Hypothesis for an onion lab report (hypotonic)


Purpose: The goal is to get knowledge of some of a cell's basic building blocks and to look into onion cell structure. Additionally, the aim of this experiment is to examine the appearance of an onion skin cell in a hypotonic solution under a microscope.


You have had some practice using the compound light microscope to view a variety of objects. Now you are ready to prepare your own slide of the plant cell under isotonic and hypotonic solution, and view it using the compound light microscope. From learning about diffusion and osmosis, you know that plant and animal cells are filled with cytoplasm, which is a jelly-like fluid that consists of water and solutes (salts, sugars, carbon dioxide, fat droplets, etc). Cells are surrounded by extracellular fluid, which also consists of water and solutes. The balance between the water and solutes in the cytoplasm and extracellular fluid is achieved through the process of diffusion and osmosis. In this lab, you will find out what happens to onion cells when they are placed in a hypotonic or hypertonic solution.


Create a hypothesis using this information.

This species most likely belong to the animal kingdom, because it is multicellular with no cell wall. The correct option is D.

Organisms in the kingdom Animalia are multicellular, eukaryotic (organisms with a genuine nucleus), and cell-wall-free organisms.

The species may be a plant or a fungus if the cell had a cell wall, but as it lacks one, it is an animal. Animals come in a variety of shapes and hues, and inside their cells are several organelles that carry out vital survival-related tasks.

Therefore, the correct option is D. animals, because it is multicellular with no cell wall

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The question is incomplete. The complete question is given below:

A scientist found a new species in a rain forest. The species was small and green in color. She examined one of its many cells and found that the cell had a nucleus but no cell wall.

To which kingdom does this species most likely belong?

plants, because it is green and small

bacteria, because it is small and has a nucleus

fungi, because it is green and has no cell wall

animals, because it is multicellular with no cell wall

The algae in the salt marsh are very efficient in their use of the solar radiation they receive.

Solar radiation is the energy emitted by the sun in the form of electromagnetic waves. These waves consist of visible light, infrared radiation, and ultraviolet radiation. Solar radiation is important for life on Earth as it provides the energy for photosynthesis and drives the water cycle.

The amount of solar radiation reaching the ground in a salt marsh in Agusan during the summer is 7,000,000cal/m2/day. This energy is used by the producers (microscopic algae) to photosynthesize and produce organic matter. The gross primary productivity (GPP) of the producers in the salt marsh is 0.0040 g/cm2/day. This means that the algae are able to produce 0.0040 grams of organic matter per square centimetre of salt marsh every day.
The respiration requirement for the algae is 35% of the GPP. This means that in order for the algae to survive, they must use 35% of the GPP for respiration. This leaves 65% of the GPP to be used for growth and other metabolic needs.
Finally, ecologists have found that 1 gram of salt marsh producers (the algae) is equivalent to 2,920 calories. This means that 1 gram of algae in the salt marsh contains enough energy to provide 2,920 calories. This indicates that the algae in the salt marsh are very efficient in their use of the solar radiation they receive.

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sandy soil is not ideal for growing plants in the Space Station because it lacks the necessary nutrients, water retention, and aeration for plant growth.

Sandy soil is a type of soil that is characterized by its large particle size and low water-holding capacity. It is comprised mostly of sand particles, which are large and do not retain water well, causing the soil to drain quickly and not retain moisture for very long.

This type of soil is often dry and warm, and can be difficult to cultivate, as it does not retain nutrients well and plants can have a hard time taking root. Because of these characteristics, sandy soil is not ideal for growing most types of plants, as they require a consistent and sufficient supply of water and nutrients to thrive.

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Answer: Option A is the correct answer

Explanation: A. The United States should encourage the United Nations to help reduce population growth rates in developing nations because doing so will help get the global population size closer to the planet's carrying capacity.

Answer:

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Explanation:

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The diagram shows a constructive interference because the two waves overlap and their crests combine to form a larger wave that continues on in the opposite direction.

Constructive interference is a type of wave behavior that occurs when two or more waves combine in such a way as to reinforce each other, resulting in a wave with a greater amplitude (height) than the individual waves. This occurs when the waves are "in phase" with each other, meaning that the crests and troughs of the waves align precisely.

In other words, constructive interference occurs when the waves are "in sync" and reinforce each other, producing a wave that is stronger than any of the individual waves.

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Answer:

Animalia; Eukarya

Explanation:

Answer:

. Eukarya; Animalia Eukaryotic cells are found in organisms of the domain Eukarya. These individuals are also Animalia kingdom representatives.

Explanation:

A domain is a more expansive category than a kingdom. There are three domains in this system: domain Bacteria (which corresponds to domain Eubacteria), domain Archaea (which corresponds to kingdom Archaebacteria), and domain Eukarya (which corresponds to kingdoms Fungi, Plantae, Animalia, and kingdom "Protista").

All of the following could be products of hydrolysis except: A steroid, option B.

Hydrolysis is a chemical reaction in which water is used to break apart a larger molecule into two smaller molecules. The water molecule is split into a hydrogen ion (H+) and a hydroxide ion (OH-), and these ions participate in the reaction by attacking the bonds in the larger molecule.

Steroids are not typically broken down by hydrolysis, as they do not contain any hydrolysable bonds. A nucleotide, glucose, a disaccharide, and an amino acid can all be products of hydrolysis reactions, depending on the starting molecule and the type of hydrolysis reaction being performed.

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The complete question is:

All of the following could be products of hydrolysis except:

A a nucleotide  B. a steroid C glucose D a disaccharide E an amino acid

A mutation that changes information in a gene responsible for the production of a protein, could result in the production of another protein or make the gene produce no protein at all.

A biological mutation is an alteration to the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Mistakes in DNA replication, viral replication, mitosis, meiosis, or other sorts of DNA damage that may then be repaired in a mistake-prone way result in mutations (especially microhomology-mediated end joining)

A mutation may or may not have an impact on the phenotype—the observable characteristics—of an organism. Among the healthy and unhealthy biological processes in which mutations participate are evolution, cancer, and the maturation of the immune system, including junctional variation. Mutation is the source of all genetic variation, and it also serves as the rationale for the operation of evolutionary forces like natural selection.

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This is known as enzyme specificity. Enzymes are proteins that have specific structures that allow them to bind to one particular substrate, or reactant, and catalyze a reaction that produces a specific product.

Enzymes are proteins that act as catalysts in biochemical reactions. They accelerate specific biochemical reactions by reducing the amount of energy required to activate the reaction, allowing them to occur more quickly and efficiently. Enzymes are found in all living organisms, including bacteria, plants, and animals. They are responsible for every chemical reaction that occurs in the body, including breathing, digesting food, and synthesizing hormones. Enzymes are essential for life and can be used to create a variety of products, including drugs, food additives, and fragrances.

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A molar solution is defined as an aqueous solution that contains 1 mole (gram-molecular weight) of a compound dissolved in 1 liter of a solution

Molarity is the number of moles of solute per liter of solution. For example, if you diffuse table salt in water, salt is the solute, molarity, and water is the solution. One mole of sodium chloride weighs 58.44 grams. If you melt 58.44 grams of NaCl in one liter of water, you have a one-molar solution, shortened as 1M

Molarity of a given solution is defined as the total number of moles of solute per liter of solution. while the molarity of a solution is identical to the moles of solute divided by the volume of solution in liters.

So we can conclude that Molarity is another quality expression of solution concentration.

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The molarity of a solution with an absorbance of 0.8 would be indeterminable without more information.

The absorbance (A) of a solution is a measure of its ability to absorb light and is related to its concentration.

The relationship between absorbance and concentration is described by the Beer-Lambert law, which states that A is proportional to the concentration of the absorbing species in the solution (c), the length of the path the light travels through the solution (l), and a constant, the molar absorptivity (ε), which is specific to the absorbing species:

A = ε * c * l

To determine the concentration of a solution if its absorbance is known, we need to know the value of the molar absorptivity (ε) for the absorbing species and the length of the path the light travels through the solution (l).

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Answer:  Definition. Full siblings share the same biological mother and father, maternal half-siblings share the same mother only, and paternal half-siblings share the same father only. Therefore, full siblings share, on average, 50% of their genes with one another and half siblings share approximately 25%.

Explanation:

The chemical formula for one compound in the equation that contains both ionic bonds and covalent bonds is NaHCO3.

Monoclinic crystalline structure describes sodium bicarbonate, also known as sodium hydrogen carbonate. Sodium carbonate was created by French scientist Nicolas Leblanc. The first plant to make baking soda was established by New York bakers Austin Church and John Dwight in the year 1846.

It is a white, crystalline, solid chemical substance that is often in the form of powder. Sodium ions and bicarbonate ions make up this salt. Its chemical name is NaHCO3. Its foundation is thin. Its PH value is around 8.31, and it is frequently referred to as baking soda.

One sodium cation and one bicarbonate anion are present in each sodium bicarbonate molecule. In this instance, an ionic connection is created between the negatively charged oxygen and the positively charged sodium ion (which is singly bonded to the central carbon and not bonded to a hydrogen atom)

Cockroaches are killed using it, and it also controls fungus growth. It is employed as a cleaner. It serves to guard against odor and discomfort in the armpit area. It is employed in cooking, particularly for baking food. It is given intravenously in medicine to lessen the negative effects of chemotherapy.

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The mutation will be passed to daughter cells through the meiosis of diploid cells. Option B.

Mutation can only be inherited through germ lines of sex cells.

The division of sex cells is otherwise known as meiosis. During this division, mutated genes can be passed from the parent cells to the resulting daughter cells.

During the formation of eggs and sperm, the genetic material of a cell is divided and separated into individual cells, which will eventually develop into the egg or sperm cell. This process creates cells with half the number of chromosomes as the original cell.

If a mutation occurs during this process, it can be passed on to offspring when the egg or sperm cell is fertilized.

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Answer:

The Correct answer is A that is Plain Fisheries

Explanation:

Plain Fisheries for ex- Carp and Tilapia are used as a major source of protein because These Fish contain all the essential amino acids which makes them a high-quality source of protein.

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ANSWER"

A water molecule is consumed and a monomer is released.

Explanation:

A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol. While this occurs in many reactions, the term is usually reserved for reactions in which a new carbon-carbon bond is formed.

Answer:

Explanation:

For monohybrid cross, Mendel began with a pair of pea plants with two contrasting traits i.e., one tall and another dwarf. The cross-pollination of tall and dwarf plants resulted in tall plants. All the hybrid plants were tall

The diversity of species seen in intertidal zones helps to illustrate how the biosphere is impacted by favorable oceanic conditions.

The areas between the highest point of the high tide and the lowest point of the low tide are known as the intertidal zones. There is a lot of nourishment in these areas due to the constant shift brought on by the advancing or receding of water, and they also offer favourable living conditions for a variety of creatures, particularly tiny and mid-sized ones.

The effect on the biosphere as a whole is highly favourable. The number of distinct organisms and the number of species that are represented in a very short space are both highly high. As a result, the environment becomes incredibly vibrant and prosperous.

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Answer:

B. Intertidal areas support many types of life. 

Explanation:

The answer is actually B!!! Please note that you have to make sure that YOUR question says BIOSPHERE and NOT GEOSPHERE etc.

I also got it right on the quiz, check the pic for proof

Enzymes. Proteins called enzymes catalyse biological reactions that otherwise would not occur.  

Chemical reactions like digestion and cellular metabolism depend on these enzymes. Without enzymes, the majority of physiological processes would move so slowly—or even not at all—that life would be impossible. By aiding the molecular rearrangements necessary for cell activity, enzymes—protein catalysts—speed up biological reactions. Remember that chemical reactions change substrates into products, frequently by joining or separating chemical groups from the substrates. In your body, protein plays a variety of roles. It enables metabolic responses to happen, aids in tissue building and repair, and synchronises biological processes. Proteins provide a healthy pH and fluid balance in addition to giving your body a structural foundation.By serving as enzymes, transporters, or hormones in addition to providing structural support, they aid in metabolism. Amino acids are the monomers—or building blocks—of proteins.

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Glycolysis produces 2 ATP and 2 NADH, Krebs cycle produces 2 ATP, 6 NADH, and 2 FADH2, and ETC generates 28-34 ATP.

Step of Cellular Respiration Glycolysis has number of ATP Produced is equal to 2 and number of H-Carriers Produced is 2 NADH, Step of Cellular Respiration Krebs Cycle has number of ATP Produced is equal to 2 and number of H-Carriers Produced is 6 NADH, 2 FADH2 and Step of Cellular Respiration Electron Transport Chain has number of ATP Produced is equal to 28-34 (depending on cell type).

The exact number of ATP molecules produced in the electron transport chain can vary depending on the cell type and conditions. The range given (28-34) is a typical estimate for eukaryotic cells.

The breakdown of glucose during cellular respiration involves three main steps: glycolysis, the Krebs cycle, and the electron transport chain. These steps produce energy in the form of ATP molecules and hydrogen carriers, such as NADH and FADH2. Glycolysis produces 2 ATP and 2 NADH, while the Krebs cycle produces 2 ATP, 6 NADH, and 2 FADH2. During the electron transport chain, the hydrogen carriers release their electrons and protons to generate a proton gradient, which is used to make a large amount of ATP.

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Answer: Through the tricuspid valve, the heart moves oxygen-poor blood from the right atrium to the right ventricle. The blood is subsequently pumped by the right ventricle down the pulmonary artery to the lungs, where it enters the respiration process to absorb oxygen and expel carbon dioxide. The oxygen-rich blood then travels through the pulmonary veins back to the left atrium of the heart. Through the mitral valve, the left atrium delivers blood that is oxygenated to the left ventricle. The aorta, which divides into smaller arteries that carry blood to numerous organs and tissues, is how the left ventricle subsequently pumps the oxygen-rich blood to the rest of the body.

The phenotypic percentages would be: No tail: 50%, Short tail: 50%, Long tail: 0%.

The term "phenotype" describes a person's observable characteristics, such as height, eye color, and blood type.

Both a person's genomic make-up (genotype) and environmental circumstances affect their phenotype.

We know that the offspring would receive one allele for tail length from each parent based on the incomplete dominance principle. The genotypes of the progeny would be:

Thus, this can be the genotypic and phenotypic percentages of the generation.

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The inputs of Photosynthesis are water and carbon dioxide and the outputs are sugar and oxygen.

The inputs of Cellular Respiration are Sugar and oxygen and the outputs are energy and carbon dioxide.

Photosynthesis is a process that occurs in plants and some other organisms, where light energy is converted into chemical energy in the form of glucose (sugar) and oxygen is produced as a by-product.

On the other hand, cellular respiration is a metabolic process that occurs in all living cells and it converts the chemical energy stored in glucose (sugar) into usable energy in the form of ATP, while producing carbon dioxide as a waste product.

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Elk and fallow deer are classified in the same genus, Cervus, because they are closely related and have similar physical and biological characteristics.

The genus Cervus, in the family Cervidae, is a group of deer species that includes both elk and fallow deer. These species are closely related due to their shared evolutionary history, and they have similar physical characteristics, such as their antlers, body size, and coat patterns.

Additionally, elk and fallow deer have similar biological behaviors, such as similar mating rituals and social structures. This shared biology is another reason why they are classified in the same genus.

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The endometrium is the inner lining of the uterus, which is a female reproductive organ.

It is a highly vascularized tissue that undergoes cyclic changes in response to hormonal signals from the ovaries. Every menstrual cycle, the endometrium thickens in preparation for a potential pregnancy, and if pregnancy does not occur, the endometrium is shed in the form of menstrual bleeding.

In addition to its role in fertility and menstruation, the endometrium is also involved in implantation of a fertilized egg and the growth and nourishment of the developing fetus during pregnancy.

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They may come up with a tested hypothesis, have a specific goal, and fill up a knowledge gap.

Of, pertaining to, or demonstrating the principles or procedures of science.: carried out in the style of science or in accordance with the findings of research by science: employing thorough or methodical methods. advertising using science.

This following are additional examples of scientific explanations: Theorizing about gravity Isaac Newton's gravitational theory is a simple formula which shows how the gravitational force can act between two objects of differing masses, divided by a particular distance.

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