How does the hydrogen concentration of a solution change when the pH shifts from 6 to 2? (4 points)
Answer:
the overall concentration of hydrogen ions is universely related to its PH and can be measured on the physical (figure 1). therefore, the more hydrogen ions present.
The hydrogen ion concentration of a solution increases when pH shifts from 6 to 2.
What is pH?a metric for determining how basic or acidic a substance or solution is. The pH scale ranges from 0 to 14. A pH value of 7 is considered neutral on this scale, meaning it is neither acidic nor basic. It is more acidic if the pH value is below 7, and more basic if the pH value is above 7.
Typically, a pH meter is used to measure pH, which converts the difference in electromotive force (electrical potential or voltage) between suitable electrodes put in the solution under test into pH measurements.
The different solutions have different pH based on the concentration of hydrogen ions. The concentration of hydrogen ions increases when pH shifts from 6 to 2.
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in the figure, which number represents dna synthesis?
The number that represents DNA synthesis in the figure would be II.
DNA synthesis happens at the S phase in the interphase of the cell cycle, just after the G1 or cell growth phase and before the G2 or protein synthesis phase.
During the S phase, the amount of DNA in the cell doubles as replication of DNA takes place. However, the number of chromosomes remains constant.
The doubling of the amount of DNA is responsible for the sharp rise in the line that represents the amount of DNA in the figure. Thus, the region of a steep rise in the amount of DNA would represent the DNA synthesis phase.
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1) What percentage of oxygen and carbondioxide inhaled and Exhaled Air ? ..
Answer:
21% of oxygen and 0.04% of carbon dioxide inhaled; 16.4% of oxygen and 4.4% of carbon dioxide, exhaled
Explanation:
The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.
Somoene please help and explain how to read the graph!!
Answer:
Whats going on is that you have a specific amount of enzyme that can do a specific amount of work. Think of it like a hotdog stand. the enzyme would be you and your substrats are your hot dogs and buns. You can only go as fast as the materials you have. If you have more materials than hands you can only go as fast as you can make them. To many substrates and you enzyme rate will cap out at maximum speed.
Explanation:
The plot shows rate of reaction of an enzyme as a function of the concentration of substrate. At stage B, the rate flattens and becomes constant, which means there's too much substrate for the enzyme to handle. So the fourth statement is false - the rate of reaction cannot be increasing.
one anatomical difference between cercopithecoids and hominoids is:
Answer:
Cercopithecoids have a narrow nose and palate, and smaller brains relative to body size than Hominoids
An Irish or white potato is a stem, but a sweet potato is a root. How can you tell?
Answer:
All stems have nodes, internodes, and axillary buds; these features distinguish them from roots and leaves, which do not have them. In Irish or white potato plants, several internodes at the tips of stolons become tubers.
Explanation:
What is a chemical property? Give 2 examples.
Answer:
Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize
Explanation:
8th grade science notes
The characteristic of a nerve cell that relates directly to its function in receiving and
transmitting nerve impulses is its
a. long extensions.
c. ability to change shape.
b. flat shape.
d. ability to engulf and destroy bacteria.
The axon is the long cytoplasmic extension and the dendrons are the short cytoplasmic extensions. The extensions are responsible for receiving and the transmission of the nerve impulses. Thus, the correct answer is option A. Hope it's helpful to you !
Explanation:
What is happening to the chromosomes in this phase of mitosis?
Answer: The answer is A
During mitosis (nuclear division), the chromosomes condense, the nuclear envelope of most cells breaks down, the cytoskeleton reorganizes to form the mitotic spindle, and the chromosomes move to opposite poles. Chromosome segregation is then usually followed by cell division (cytokinesis).
The cells in this leaf are making their own energy by the process of
a
respiration, where oxygen and sunlight at Q and R are taken in and then converted into carbon dioxide and glucose at S and T.
b
photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
c
photosynthesis, where glucose and oxygen at Q and R are taken in and then converted into water vapor and thermal energy at S and T.
d
respiration, where carbon dioxide and oxygen at Q and R are taken in and then converted into thermal energy and methane gas at S and T.
Answer:
B is the answer. Glucose and oxygen are given off during Photosynthesis
The cells in this leaf are making their own energy by the process of photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
In plants and algae, which developed much later, photosynthesis occurs in a specialized intracellular organelle—the chloroplast. Chloroplasts perform photosynthesis during the daylight hours. The immediate products of photosynthesis, NADPH and ATP.
Photosynthesis is critical for the existence of the vast majority of life on Earth. It is the way in which virtually all energy in the biosphere becomes available to living things.
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which cell is most likely to produce the highest number of proteins for export from the cell?
Answer:
Hola no puedo ayudarte bueno listo XD
Which statement describes a prokaryotic cell?
A.) An amoeba with a vacuole
B.) A blood cell from an animal
C.) A plant cell with chloroplasts
D.) A bacteria without a nucleus
Name two types of cells
Answer:
Animal cells and plant cells
cytokinesis in plant cells involves the formation of
Answer:
Cytokinesis in plant cells involves the formation of the insertion of a new cell wall that separates daughter nuclei after mitosis
Cytokinesis involves the formation of the insertion of a new cell wall that separates daughter nuclei and produce two new daughter cell.
What is cytokinesis ?It is the final stage in the cell cycle, when a new daughter cells is formed from parent cell through the splitting of the cytoplasm and the separation of the two identical cells.
In Stage 1 cleavage furrow is seen where the actin filaments will begin to tighten around the cells, spindle formation occur, t the chromosomes are divided evenly between the two nuclei. The spindle possesses small structures called astral microtubules guide the alignment of the actin filaments along the future cleavage furrow.
In Stage 2 the gathering of the actin filaments occur where some protein called myosin facilitates the pulling of the actin filaments, and formation of contractile ring begins.
In Stage 3 the myosin a motor protein with the help of ATP, it is able to contract the contractile ring, deepening the cleavage furrow, causing the cell to narrow in the middle as two daughter cells form.
In Stage 4 the actual breaking of the cell membrane and the membrane quickly refuses at the broken point and two independent and identical daughter cells are produced.
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What would result if the tonicity of the solution is not isotonic to the blood cells?
Answer:
The tonicity will result in the following: no net movement of water (isotonic), net flow of water out of a cell (hypertonic), or net flow of water into a cell (hypotonic). Two solutions that are isosmotic may not be isotonic. ... In the case of red blood cells, this is referred to as hemolysis (4).
Explanation:
How do your sensory organs help you to maintain homeostasis?
Answer:
Hi
Explanation:
“Sensory cues influence homeostasis by modulating hormone secretion. ... In step 1, sensory cues change the activity of sensory neurons. In step 2, the sensory information is processed and transmitted, which leads to step 3, where neuro- or nonneuronal endocrine cells secrete hormones required in maintaining homeostasis.”
Cellular respiration in plants does not require atmospheric oxygen because
Answer:
Oxygen produced during light reaction of photosynthesis is partially consumed during cellular respiration by plants and unconsumed oxygen is released in atmosphere. Thus plants produce oxygen in presence of light.
Answer:
it uses the oxygen generated in photosynethesis
Explanation:
Decomposers play an important role in the carbon cycle.
True
False
Answer:
true
decomposers break down organisms and return the carbon in their bodies to the atmosphere.
Which organisms live in the neritic zone?
A. anglerfish
B. chemosynthetic bacteria
C. phytoplankton
D. all of the above
How are solar cells used today?
Answer:The most commonly used solar technologies for homes and businesses are solar photovoltaics for electricity, passive solar design for space heating and cooling, and solar water heating.
Explanation: Solar cells can be arranged into large groupings called arrays. ... These arrays, composed of many thousands of individual cells, can function as central electric power stations, converting sunlight into electrical energy for distribution to industrial, commercial, and residential users.
Which evidence supports viruses being classified as living things?
O They are only made of proteins.
O They can enter cells.
They evolve over time.
O They spread between organisms.
Answer:
They are made up of protein.
Explanation:
Through out the cells life they all need protein to keep function.
when packaged in the virion, the complete complex of nucleic acid and protein is known as the virus
Answer:
nucleocapsid
Explanation:
(just trying to hit 20)
Which term best describe the ability of a living system to be restored through secondary ecological succession after a severe disturbance?
resilience
constancy
diversity
inertia
persistence
Answer:
resilience
Explanation:
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. i.e. Grassland can burn easily but recover quickly.
Answer:
Resilience: the ability to withstand adversity, destruction and to bounce back, to recover.
Explanation:
The diagram shows the structure of starch, a complex carbohydrate
Answer:
Glucose is monomer of starch
Explanation:
Starch is polysacheride and glucous is monosaccharide glucose molecules link with glycosidic bond to form starch so c is your answer
The biotic factors of the North American ecosystem that influence lodgepole pine populations are
Space, water, and climate all help determine a species population.
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What differences are there between heartwood and sapwood?
Answer:
Heartwood Sapwood
1 Cells are comparatively older. Cells are comparatively younger.
2 Also called as ‘Duramen’ Also called as ‘Alburnum’
3 Heartwood is dark colured Sapwood is light coloured.
what is the purpose of a conclusion
Answer:
To wrap up the entire writing, and bring it to, well, a conclusion. It usually states loud and clear what this writing means, and what it’s supposed to teach a reader, and kind of ties it all up. A loosely constructed conclusion makes it seem like there’s more, and that this can’t be it (This can be good for a sequel, however the opposite for most articles).
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WHICH RESERVOIR OF THE CARBON CYCLE CHANGES THE MOST AND THE QUICKEST?
(please helpp)
the ocean is the reservoir that changes the most and the quickest
The reservoir of the carbon cycle that changes the most and the fastest is the atmosphere, as the atmospheric carbon pool changes due to the constant release of carbon dioxide through household sources and cellular respiration.
What is the significance of the carbon pool?The carbon pool maintains the carbon ratios in the earth, as the atmosphere is the reservoir of the carbon cycle that changes the most and quickest due to burning fossil fuels, usage of household electric appliances, usage of more vehicles that release carbon dioxide, deforestation, etc. If the carbon pool is not maintained and becomes uncontrolled, the environment will be harmed due to global warming, etc.
Hence, the reservoir of the carbon cycle that changes the most and the fastest is the atmosphere, as the atmospheric carbon pool changes due to the constant release of carbon dioxide through household sources and cellular respiration.
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Observe the model below. Explain one strength(advantage) of the model and one limitation ( disadvantage) of the model
answer ASAP
As to the model of the different types of saccharides displayed, we can name its efficiency as a clear strength, and its lack of more examples as a limitation.
Using models to display information can be advantageous in that they allow the user to visualize something that may otherwise be difficult to picture. This increases memory retention and increases learning.
One example of a strength displayed by this model is its efficiency. By this, I mean that the model provides a clear and easy way to compare the differences in structure between the types of saccharides by positioning them all onto the same page, near one another enough to make quick and easy comparisons.
The noticeable limitation of the model, however, is its lack of further examples. The model in question shows a single example for each type of saccharide, limiting the user's knowledge to the difference between the types only. After using this model, the user will still lack information as to how saccharides of the same type can vary from one another.
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EMERGENCY HELP FAST!!
Fats and oils are esters. They contain a ____ group.