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Answer:
4. According to what is observed in the diagram, the maltose (substrate) binds to the maltase (enzyme) to obtain glucose molecules (product), in a process of hydrolysis of the maltose.
5. Three factors that can affect intestinal maltose activity - slowing it down or stopping it - are temperature, pH and substrate depletion.
Explanation:
4. Enzymes, such as maltase, have the function of making a reaction faster and decreasing the activation energy. Maltase is responsible for breaking down a maltose molecule, a dimer, into two glucose monomers, which is a hydrolysis reaction of the bonds that hold glucose molecules together.
5. There are several factors that can cause the decrease or cessation of the activity of an enzyme. Enzymes are activated when substrate is available and work best under ideal temperature and pH conditions. When there are alterations of these factors, the enzyme will reduce or stop the reaction in which it intervenes.
pH: when the pH increases or decreases it produces a decrease in the speed of reaction that catalyzes an enzyme. Very high or low pH levels can denature the enzyme and make the expected reaction not occur. Temperature: like pH, changes in temperature can slow or stop maltase activity. Substrate availability: It is a fact that when the specific substrate of an enzyme becomes depleted, the rate of reaction slows down, stopping when no substrate is available.Related Questions
A forest fire destroys an area. Asmall population of trees and a large population of birds are both affected.
Which type of limiting factor causes this?
A. density dependent
B. Hensity independent
C.opulation dependent
D. opulation independent
HELP PLS!!!
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Deer mice are usually dark brown and live in forests with dark soil. However, the deer mice in the Sand Hills of Nebraska are lighter brown and live in an area with light, sandy soil.
Based on this information, what ,begin emphasis,most,end emphasis, likely caused the change in the Sand Hills deer mice?
Answer options with 4 options
A.
Lighter colored mice were preferred by females.
B.
Lighter colored mice came from snowy habitats in the north.
C.
Lighter colored mice had more dominant genes in their new habitat.
D.
Lighter colored mice were more likely to avoid predators and to reproduce.
Answers
Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.
The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.
As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.
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Which of the following are features of nucleosomes? A nucleosome contains approximately 20 base pairs of DNA. The DNA in a nucleosome is wound around eight histone proteins. Between nucleosomes is a stretch of DNA called "linker DNA". A nucleosome contains 8 different types of histones. In a nucleosome, DNA is wrapped 4 times around the histone core. H1 seals off where DNA enters and leaves the nucleosome. Nucleosomes contribute to DNA packing. Nucleosomes in chromatin are arranged in straight, side-by-side chains. Nucleosomes are about 10000 Angstroms in diameter. Histones have tails that stick out and can be modified, affecting DNA expression.
Answers
Answer:
The correct answers are "The DNA in a nucleosome is wound around eight histone proteins", "Between nucleosomes is a stretch of DNA called "linker DNA", "H1 seals off where DNA enters and leaves the nucleosome", "Nucleosomes contribute to DNA packing", and "Histones have tails that stick out and can be modified, affecting DNA expression".
Explanation:
Nucleosomes are comprised of DNA and histones that in conjunction form structural units of the chromosomes. The DNA in a nucleosome is wound around eight histone proteins, which are known as the histone octamer. Between nucleosomes is a stretch of DNA called "linker DNA", which is an unwrapped DNA that can be between 10 to 50 base pairs long. H1, one of the four types of histone, seals off where DNA enters and leaves the nucleosome serving as an anchor to the complex. Nucleosomes contribute to DNA packing by wrapping the DNA and forming the structural units of the chromosomes. Histones have tails that stick out and can be modified, affecting DNA expression; which are known as "histone tails" located in the N-terminal side and where higher order structures are arranged.
Which of the following should be avoided in a patient with a history of severe anaphylactic reaction to sulfa medications? A. Amiloride B. Hydrochlorothiazide C. Mannitol D. Spironolactone E. Triamterene
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Hydrochlorothiazide should be avoided in a patient with a history of severe anaphylactic reaction to sulfa medications. The correct option to this question is B.
Drug allergy In addition to electrolyte problems, orthostatic hypotension, hyperglycemia, and photosensitivity, hydrochlorothiazide (HCTZ) is a sulfonamide-containing medication with a long history of side effects.In patients with a history of sulfonamide allergy, the concern of hypersensitivity to loop or thiazide diuretics is raised since it is believed that there is a possibility of cross-reactivity from common sulfonamide ingredients of these drugs. Allergists are consulted in this situation.A more severe or rash-like reaction to sulfa medications is known as a sulfa allergy. From eye infections to rheumatoid arthritis, these medications can be used to treat a variety of medical conditions. (RA). Antibiotics and other medications are classified as sulfa medicines, often known as sulfonamides. Most frequently, medications cause allergies.For more information on sulfa allergy kindly visit
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The occurrence of discarded fishing gear still catching or entangling fish is known as _______
A. ghost fishing.
B. lost fishing.
C. overfishing.
D. bycatch.
Answers
Answer:
ghost fishing
Explanation:
Answer:
A
Explanation:
Select the correct labels on the image.
Which organelles in a plant cell are involved in converting food to energy during cellular respiration?
Membrance
Golgi
apparatus
Chloroplast
PLANT CELL
Rough
endoplasmic
reticulum
Cell wall
Ribosomes
O
Cytoplasm
Vacuole
Mitochondrion
Perixosome
Nucleus
Answers
Answer:It Mitochondrion
Explanation:
explanation: cellular respiration is a processes that begins in the cytoplasm/cytosol and ends in the mitochondrion. it takes sugars made by photosynthesis and breaks them down in a multi-step process to yield ATP/cellular energy. the anaerobic processes occur in the cytosol and the aerobic processes occur in the mitochondrion!
you have heard that increasing carbon dioxide concentrations in the atmosphere are leading to ocean acidification. You have also seen the equation for this reaction, wherein increasing CO2 reacts with H20 to form carbonic acid. In your virtual lab you have been provided with a sample of ocean water, a pH meter, and a straw. The straw lets you blow your exhaled CO2 into the water, creating bubbles of CO2 that will mix with the ocean water.
Answers
As written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
What is Carbon dioxide?Carbon dioxide is defined as the chemical compound that is made up of molecules each containing a carbon atom covalently linked to two oxygen atoms found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas.
In the virtual lab, we will have to blow the \(CO_2\) we exhale into sea water using a straw which will create bubbles of \(CO_2\) that will mix with the sea water. A pH meter will then be used to measure the acidity of the sea water.
So, as written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
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Some gold used for jewelry is called '18-karat white gold'. This alloy is 75% gold (Au), 12.5% silver (Ag), and 12.5% copper (Cu). If you wanted to make 25 grams of 18-karat white gold for a ring, how many grams of each metal would you need to start with?
Answers
To make 25 grams of 18-karat white gold, you would need:
18.75 grams of gold (75% of 25 grams)3.125 grams of silver (12.5% of 25 grams)3.125 grams of copper (12.5% of 25 grams)What is white gold?White gold is a type of gold alloy that is made by combining gold with other white metals such as silver, nickel, or palladium. The combination of these metals gives the gold a white appearance, which can be desirable for jewelry.
The gold content in white gold is expressed in karats, with 18-karat being a common choice for jewelry. This means that 18-karat white gold contains 75% gold, with the remaining 25% being made up of other metals. White gold is often plated with rhodium, a hard, white metal, to give it an even whiter appearance and to protect the surface from scratches and tarnishing.
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What is the surface of the Earth called?
Crust
Mantel
Inner core
Outer core
Answers
Answer:
crust
Explanation:
answer pls and thank u
Answers
After 42 days, 2g of phosphorus-32 has decayed to 0.25 g. What is the half life of phosphorus
Please add work!
Answers
The half-life of phosphorus-32 (P-32) is 14.8 days.
How do we calculate?N(t) = N₀ * (1/2)^(t / T₁/₂)
N(t) is the amount of the substance remaining at time t
N₀ is the initial amount of the substance
t is the elapsed time
T₁/₂ is the half-life of the substance
Initial amount (N₀) = 2 g
Final amount (N(t)) = 0.25 g
Elapsed time (t) = 42 days
We can rearrange the formula to solve for the half-life (T₁/₂):
(1/2)^(t / T₁/₂) = N(t) / N₀
t / T₁/₂ = log₁/₂(N(t) / N₀)
t / T₁/₂ = log(N(t) / N₀) / log(1/2)
t / T₁/₂ = log(0.25 g / 2 g) / log(1/2)
t / T₁/₂ = log(0.125) / log(1/2)
t / T₁/₂ = -log(8) / log(2)
T₁/₂ = -t / log(8) * log(2)
T₁/₂ = -42 days / log(8) * log(2)
T₁/₂ = 14.8 days
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HELP ASAP HURRRRRRRYYYY
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Is crick and Watson a type of genetic test
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No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.
Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.
These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.
While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.
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PLZ HURRY ITS A TIME LIMIT
Answers
Answer:
a
Explanation
its called erosion
what is the difference between cork formation and gum formation in the plants as an immune mechanism
Answers
Answer:
Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.
Explanation:
Which of the followings are true or false?
a. You would expect the brachial artery to have a higher pulse rate than the dorsalis pedis artery.
b. You would expect the carotid artery to be stronger than the dorsalis pedis artery.
c. Emotions, such as anger, cause an increase in pulse rate.
d. You would expect the pulse rate to increase in a test subject after five minutes of moderate exercise.
e. You would expect pulse rate to remain the same when the test subject moves from lying down to standing up.
Answers
The statement 'you would expect the brachial artery to have a higher pulse rate than the dorsalis pedis artery' is FALSE. It is a major artery.
What is an artery?An artery is a major blood vessel that transports oxygen-rich blood to different parts of the body.
The dorsalis pedis artery is a is an artery present in the lower limbs that comes from the anterior tibial artery.
The dorsalis pedis artery is fundamental for transporting oxygen-rich blood to the lower limbs.
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(What does the environment have to do with an animal's survival?)
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Answer:
An animal's environment consists of many different things. The climate, the kinds of food plants that grow in it, other animals that may be predators or competitors- the animal must learn to adapt to each of these factors in order to survive.
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
Explain why and how certain insects acquired the look of a green leaf with its, color, shape, stripes and everything step by step over many generations.
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Thigmitropism is a plant growth response to _ . A. water B. touch C. light D. humidity
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Attachment theory
Are avoidants not really into intimacy and stuff?
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Answer:
Avoidant individuals do not seek proximity and intimacy, avoid the display of emotions, and appear distant and cold. People who have this attachment style are less likely to fall in love, and they don't seem to believe in it. They fear intimacy and tend to be less involved in relationships.
Explanation:
What is the answer to number 5 and 6
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Answer:
5. A
6.D
1 gram of liquid to a gas
all the above
true or false........ (look at the pic below for the question)
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Answer:
True
Explanation:
This is because only plants have chloroplasts which are essential to photosynthesis. Without chloroplasts, photosynthesis cannot take place which is why only plants can carry out the process.
You are studying an enzyme that is inactivated by phosphorylation and create a mutant in which the threonine that is normally phosphorylated is replaced with glutamate. Predict the impact of this change on the activity of this enzyme. Group of answer choices
Answers
Answer:
always active
Explanation:
Phosphorylation is a posttranslational modification that consists of the addition of phosphate groups to specific amino acids on the protein. Phosphorylation acts as a molecular switch for proteins that are phosphorylated (i.e., in some situations phosphorylation acts to activate protein function, whereas in other situations phosphorylation can inactivate protein function). Phosphorylation modifies the three-dimensional structure of the protein, thereby affecting, for example, the accessibility of the active site of a phosphorylated enzyme to its substrate. Phosphorylation can occur only at the side chains of three amino acids: Serine, Threonine and Tyrosine. In this case, the enzyme is inactivated by phosphorylation on the Threonine residue, so it is expected that the mutant enzyme cannot be phosphorylated, remaining in an active state.
Palisade mesophyll cells have very large vacuoles.
Explain how water moves from the xylem in the leaf into these vacuoles.
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Answer:
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1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.
Please help me ASAP thank you
Answers
Explain how vaccinations can protect you from infectious diseases such as measles and chicken pox.
Answers
Answer:
Look at explanation.
Explanation:
So, most vaccines help us against infectious diseases by inserting a weak or dead version of the virus. This makes your body create antibodies to fight against the virus. So most vaccines prepare your body to be able to TRY and fight the virus by giving you a small taste of what its like.
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What happens to excess OH⁻ ions when a base is added to blood
Answers
Answer:
some of the weak-acid component of the buffer will dissociate and turn into the conjugate base (which is the weak-base component of the buffer) thus replenishing most of the protons removed.
Describe how the process of photosynthesis uses sunlight to produce glucose and how this molecule is broken down in the cell to produce energy / ATP.
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How does snake venom kill prey? How is venom toxicity measured?
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Answer:
1.Snakes use their venom cautiously, injecting amounts sufficient to disable prey or to defend against predators. Snake venom works by breaking down cells and tissues, which can lead to paralysis, internal bleeding, and death for the snake bite victim.
2.Snake venom and other toxins' strength is measured using the LD50 (lethal dose 50%) test. ... The amount of test substance that kills half the animals gives the LD50 figure. LD50 figures are used, in theory, to indicate the standard toxicity value for each chemical.