Answer:
The mass of hydrogen peroxide, H2O2 would be calculated like this: H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it. So one molecule of hydrogen peroxide weighs in at 34.02 u.
Explanation:
pretty self explanatory.
Shane chose a nonfiction book about styles of dress during the 1920s. It contained factual stories, information, and pictures of people and wardrobes during the time period. What was most likely Shane’s purpose for choosing the text?
A.to read a funny story
B.to discover something new
C.to find out how to make something
D.to find out what people think about the past
Answer:
I think it’s A
Explanation:
If it’s wrong I’m sorry
Answer:its A 100%
Explanation:
A.to read a funny story
B.to discover something new
C.to find out how to make something
D.to find out what people think about the past
PLEASE HELP ME
What roles do photosynthesis and respiration play in
the distribution of gases in seawater?
The Kinetic Molecular Theory explains the movement and overall behavior of gases. A scientist claims to have found evidence
which requires a different explanation. What would a committee evaluating thescientist's claim MOST LIKLEY do first?
A. Add the idea onto the present theory.
B. Ask the scientist to conduct further research.
C. Experiment to see if similar results are observed.
D. Reject the idea because theories cannot be changed
Answer: C
Explanation:
How are the molecules in photosynthesis and cellular respiration similar?
The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart
If you are standing on a beach, why might you feel an ocean breeze during the day?
Answer:
cause at night it's so cold especially where I stay
Which statement best describes the relationship that exists among proteins, DNA, and cells?
A Proteins are made up of DNA, which determines the cells that are produced.
B Cells contain DNA, which controls the production of proteins.
C Proteins combine to produce cells, which produce DNA.
D DNA is made up of proteins, which tell a cell how to function.
Answer: cells contain DNA, which controls the production of proteins
Explanation:
The statement best describes the relationship that exists among proteins, DNA, and cells - B. Cells contain DNA, which controls the production of proteins.
A cell contains DNA that produces proteins
A cell has many substances and organelles present in it, that all have specific functions in the cell. DNA is the hereditary unit of the cell that contains genetic information about growth, development, and reproduction.
DNA helps in synthesizing protein by a two-step process called protein synthesis. The first step called transcription involves copying the instruction from DNA into an mRNA sequence and the second is producing an aminoacid chain by translating the mRNA sequence.
Learn more about Realtion among protein and cell:
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what is the process of protein denaturation?
1) is usually temporary and reversible
2) changes the form of a protein, but not it’s function
3) is only possible in proteins with quaternary structure
4) is usually permanent and irreversible
Answer:
4) Is usually permanent and irreversible.
Explanation:
Protein denaturation is when you modify the molecular structure of the protein, which breaks weak links (such as hydrogen bonds). Alters shape of protein through some processes such as applying heat, acids, alkali, etc.
Your airways are coated with a thin layer of liquid called ASL and a mucus gel layer, both which neutralize foreign particles to prevent infection. In people with
Cystic Fibrosis, a gene has an error, which causes the cells of the airways (lungs, etc) to have defective plasma membranes The ASL and mucus are much
thicker than usual near the defective cells, causing a lot of lung congestion because the defective cells allow too much salt into the cells Why would allowing too much salt into the cells create thicker ASL and mucus?
À. The increased salt in the cells makes the person thirsty, leading to thickened ASL and mucus in the lungs
B. The increased salt in the cells causes water from the airways to move into the cells by osmosis, thickening the ASL and mucus in the lungs.
C. The increased salt in the cells causes water from the cells to move into the airways, thickening the ASL and mucus in the lungs
D. The increased salt in the cells is absorbed by the cytoplasm of the cell causing water to leave the cells and enter the lungs,
Answer:
d
Explanation:
In most cases, mutations in the core of a protein that replace a smaller nonpolar side chain in the wild-type (e.g., Ala, Val) with a larger nonpolar side chain (e.g., Leu, Ile, Phe, Trp) in the mutant, result in significant destabilization and misfolding of the mutant. What feature of the protein core explains this observation? Why would such a mutation prevent a protein from folding properly? Match the items in the left column to the appropriate blanks in the sentences on the right.
Explanation:
we are required to fill in the blank spaces in the attachment.
protein side chains are non polar. so the first answer is non polar. These side chains are hydrophobic in nature. so the second blank is hydrophobic. Non polar substances are known to have large number of van der waal forces. the third answer is large and the fourth is vanderwaals contact. the protein core destabilizes only when there is a weakening of vanderwaals contact which brings about mutation.
dear user your answer should look like this:
Interactions of non polar side chains in protein sequence lead to the formation of a tightly packed hydrophobic core. This core is stabilized by a large number of vanderwaals contact. When a mutation occurs, it destabilizes the protein core and weakens vanderwaals contact leading to misfolding
Typical minerals in Felsic igneous rocks are?
Answer:
Feldspar, K-feldspar, quartz, biotite, hornblende, and some other I believe.
Explanation:
Carbohydrate, Protein, and Fat Digestive Enzymes A key objective in this chapter is to identify the major enzymes in the digestion of carbohydrates, proteins, and fats as well as the organs that secrete them. This activity requires you to match the enzyme with the secreting organ. Drag the names of the enzymes to their respective bins, representing the appropriate secreting organ. Some organs secrete more than one enzyme. 1. pancreatic amylase2. pepsin3. salvary amylase4. gastnc lipase 5. pancreatic lipase6. trypsin 7. chymotrypsin8. carboxypeptidaseA. Salivary Glands B. Stomach C. Pancreas D. Small Intestine
Answer:
its C
Explanation:
The following enzymes are secreted by the organs listed below:
Salivary glands: salivary amylaseStomach: pepsinPancreas: pancreatic amylase, pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSmall intestine: pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSalivary amylase enzyme is secreted by the salivary glands and breaks down starch into maltose. Pepsin enzyme is secreted by the stomach and breaks down proteins into smaller polypeptides. Pancreatic amylase enzyme is secreted by the pancreas and breaks down starch into maltose. Gastric lipase enzyme is secreted by the stomach and breaks down fats into fatty acids and glycerol.
Pancreatic lipase enzyme is secreted by the pancreas and breaks down fats into fatty acids and glycerol. Trypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Chymotrypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Carboxypeptidase enzyme is secreted by the pancreas and breaks down polypeptides into amino acids.
To know more about the Carbohydrate, here
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Are seasonal responses in plants triggered by temperature or by length of daylight
Answer:
Plants don't have sensation of time, at least that we know till now. However plants have different stimuli against the different environmental change i.e lack of water causing yellow and fall of leaves. Such seasonal responses are reaction to environmental changes rather than timeline.
For and experiment to produce useful data what must happen
Answer:
It must be repeated several times
Explanation:
Diego said that some plants can be grown from stem cuttings, but Jay disagrees. Who do you agree with and why?
Answer:
I gree with Diego
Explanation:
Because there's what we call drafting to improve on plant yields.
Students will identify/understand the Earth’s Atmosphere.
Please help, it’s due today!
Write three paragraphs explaining the atmosphere and layers make up the atmosphere.
Answer:
The atmosphere of Earth is the layer of gases, commonly known as air, retained by Earth's gravity, surrounding the planet Earth and forming its planetary atmosphere.
brainscape: Restriction enzymes: A) act at the membrane to restrict the passage of certain molecules into the cell. B) are highly specialized ribonucleases that degrade mRNA soon after its synthesis. C) are sequence-specific DNA endonucleases. D) are very specific proteases that cleave peptides at only certain sequences. E) catalyze the addition of a certain amino acid to a specific tRNA. c The biological role of restriction enzymes is to: A) aid recombinant DNA research. B) degrade foreign DNA that enters a bacterium. C) make bacteria resistant to antibiotics. D) restrict the damage to DNA by ultraviolet light. E) restrict the size of DNA in certain bacteria.
Answer:
C) are sequence-specific DNA endonucleases
B) degrade foreign DNA that enters a bacterium.
Explanation:
Restriction enzymes are the proteins that cut the DNA at a specific sequence.
Restriction enzymes are also known as restriction endonuclease produced by bacteria that recognizes a specific sequence on DNA and split it by catalyzing the hydrolysis or addition of water molecule. So, Restriction enzymes are sequence-specific DNA endonucleases.
The biological role of restriction enzymes is to restrict the entry of foreign DNA into the bacterium. Restriction enzymes have the ability to restrict the number of bacteriophage strains that affect bacteria.
Hence, the correct options are "C and B"
59:33
Which best describes thermal energy?
It is the difference between internal energies of two or more substances.
It is the sum of internal energies of two or more substances.
It is the portion of internal energy that can be transferred from one substance to another.
It is the portion of potential energy that can be transferred from one substance to another
Answer: The correct answer is (B.-It is the sum of internal energies of two or more substances.)
which event contributed to life evolving on Earth
Answer:natural selection
Explanation:
Explain how we know organisms evolved, beginning with how complex molecules were first created. At which point must science speculate about how life began? Why is that? Do you think we will ever figure out the missing clues?
Answer:
Untangling the origins of organisms will require experiments at the tiniest ... as scientists are hoping to discover, the path to it cannot be so hard. ... To understand how life might begin, we first have to figure out ... Some scientists think that life originally used simpler molecules and only later evolved RNA.
Explanation:
yes
brainliest plz
Answer:
oof dis is like a whole essay if we anwsered this
Explanation:
Digestion of food and batteries are an example of which type of energy?
A. Chemical
B. Kinetic
C. Heat
D. Electrical
i searched up tim and moby fan art. my eyes did not like what i saw.
Answer:
do tell, what did you see?
what are 15 things we get from plants?
Answer:
Fruits, vegetables, spices, cereals, Wood, Fibres, Cotton, perfumes, dyes, and most importantly medicines.
Explanation:
Plants play a major role in the preparation of several useful drugs and antibiotics.
Why are bacteria such as Rhizobium and cyanobacteria so important in the
nitrogen cycle?
A. They return nitrogen gas to air
B. They fix atmospheric nitrogen gas for the food chain
C. They decompose dead plants and animals
D. They build protein in plants
Answer:A. They return nitrogen gas to air
Explanation:
Answer:
The correct answer is B
Explanation:
Got it correct on GAVS..
1. ____________ takes place in organelles called chloroplasts.
2. Light energy is captured by the green pigment ____________
3. Cells use oxygen to release energy during ___________
Answer: Photosynthesis
Explanation:
Answer:
Explanation:
Cells get nutrients from their environment, but where do those nutrients come from? Virtually all organic material on Earth has been produced by cells that convert energy from the Sun into energy-containing macromolecules. This process, called photosynthesis, is essential to the global carbon cycle and organisms that conduct photosynthesis represent the lowest level in most food chains (Figure 1).
Which of the following best describes the formation of the bond shown in Figure 1 ?
А
An ionic bond is formed between a carbon atom of one amino acid and the nitrogen atom of the other amino acid,
B
An ionic bond is formed when the negative charge of an OH group is balanced by the positive charge of a hydrogen ion.
с
A covalent bond is formed between a carbon atom and a nitrogen atom along with the formation of H2O
D
A covalent bond is formed that replaces the hydrogen bond between the OH group and the H atom,
Answer: it is c, a covalent bond
Explanation:
ILL gIVE BRAINLY!
Asian Tsunami: A few ecosystems that live in the ocean. Because, they would still be in the ocean.
5.
6. What are some positive effects of a rapid change to an ecosystem?
7. What are some positive effects of a slow change to an ecosystem?
Answer:
Explanation:
5. "Although there is some disagreement, several types of marine ecosystems are largely agreed on: estuaries, salt marshes, mangrove forests, coral reefs, the open ocean, and the deep-sea ocean. An estuary is a coastal zone where oceans meets rivers."
6. "the ecosystem is changing making it easier for people to live"
7. "A positive effect would be the organism getting the right amount of nutrients if the ecosystem went fast everything would happen so fast that the ecosystem won't turn out right and the fast change with case the wrong amount of nutrients from the change happening so fast."
PLEASE HELP WILL GIVE CROWN
Answer:
C E A hope it helps
Explanation:
Which of the samples shown below are eukaryotic?
Answer:
Eukaryotic cells look like little medicine caplets.
Explanation:
I hope right the answers please Mark please brainlist
Choose all the answers that apply.
The troposphere is _____.
1. the warmest layer
2. responsible for weather and clouds
3. the coldest layer
4. warmed by the Earth's surface
5. the lowest layer
You can choose multiple answers
Answer:
The troposphere is the lowest layer
Explanation:
hope this helps!! there could be more that are right I'm just not sure so
Answer:
The answer is 2.responsible for weather and clouds
Explanation:
which one of the following is not an organic compound
CaO i think, hoped that helped