If a reaction is exergonic, then which of these statements is true?
Final answer:
The true statement for an exergonic reaction is that (option A) the products have lower Gibbs free energy than the reactants, as energy is released during the reaction.
Explanation:
If a reaction is exergonic, then the correct statement is: A. The products have lower Gibbs free energy than the reactants. This is because during an exergonic reaction, energy is released as the reaction proceeds. As energy diagrams and thermodynamics principles indicate, the Gibbs free energy change for an exergonic reaction is negative, meaning that the reaction releases energy, often in the form of heat, and the products have less energy than the reactants. The idea of a reaction being 'downhill' metaphorically represents this energy release.
The other options are not generally true for exergonic reactions. B. Energy must be added for the reaction to proceed is incorrect because that describes an endergonic reaction, where energy input is required. C. The products have lower entropy (are more ordered) than the reactants is not necessarily true; entropy changes depend on the specific reaction. D. The reaction always occurs quickly is also incorrect as the rate of a reaction is dependent on factors such as activation energy and not only on the exergonic nature of the reaction itself.
Some plants carry on photosynthesis without using chlorophyll.
TRUE
FALSE
???
PLEASE HELP
Answer:
false
Explanation:
BIOLOGY HELP
C G A A U C
Study this genetic code.
In order for this code to represent a piece of DNA, which base must be replaced by thymine?
A) adenine
B) cytosine
C) guanine
D) uracil
The cellular organelles with inheritance independent of the nucleus are the _____________ and the ____________ .
A parent asks, "how should i bathe my baby now that he has had surgery for his inguinal hernia?" which instruction should the nurse give the mother?
Based on the data you found, about how many of the 100 aliens would become thin if the temperature were 35°C?
Answer choices are:
a. fewer than 10
b. about 50
c. about 80
d. more than 90
____________________________________________________________
Correct answer choice is:
d. more than 90
____________________________________________________________
Explanation:
You have seen that at temperature 20°, around 50 aliens were thin. At 25°, roughly 70 aliens were thin. Moreover, at 30°, nearly 88 aliens were thin. The take-home feature is that the greater the temperature, the larger number of aliens are suspected to be thin. So at 35°, we would suspect a higher number of aliens to be weaker than the 88 who are thin at 30°.
Which of the following is not present in an atom?
Electron
Element
Neutron
Proton
In an atom, an element is not present. Hence, the second option is the correct answer. The atom is the basic structural unit of the element.
What is an atom?An atom is the basic, fundamental unit of the element. The atom is made up of electrons, protons, and neutrons. In an atom, the electron carries a negative charge and the proton carries a positive charge. The neutron has no charge. The proton and neutron are present in the centre of the atom. Electrons are present around it. Electrons move in orbits.
In a neutral atom, the electron and proton numbers are the same. Hence, they don't show any charge. The electron can move out of the atom or add to an atom. These electrons are called valence shell electrons. Atoms constitute to make an element. Others are incorrect options for the statement because electrons, protons, and neutrons are all components of an atom.
Hence, the second option is the correct answer, as an atom is a part of an element, but an element is not a part of an atom.
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The skin, which plays an important protective role, is composed of which type of epithelium? the skin, which plays an important protective role, is composed of which type of epithelium? simple columnar simple squamous stratified columnar stratified squamous
What is the ultimate energy source for most forms of life on earth?
Which process can be primarily affected by gallbladder disease ?
A. Carbohydrate digestion
B. fat digestion
C . protein Digestion
D. vitamin digestion
Answer: B. Fat Digestion
Explanation: Took the test on PLATO its correct
how many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each other
What are the four weak (noncovalent) interactions that determine the conformation of a protein?
If a scientist wanted to study cell responses under varying environmental conditions, what laboratory technique would be appropriate to use
The branch of the autonomic nervous system that prepares the body for quick action in an emergency is the ________ division.
Define radioactivity . if an element has three isotopes, which of them is most likely to be a radioisotope
Radioactivity is the emission of particles and radiation from unstable atomic nuclei. For example, Carbon-14 is a radioactive isotope with 6 protons and 8 neutrons, unlike the stable Carbon-12 and Carbon-13. Carbon-14 decays over time, emitting radiation.
Radioactivity is the spontaneous emission of particles and radiation from atomic nuclei. This process occurs because unstable nuclei seek to achieve stability, emitting energy in the form of radiation.
To give an example, Carbon-14 (C-14) is a well-known radioactive isotope, which is commonly used in radiocarbon dating. Carbon-14 has 6 protons and 8 neutrons, whereas its stable isotope, Carbon-12 (C-12), has 6 protons and 6 neutrons.
Carbon-12 (C-12): Protons = 6, Neutrons = 6Carbon-13 (C-13): Protons = 6, Neutrons = 7Carbon-14 (C-14): Protons = 6, Neutrons = 8 (Radioisotope)Among these isotopes, Carbon-14 is a radioisotope due to its unstable nuclear configuration, which leads it to emit radiation as it decays over time.
Which question is most likely closely related to th field of biology? A) What is the average length of cobra B) What are most rocks made of? C) How fast does earth rotate D)What is the mass of the moon
Cisternae that are located near the trans face of a golgi body are (click the two that are true)
What is the serous membrane that lines the walls of the thoracic cavity?
The pleura is the serous membrane lining the walls of the thoracic cavity, with a parietal layer against the cavity wall and a visceral layer covering the lungs, and a fluid-filled space in between to reduce friction.
Explanation:The serous membrane that lines the walls of the thoracic cavity is known as the pleura. This thin, double-layered membrane has a parietal layer that lines the cavity wall and a visceral layer that covers the external surface of the lungs. Between these layers is the pleural cavity, containing a small amount of serous fluid that acts as a lubricant, reducing friction during respiratory movements.
There are other serous membranes within the body, including the pericardium that surrounds the heart and the peritoneum that lines the abdominal cavity. These membranes provide a smooth and slippery lining, protect the organs they encase, and help to prevent friction, which could lead to inflammation.
When is the manual removal of oil by hand most likely to be used?
A.) When the spill is far out at sea
B.) When the oil has sunk to the bottom
C.) When heavy equipment cannot reach the spill
D.) When the oil has already started to break down
Answer:
Option D, When the oil has already started to break down
Explanation:
When the oil breaks down, there are high chances that it can get absorbed at the surface of beaches consisting of sand, gravel, or cobble which cannot be cleaned otherwise. In such scenarios adsorbents are placed manually to soak the oil spilled on beach. Mostly shorelines are cleaned using these manual processes, otherwise inner oil spills are cleaned by machines only.
Hence, option D is the correct answer.
What empirical evidence could most effectively and directly be used to convince law makers to remove a dam that is blocking a river used by wild salmon to reach their breeding grounds
A.) Information about the number of salmon offspring are produced over several years.
B.) Information on the distance from the ocean to the rivers that the salmon use.
C.) Information on how often the salmon mate during their breeding season.
D.) Information on how long it takes the juvenile salmon to grow into adults.
The correct answer is A) Information about the number of salmon offspring are produced over several years.
The empirical evidence that could most effectively and directly be used to convince lawmakers to remove a dam that is blocking a river used by wild salmon to reach their breeding grounds is "Information about the number of salmon offspring are produced over several years."
When you want to be listened by local authorities about what you consider is a serious issue for the community of the environment, you need to provide valid and serious data, not only your opinion or beliefs. Local authorities are expecting to have the right reasons, valid information, the statistics and the possible consequences of not attending an issue. In this case, an environmental issue. That is the best way to convince them and how this is going to affect them in case they do not attend the problem.
What is the name for that compound with the formula BaO?
A. Oxygen Baride
B. Barium Oxide
C. Barium Oxygen
D. Oxygen Barine
When you digest food starch is broken down to what molecule?
In the digestive process, starch is broken down into glucose, starting with salivary amylase in the mouth and continuing with other enzymes in the small intestine. Glucose is then absorbed by cells for energy.
Explanation:When you digest food, starch is broken down into a simpler molecule known as glucose. The digestion process begins in the mouth, where salivary amylase starts breaking down the long polysaccharide chains of starch into shorter chains and disaccharides, such as maltose. As digestion continues in the small intestine, enzymes like pancreatic amylase further break down these chains, and brush border enzymes such as maltase convert maltose into individual glucose molecules, which can be absorbed by the cells.
Starch is a carbohydrate composed of many glucose monomers linked together by 1-4 or 1-6 glycosidic bonds. Upon digestion, these bonds are hydrolyzed, releasing the energy-storing glucose units. This enzyme-catalyzed process is crucial for providing energy to cells and maintaining overall homeostasis in the body.
What should you do with its contents if you are done using a test tube
When done using a test tube, safely dispose of its contents in the directed waste container, and clean the test tube with soap and water, then rinse with distilled water. Ensure all labels are removed. Follow your lab's specific protocols for proper disposal and cleaning to avoid contamination.
When you are done using a test tube in a chemistry experiment, it is important to dispose of its contents safely and clean the tube thoroughly to prevent contamination in future experiments. Here's a step-by-step guide:
Carefully pour the liquid contents of the test tube into the appropriate waste container as directed by your instructor.Rinse the test tube several times with distilled water to remove any residual chemicals.For thorough cleaning, use a small brush with soapy water to scrub the inside of the test tube, then rinse with distilled water.Dry the outside of the test tube with a paper towel and place it on a drying rack upside down to let the interior air dry.Ensure all labels are removed from the test tube using ethanol and a paper towel.Always refer to your specific laboratory's protocols for waste disposal and test tube cleaning procedures to ensure safety and compliance with regulations.
Name two ways that scientists share their experimental results with other scientists
Monomers linked together are called ____________. the process of linking monomers together is called _______________________.
There are many areas of science that experience debate. How can a scientist most effectively defend their position if they discuss a controversial topic?
A.) They can alter their experimental results to fit the opinions of the community.
B.) They can argue using critical thinking skills and data.
C.) They can ignore any criticism that may occur.
D.) They can re-analyze their data until they get a better accepted result.
The scientist can argue using critical thinking skills and data to discuss a controversial topic to defend their position most effectively.
What do you mean by critical thinking skills?"Critical thinking skill is the analysis of available facts, evidence, observations, and arguments to form a judgment."The analysis should be rational and unbiased based on evidences and facts.One should fully research about the topic and put forward their points in a sequential and understandable manner.What do you mean by controversial topic?"It is a prolonged dispute, debate, or state of contention, especially one that unfolds in public and involves a stark difference of opinion."Hence, the correct option is B. They can argue using critical thinking skills and data.
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How does the loop of henle enable the mammalian kidney to produce hyperosmotic urine?
The pattern of criss-crossing strips of pastry on top of food is called a what?
Final answer:
The weaving of pastry on top of food, especially pies, is known as a lattice. It combines function and beauty, allowing steam to escape and giving a golden brown finish to baked goods.
Explanation:
The criss-crossing strips of pastry on top of food is called a lattice. This technique is often used in baking to create a visually appealing and edible top layer on pies and other pastries. The lattice is essentially a woven pattern created by interlacing long strips of pastry dough over and under each other. One famous lattice-topped pastry is the apple pie, a staple in American cuisine. The lattice top allows steam to escape during baking, which helps to prevent the pastry from becoming soggy. The lattice provides a lovely contrast of texture and color when baked until golden brown.
how can molecular evidence show species relatedness
Answer:
Nowadays, molecular pieces of evidence are used to show the similarity between two species as the universal molecule- DNA is present in all living organism from lower to higher organisms which code for the amino acids of the proteins.
The differences and similarities between genomes of two different species confirm relatedness as a mutation in genes can show evolutionary patterns which can be summarized as:
differences between base sequences can show the degree of divergence. a large number of differences means species diverged long ago. more similarity in sequence means species are more closely related.Thus, molecular evidence is used to show species relatedness.
Your neighbor has fertilized her lawn. several weeks later, she is alarmed to see that the surface of her ornamental pond, which sits at the bottom of the sloping lawn, is covered with a green layer of algae
The reason why there is a green layer of algae was because of the reason that there may be too much fertilizer applied in the lawn. When having too much fertilizer, and it had been rained down—there could have been a possibility of run-off to be flown down on the lawn of which has been sloped and made its way on the pond. By this, it increases the nutrients in the pond, making the algae to grow on it.
The motivation behind why there is a green layer of green growth was on the grounds that that there might be an excess of fertilizers connected in the garden. When having an excess of manure, and it had been poured down, there could have been a probability of run-off to be flown down on the garden. By this, it builds the supplements in the lake, making the green growth to develop on it.
Further Explanation:
Fertilizer:
A fertilizer or manure is any material of normal or engineered beginning that is connected to soils or to plant tissues to supply at least one plant supplements basic to the development of plants. Numerous wellsprings of manure exist, both common and modernly created.
Fertilizer Types:
1. Nitrogenous Fertilizers
2. Natural Nitrogenous Fertilizers
3. Phosphate Fertilizers
4. Potassic Fertilizers
5. Compound Fertilizers
6. Complete Fertilizer (NPK)
uses of Fertilizers:
Nursery workers and business producers use manures. At the point when utilized properly, fertilizer can improve soil surface, advance sound development, and increment yields.
Importance of fertilizers:
Fertilizers are substances containing concoction components, for example, fertilizer or blend of nitrates that improves the development of plants. They offer sustenance to the harvests. At the point when added to soil or water, plants can create resilience against vermin like weeds, creepy crawlies and sicknesses.
Subject: biology
Level: High School
Keywords: fertilizer, fertilizer types, uses of fertilizers, importance of fertilizers.
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