What accounts for water's properties of adhesion and cohesion? The polar nature of water and the effects of hydrogen bonding
Adhesion is the tendency of dissimilar particles to cling to one another. While the cohesion is the grammatical and lexical linking within a sentence that holds the text together and gives the meaning. Cohesive forces are the intermolecular forces which cause a tendency in liquids to resist separation. The example of intermolecular forces are hydrogen bonding and Van der Waals forces. The differences between adhesion and cohesion are in adhesion, the molecules of different substances stick together and in cohesion, the molecules stick to each other
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance. There are five main properties of water such as:
What accounts for water's properties of adhesion and cohesion is the polar nature of water and the effects of hydrogen bonding
Grade: 9
Subject: biology
Chapter: water's properties
Keywords: water's properties, adhesion, cohesion, water, accounts
The bonding between the hydrogen atom and the polar nature of the water account for adhesion and cohesion characteristics of water.
Further Explanation:
The water molecules have two hydrogen atoms attached to an oxygen atom by a polar covalent bond. Carbon has an electronegativity of 2.55, which is very close to the electronegativity of hydrogen (2.20). Water is a good solvent because it is a polar molecule (polarity of a molecule is the separation of electric charge result to a molecule consisting of an “electric dipole moment” through a positively charged end and negatively charged end). The oxygen atom in the water molecule is more electronegative (tendency to attract electrons, as they are electron deficient.), while hydrogen molecule is electropositive as compared to the oxygen.
Due to this electronegativity difference, the shared pair of electrons is prominently pulled towards the oxygen atom, giving the atom a partially negative charge, and the hydrogen atoms a partially positive charge. The polarity of water is accountable for the “cohesion and adhesion” characteristics of water.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Water
Keywords:
Water, electronegative, oxygen, atom, negative charge, carbon, electron, tendency, hydrogen, positive charge, polar covalent bond.
B. bipolar disorder.
C. a dissociative disorder.
D. schizophrenia.
Answer:
d. schizophrenia
Explanation:
This is a mental disorder, is combination of genetics, environmental conditions and the disorder or chemical brain substances.
Some of it characteristics is that the people suffer from changes in personality, hallucinations and lost of sense of the reality.
It can just be controlled but not cure.
The alveoli are surrounded by blood vessels carrying blood to and from the heart.
C) blood vessels
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b. solids, liquids, and gases
c. solids and liquids
d. solids and gases
Answer: b. solids, liquids, and gases
Explanation:
A soil is a mixture of solids, liquids and gases. The solids are in the form of coarse to fine sediments which are added up to the soil by the weathering of the parent rocks. The liquids are in the form of water which adds up in the soil through the tiny pores by sources like river, rainfall, oceans and others. The gases such as carbon dioxide, oxygen, nitrogen oxides diffuse into the soil through tiny pores these are essential for the growth of plants and soil microorganisms.
B)Mitosis
C)Fertilization
D)Differentiation
The inability of sperm cells to move normally could prevent the production of offspring by interfering with fertilization, which is present in Option C, as fertilization is the fusion of the male and female pronuclei to form a zygote.
In sexual reproduction, fertilization is important as it is the fusion of the sperm and the ovum and forms a unique individual with a unique genetic makeup and allows for genetic diversity, which increases the rate of survival in the case of any genetic disease. Fertilization aids in adaptation because sexual reproduction results in a new, distinct type of genetic recombination that may be better suited to the changing environment.
Hence, the inability of sperm cells to move normally could prevent the production of offspring by interfering with fertilization, which is present in Option C, as fertilization is the fusion of the male and female pronuclei to form a zygote.
Learn more about fertilization in the zygote here.
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Answer:
The two processes that fuel the carbon cycle are photosynthesis and cellular respiration.
Photosynthesis is the process by which carbon obtained from carbon dioxide (atmosphere) is fixed into the biomass (glucose or food).
This food or carbon content is then passed to animals through the food chain and to fossil fuels through decomposition.
This food or carbon content is then used by cellular respiration which releases carbon dioxide back into the atmosphere.
In addition, the burning of fossil fuels also releases carbon dioxide back into the atmosphere.
b-The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites.
c-The zygote of Plasmodium multiples in human liver cells forming the merozoites, whereas when merozoites multiply in the gut of a mosquito, they form spores called sporozoites.
Answer:
The answer is B: "The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites."
Explanation:
In Plasmodium, for example, the sporozoites are cells that produce in the mosquito's salivary glands, leave the mosquito during a blood meal, and drive liver cells (hepatocytes), where they generate. Cells infected with sporozoites ultimately burst, delivering merozoites into the bloodstream. Merozoites are non-motile.A merozoite is a daughter cell of a protozoan parasite. Merozoites are the consequence of asexual propagation. Sporozoites are designed by sporogony, a type of sexual or asexual reproduction by multiple fission of a spore or zygote, representative of many sporozoans.
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