodiversity by their population numbers, use of land, and their lifestyles, causing damage to habitats for species. Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.

Explanation:

Human population levels, land usage, and lifestyles all have an impact on biodiversity, causing damage to species' habitats. The human population will be able to maintain life on Earth for longer if adequate knowledge is provided and governments are forced to make decisions that protect biodiversity.

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Answer:

Carbon dioxide and Chlorophyll

In order for the elodea leaves to photosynthesize need to light and both Carbon dioxide and Water

Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy.

During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

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Answer: Pyruvate would increase, NADH would decrease, and intermembrane H+ would decrease as well.

Explanation:

Glycolysis would raise pyruvate, but the Krebs Cycle would not produce NADH, decreasing it. No protons (H+) will be pushed into the intermembrane gap, lowering its H+ content and raising its pH.

The tricarboxylic acid (TCA) cycle, commonly referred to as the Krebs cycle or the citric acid cycle, is the primary route that cells use in order to acquire energy and is an essential component of aerobic respiration. The cycle transforms the oxidative potential of acetyl coenzyme A (acetyl CoA) into the reductive potential of nicotinamide adenine dinucleotide (NADH).

The synthesis of ATP via the Krebs cycle is disrupted when arsenic is present because it prevents pyruvate from being converted into acetyl coenzyme A (acetyl-CoA). In addition to the effects described above, arsenic also prevents glucose uptake at the cellular level, as well as gluconeogenesis, the oxidation of fatty acids, and additional acetyl-CoA formation.

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Answer:

D

Explanation:

From the information given:

Association rate [tex]K_a[/tex] = [tex]8.9 \times 10^3 M^{-1}s^{-1}[/tex]

dissociation constant [tex]K_D[/tex] = 10 nM

dissociation rate [tex]K_d[/tex] = ???

Using the following relation from equilibrium dissociation constant to determine the dissociation rate, we have:

[tex]K_D =\dfrac{ K_d}{K_a}[/tex]

[tex]K_d = K_D \times K_a[/tex]

[tex]K_d =(10*10^{-9} \ M) \times (8.9*10^3 \ M^{-1}{s^{-1})[/tex]

[tex]\mathbf{K_d =8.9*10^{-5} \ {s^{-1}}}[/tex]

Answer:

The correct answer is: They remain in the cytosol.

Explanation:

Eukaryotic proteins are made through a process called Translation, which always starts at the cytosol (except for the proteins that are made in the mitochondria).

While Translation is taking place, the peptide that is being synthesized is checked for molecular tags that will lead to a re-routing to another destination: proteins that have an amino sequence called 'signal peptide' will be sent to the endoplasmic reticulum for its translation to continue - the proteins that go this route are meant to be part of the endomembrane system, after that they can be bounded to the ER, the Golgi apparatus or the lysosomes.

Unlike the proteins mentioned before, there are proteins that will have no signal peptide - this means that they are meant to finish Translation in the cytosol. Some of these proteins will acquire a signal tag that will lead them to the nucleus or the mitochondria, for example, but if they don't they will stay permanently in the cytosol to perform their tasks in that place.

Answer:

(I) Lamarckism or Theory of Inheritance of Acquired characters.

This theory is based on the comparison between the contemporary species of Jean Baptiste de Lamarck's time to fossil records.

(II) Darwinism or Theory of Natural Selection.

Charles Darwin made an extensive study of nature for over 20 years, especially in 1831-1836 when he went on a voyage on the famous ship “H.M.S. Beagle” and explored South America, the Galapagos Islands and other islands.

(III) Mutation theory of De Vries.

The mutation theory of evolution was proposed by a Dutch botanist, Hugo de Vries (1848-1935 A.D.) in 1901 A.D. in his book entitled “Species and Varieties, Their Origin by Mutation”. He worked on evening primrose (Oenothera lamarckiana).

(IV) Neo-Darwinism or Modern concept or Synthetic theory of evolution.

The detailed studies of Lamarckism, Darwinism and Mutation theory of evolution showed that no single theory is fully satisfactory. Neo-Darwinism is a modified version of theory of Natural Selection and is a sort of reconciliation between Darwin’s and de Vries theories.

All living things are made up of cells. Cells are the basic unit of a living organism and where all life processes are carried out.

Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.

Plant cells have three extra components, a vacuole, chloroplast and a cell wall.

Answer:

The correct answer is - 12.1.

Explanation:

In the case of the same isoelectric point of protein and the pH value of the solution, it is the only condition when aggregation of proteins takes place.

When there is intrinsically disordered proteins or misfolded proteins aggregates known as the protein aggregate. So for the first aggregation takes place at pH= 12.1.

Answer:

(a) Microfilaments

(b) Microtubules

(c) Microtubules

(d) Microfilaments

(e) Intermediate filaments

(f) Microfilaments, intermediate filaments, microtubules

(g) Microfilaments, microtubules

(h) Microfilaments, intermediate filaments, microtubules

(i) Microtubules, microfilaments

(j) Microtubules

Explanation:

Microtubules (MTs) are dimers of the protein tubulin (alpha- and beta-tubulin subunits) and they are major components of the cytoskeleton. MTs play diverse cellular roles including, mechanical support (cytoskeleton), transport, motility, chromosome segregation, etc. Microfilaments (MFs) are protein filaments that also form part of the cytoskeleton in eukaryotic cells. MFs consist of G-actin monomers assembled in linear actin polymers, and their functions include mechanical support, cytokinesis, changes in cell shape, amoeboid movement, endocytosis and exocytosis, etc. MFs associate with the protein myosin to generate muscle contractions. Actin filaments/MTs assembly from monomeric actin/tubulin is caused due to energy expenditure, where ATP/GTP bound to actin/tubulin is hydrolyzed during polymerization. Finally, intermediate filaments (IFs) are a type of cytoskeletal element composed of a heterogeneous group of structural elements, and they are not found in all eukaryotes. The primary function of the IFs is to contribute to the mechanical support for the plasma membrane where these filaments come into contact with other cells and/or with the extracellular matrix. The IFs are not directly involved in cell movement. All 3 types of cytoskeletal elements (microfilaments, intermediate filaments, microtubules) can be visualized by fluorescence microscopy when cells express chimeric MT/IF/MF.–GFP fusion proteins.

Explanation:

I think this is the answer i try to do it

Answer:

steel plate

Explanation:

steel plate have lustre because steel is coated with zinc.

Answer:

Igneous rocks:

-They are formed when liquid magma cools and solidifies beneath or above Earth’s surface.

Sedimentary rocks:

-They are a result if weathering and lithification, which is often aided by the flow of water.

Metamorphic rocks:

-They are molded by heat and pressure deep inside Earth.

-The heat comes from magma.

-Pressure is exerted by the motion of Earth’s plates and the weight of other rocks.

Explanation:

These are all I can do. You gave 5 sentence choices right? Hope this helps!

Answer:

The answer is Igneous rocks, Metamorphic rocks, and Sedimentary rocks

Explanation:

Answer:

Tibia and fibula. Tibia (medial bone)

Explanation:

The tibia is the medial bone of the lower leg (it is the second-largest bone next to the femur), whereas the fibula is the lateral bone of the lower leg. The tibia functions to transmit the majority of the force in the lower leg. The tibia articulates at the proximal end with the femur and fibula; where this bone (tibia) articulates at the distal end with the fibula and the talus bone of the ankle. The tibia and fibula are connected via an interosseous membrane, which is a thin sheet of connective tissue that spans the space between two bones.

Answer:

To make copies of themselves they necessarily need the intervention of a cell. Therefore, viruses are not living beings. That is why they are not included in any Kingdom in which living beings are included

Answer:

cell wall

mitochondria

chloroplast

The cell membrane is a flexible cellular boundary, respiration takes place in mitochondria, and photosynthesis in the chloroplast.

An organelle is a subcellular structure that, like an organ in the body, has one or more specific tasks to carry out within the cell. The nucleus, which houses genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the more significant cell organelles.

The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are among the organelles found in animal cells. Despite not being protected by a membrane, ribosomes are frequently referred to as organelles in eukaryotic cells.

Thus, the cell is covered by a flexible cell membrane. Mitochondria is a site of cellular respiration, while chloroplast is a site of photosynthesis.

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Answer:

1.Comm ercial Value- money made from wildlife and fish.

2.G ame Value- Value of wildlife as g ame.

3.Aesthetic Value- Value of wildlife for it's b b eauty and ple asure.

4.Scientific Value- Value placed on the study and res earch of wildlife.

5.they provides us food , clothing and source of income 

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Water is a source that is used for various purposes. The industry overuses the surface water, whereas agriculture overuses the groundwater leading to water scarcity. Thus, option C is correct.

Water scarcity is the unavailability of water or can be said as a shortage of water through the regular supplies due to the overuse and excess waste of these resources.

The lack of sufficient amount of water that has been said to be not equal to the demand is a major issue that affects every organism globally. It can lead to economic decline as there will be drought.

Water is used in various fields including the industries for machines and other works, and also in agriculture fields to grow plants and crops. The industry uses the water present on the surfaces like lakes, and rivers, while crops need the water from the wells.

Therefore, option C. the industry and agriculture overuse water.

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Answer:

Spindle fibers are a type of protein that splits a cell's genetic material. During both kinds of nuclear division, mitosis and meiosis, the spindle is required to evenly divide the chromosomes in a mother cell into two daughter cells. The spindle fibers are referred to as the mitotic spindle during mitosis.

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Answer:

D. A silent variant near the 5' end of the TBX1 gene.

Explanation:

TBX1 gene is wild type human being. It gives instructions for making protein called T-box 1. It plays an important role in tissue formation and organs during embryonic development.