: beta-lactamase can provide resistance to . . . choose one: a. penicillin. b. tetracycline. c. vancomycin. d. bacitracin.
Answers
Beta-lactamase can provide resistance to bacitracin. Option D.
Resistance to beta-lactam antibiotics primarily occurs through one of two mechanisms The production of β-lactamases the most common mechanism of resistance in Gram-negative bacteria, or the production of altered PBPs with lower affinity for most β-lactam antibiotics.
Beta-lactamases are enzymes produced by bacteria that confer multidrug resistance to beta-lactam antibiotics such as penicillins cephalosporins cephamycins monobactams and carbapenems, whereas carbapenems are beta-lactamases. relatively resistant to The β-lactamase enzyme inactivates β-lactam antibiotics. Hydrolysis of the peptide bond of the characteristic 4-membered beta-lactam ring renders the antibiotic ineffective. Inactivation of antibiotics confers resistance to bacteria.
Learn more about Beta-lactamase here:- https://brainly.com/question/29555298
#SPJ4
Related Questions
If each parent is a purebred, brown-eyed person, what is the probability of having a brown-eyed child.
Answers
Answer:
100%
Explanation:
Answer:100%
Explanation:
Because if both parents are 100% the average between them is still 100% so there are no other options for the child.
Camouflage typically evolves as a result ofO herbivory. O interspecific competition. O mutualism. O predation
Answers
Camouflage typically evolves as a result of predation. Therefore, option D is correct.
What is predation?One organism kills and eats another during predation. To the detriment of the organism being consumed, the prey, predation supplies energy to prolong life and encourage reproduction of the organism doing the killing, the predator.
Predation can be classified into four categories: carnivory, herbivory, parasitism, and mutualism. Depending on whether or not the victim dies, each sort of predation can be classified. Predation in which the prey creature is a plant is known as herbivory. Encounter, detection, identification, approach, and consumption are the five stages of predation.
Thus, camouflage typically evolves as a result of predation. Therefore, option D is correct.
Learn more about predation, here:
https://brainly.com/question/30052023
#SPJ5
true or false: although it was once thought that bacteria were the causative agent of most peptic ulcers, new evidence suggests that ulcers are usually caused by irritation to the gastrointestinal tract and that bacteria are only rarely involved.
Answers
It is false that "bacteria were the causative agent of most peptic ulcers, new evidence suggests that ulcers are usually caused by irritation to the gastrointestinal tract and that bacteria are only rarely involved." because bacteria have been found to be as causative agent of ulcers,
Peptic ulcers are basically open sores which happen to develop on the inside of the lining of our stomach and even the upper portion of your small intestine. Ulcers occur basically when the stomach acid damages the lining of the human digestive tract. Another common cause of ulcers are anti-inflammatory pain relievers including aspirin.
Bacteria have only very relatively recently been described as a causative agent of peptic ulcers, and new evidence also suggests that the bacterium Helicobacter pylori is somewhat involved in the majority of these cases.
To know more about peptic ulcers here
https://brainly.com/question/14662116
#SPJ4
Why is the carrier selection process less straightforward than the modal selection process?
Answers
The carrier selection process is less straightforward than the modal selection process due to the complexities of assessing carrier status and the potential for individuals to carry recessive genetic mutations without displaying symptoms.
The carrier selection process is less straightforward than the modal selection process because it involves assessing an individual's carrier status for specific genetic conditions. Carriers are individuals who carry a single copy of a recessive genetic mutation but do not exhibit any symptoms of the associated disorder. In contrast, the modal selection process focuses on identifying individuals who display overt symptoms or characteristics of a particular condition.
Identifying carriers requires genetic testing and analysis to detect the presence of specific genetic mutations. This process can be complex as it involves analyzing an individual's DNA to identify the presence of recessive mutations that can be passed on to offspring. Furthermore, carriers may not have a family history of the condition or any symptoms, making it challenging to identify them without genetic testing.
In contrast, the modal selection process relies on visible characteristics or symptoms to identify individuals affected by a particular condition, making it relatively more straightforward.
learn more about DNA, here
https://brainly.com/question/30993611
#SPJ4
1. List the 3 parts of the cell theory below:
2. Identify the part of the cell theory represented by the images below. Do NOT just write part 1 or
part 2!!
can some one help me with this 2 questions
Answers
The cell theory was first proposed by Schwann and Schleiden, then modified by Virchow, and, with time, completed by several researchers to get to the modern version. 1) 1- The cell is the structural and physiological unit of living beings. 2- The cell is the most basic independent unit of life. 3- Cells transmit genetic material during cell division to daughter cells. 2) 1- Cells are the basic units of reproduction, they originate by division of pre-existing cells. 2- All living organisms are made up of cells. 3- The chemical composition is basically the same in all cells.
What is the cell theory?
The cell theory was first proposed by Schwann and Schleiden around 1830. After a few years, Virchow rejected the third state of Schwann and Schleiden’s ideas about spontaneous generations, and proposed that cells were the product of other pre-existing cells and originated by cellular division.
Currently, the cell theory states that
All living organisms are made up of cells.The cell is the structural and physiological unit of living beings.Cells are the basic units of reproduction, they originate by division of pre-existing cells.The cell is the most basic independent unit of life.And the modern version of the theory adds a few more aspects,
Energy flows within cells.Cells transmit genetic material during cell division to daughter cellsThe chemical composition is basically the same in all cells.1) 3 parts of the cell theory:
1- The cell is the structural and physiological unit of living beings.
2- The cell is the most basic independent unit of life.
3- Cells transmit genetic material during cell division to daughter cells
2) Identify the part of the cell theory represented by the images below.
1- Cells are the basic units of reproduction, they originate by division of pre-existing cells.
2- All living organisms are made up of cells.
3- The chemical composition is basically the same in all cells.
You can learn more about the cell theory at
https://brainly.com/question/4695161
#SPJ1
hurry50points
Explain the theory of plate tectonics and how they have changed Earth’s surface over time. Include the role of plate tectonics in the creation of landforms. suort awser
Answers
Answer:
The movement of these tectonic plates is likely caused by convection currents in the molten rock in Earth's mantle below the earth crust...Explanation:
The movement of these tectonic plates is likely caused by convection currents in the molten rock in Earth's mantle below the crust. Earthquakes and volcanoes are the short-term results of this tectonic movement. The long-term result of plate tectonics is the movement of entire continents over millions of years... please marks me as brainliests for my effort....what did fulton j. sheen say about the difference between the idealist and the scholastic notion of science?
Answers
Fulton j. sheen believed that science should be practical and nonspeculative, which is the main difference between the idealist and the scholastic notion of science.
Fulton j. sheen also emphasized the importance of practical, experimental methods in the pursuit of scientific knowledge.
He advocated for a scientific method that relied on empirical observation and experimentation, and argued that science should be used to benefit society through the practical application of scientific knowledge. He shared this emphasis on the practical benefits of science and rejected speculative or metaphysical approaches to understanding the natural world.
To know more about science here
https://brainly.com/question/28549345
#SPJ4
UV radiation causes the formation of
Answers
Answer:
skin radiation, and other skin diseases
Explanation:
MAY BE USEFULSorry if it's wrong
every organism contains _____ for genetic material (called DNA) that tells the cells what to make it in order to make a certain type of organism
the DNA of all organisms is made of four bases: Adenine (A), Thymine (T), Cytosine (C) and Guanine (G). the major difference between the instructions to make an organism is the _____ of the bases.
fill in the blanks, please help!!!
Answers
Answer:
?uracil (it's in RNA) and in the DNA it's substitutedExplain that mutation is not the main factor in evolution but is also an additional factor.
Answers
Answer:
Explanation:
Therefore, mutations alone do not have much effect in the origin of new species. However, mutations give the genetic variation required for other forces of evolution to perform. Gene flow arises when the movement into or out of population. There can considerable effect on frequencies if the migration is high.
tina believes in john locke's idea of tabula rasa. when tina's baby is born, she expects the child will most likelygroup of answer choicesalready show learning that occurred in the ready to learn new information based on new sensory be able to show learning for several able to recognize sensory input to which she was exposed before birth.
Answers
Tina expects her baby to be able to recognize sensory input it was exposed to before birth and be ready to learn new information based on new sensory input.
Tina believes in John Locke's idea of tabula rasa, which suggests that human beings are born with a blank slate and all knowledge and behavior is acquired through experience. Based on this belief, Tina expects her baby to be able to show learning that occurred in the womb, such as being able to recognize sensory input that it was exposed to before birth.
However, she also expects her baby to be ready to learn new information based on new sensory input. This is because Locke's theory suggests that the mind is a blank slate that is ready to be filled with new knowledge. Therefore, Tina believes that her baby will not only be able to recognize familiar sensory input but also be able to learn and develop new skills and abilities as it grows and interacts with the world around it.
Learn more about sensory input here:
https://brainly.com/question/31718049
#SPJ11
bones such as the vertebrae are classified as bones called____
Answers
Explanation:
I believe Irregular Bones
What causes the Pacific Ring of Fire to have so many volcanoes.
Answers
stomata openings in the leaf are important to photosynthesis for
Answers
Stomata openings in the leaf are important to photosynthesis for a variety of reasons. Stomata are tiny pores on the surface of leaves that allow carbon dioxide to enter and oxygen to exit.
These openings are surrounded by specialized cells called guard cells that can regulate the size of the pore, thereby controlling the rate of gas exchange.
This regulation is important because photosynthesis requires a delicate balance of carbon dioxide and oxygen. If the stomata are closed, there is no way for carbon dioxide to enter and photosynthesis cannot occur.
However, if the stomata are open too wide, too much water can be lost through transpiration and the plant can become dehydrated.
Additionally, the stomata can be used to help regulate the temperature of the leaf. When the stomata are open, water vapor can exit the leaf, which can cool the plant. This is particularly important in hot, dry environments where overheating can damage the plant.
Overall, stomata openings are essential for photosynthesis and plant survival. They allow for gas exchange, regulate water loss and temperature, and help maintain a healthy balance within the plant.
To know more about Stomata visit:
https://brainly.com/question/32007448
#SPJ11
after meiosis, the resulting gametes have ____ the number of chromosomes as the parent cell
Answers
Answer:
After meiosis, the resulting gametes have half the number of chromosomes as the parent cell
Explanation:
ag-ab binding may result in a. neutralization b. immobilization c. agglutination d. opsonization e. all of the above
Answers
Ag-ab binding may result in (e) all of the above: neutralization, immobilization, agglutination, and opsonization.
The binding of antigens (Ag) and antibodies (Ab) can result in various outcomes, including neutralization, immobilization, agglutination, and opsonization. These processes are part of the immune response and have different roles in defending the body against pathogens.
a. Neutralization: When antibodies bind to antigens, they can neutralize their harmful effects. This can involve blocking the binding of the antigen to host cells or inactivating toxins produced by the antigen, thereby preventing damage to the body.
b. Immobilization: Antibodies can bind to antigens on the surface of microorganisms, such as bacteria or parasites, and immobilize them. This can hinder their movement and prevent them from spreading or invading host tissues.
c. Agglutination: Agglutination occurs when antibodies bind to multiple antigens, causing them to clump together. This clumping facilitates their removal from circulation by immune cells or clearance through other immune mechanisms.
d. Opsonization: Opsonization is the process by which antibodies bind to antigens and enhance their recognition and uptake by phagocytic cells. This facilitates the clearance of the antigen by the immune system.
All of these outcomes—neutralization, immobilization, agglutination, and opsonization—are possible when antigens and antibodies bind to each other, aiding in the immune response against pathogens and foreign substances.
Therefore, option e, "all of the above," is the correct answer.
Learn more about Ag-ab binding:
https://brainly.com/question/29423317
#SPJ11
HELP ASAP PLZ!!!!
Question 10 of 10
Earthquakes are most common:
A. where oceanic crust slides under continental crust.
B. where two continental plates spread apart.
O C. in the middle of continents.
D. on the edges of the Atlantic plate.
SUBMIT
Answers
Answer:
A is the answer!
Which of the following is NOT a step in risk management?
A. risk assessment
B. risk reduction strategy
C. risk identification
D. refusing to reduce the risk regardless of the outcome
Answers
Answer:
D
Explanation:
reducing risk is the one of the best approach to risk management
georges-louis leclerc was an eighteenth-century taxonomist who developed the binomial system of nomenclature. true or false
Answers
The statement "Georges-Louis Leclerc was an eighteenth-century taxonomist who developed the binomial system of nomenclature" is false because it was Carl Linnaeus, an 18th-century Swedish botanist, who developed the system.
Georges-Louis Leclerc, Comte de Buffon (1707-1788), was an important figure in the field of natural history during the eighteenth century, but he did not develop the binomial system of nomenclature.
The binomial system of nomenclature was actually developed by the Swedish botanist and physician Carl Linnaeus (1707-1778). Linnaeus is considered the father of modern taxonomy and is known for his work in establishing a standardized system for naming and classifying organisms.
In Linnaeus's binomial system, each organism is given a unique two-part scientific name consisting of its genus and species. This system, known as binomial nomenclature, provides a universal language for identifying and categorizing species, and it is still widely used in biological sciences today.
While Georges-Louis Leclerc, Comte de Buffon, made significant contributions to the field of natural history, he focused more on broader concepts like the study of the Earth's history, the classification of minerals, and the exploration of the relationships between organisms and their environment.
Learn more about binomial nomenclature here: https://brainly.com/question/30585222
#SPJ11
Construct an argumentative paragraph. Do you believe it's ethical or unethical to artificially select traits in plants and or animals? Provide evidenco to suoport your claims. It doesn't matter what side you chose, but I need it asap.I will give you any mark you want.
Answers
Answer:
The ethics of artificially inserting traits in animals has been in the practice for years in the form of selective breeding, but should scientists really be editing DNA to the extent they are today? I don't believe they should. Life itself should construct itself without us interfering. Making a brand new plant just because it looks nice doesn't account for many factors, including the fact that it could be harmful to nearby plants if pollinated. In addition, generic engineering costs quite a lot of money, which should be used on other more cost effective methods, such as improving agriculture rather than creating a whole new plant that could harm entire crops. Genetic engineering isn't a necessity and humans should not play God with plant and animal life.
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits. A flow chart is shown. A and B both go to C. C goes to both D and E. In which squares should the phrase “Yellow pods” appear? A and D B and E A, C, and D A, B, C, D, and E
Answers
Answer:
3
Explanation:
A and D only
B and E only
A, C, and D only
A, B, C, D, and E
Mark this and return
Within the food web provided, look at all the ABIOTIC and BIOTIC factorsHow do they work together to create an ecosystem?
Answers
Biotic factors in an ecosystem are the living organisms or the participants in the foob web. They count on each other for their survival. The biotic factors in the foob web provided are the producers, consumers and decomposers. Abiotic factors in an ecosystem are rocks, soil, and water that collaborate with biotic factors to provide them with the nutrients they needed to survive. Sunlight, air, soil, and minerals are also examples of abiotic factors. Sunlight gives energy so that plants may use them i order to grow. This ultimately holds up the whole community of an ecosystem. Air also connects with plants to help them grow by providing an origin of CO2 and other nutrients.
Which structure in plants allowed the first land plants to survive out of water?
A. cuticle
B. epidermis
C. guard cell
D. spongy mesophyll
Answers
Answer:
A
Explanation:
The structure of plants that allowed the first land plants to survive out of water is known as the cuticle. Thus, the correct option for this question is A.
What were the first plants to live on land?The first plants that were tends to live on land are the Non-vascular plants, which include mosses and liverworts, which were the first-ever land plants. They do not have much of an internal support system but have slightly simpler material for the same tasks.
Early in their history, land plants also evolved a cuticle. The cuticle is the structure that involves a waxy layer on the outer surface of the aerial parts of a plant that helps to prevent water loss. Sometimes cuticle with details of epidermal cell structure is preserved in fossil plants.
Guard cells play an important role in the opening and closing of the stomata. While epidermis is the outer cell which prevent the whole plant form injury.
Therefore, the structure of plants that allowed the first land plants to survive out of water is known as the cuticle. Thus, the correct option for this question is A.
To learn more about Cuticle, refer to the link:
https://brainly.com/question/16419719
#SPJ6
what do eukaryotic cells have that prokaryotic cells do not ?
Answers
Answer:
eukaryotic cells have a membrane-bound nucleus, while prokaryotic don't.
Explanation:
Which of the following is NOT true of metallic minerals? *
A.)They have shiny surfaces.
B.)They do not conduct heat well.
C.)They do not let light pass through them.
D.)They can be processed into metals that do not rust.
Answers
Answer: They do not conduct heat well
Explanation:
Tallness is dominant to shortness in pea plants. Which of the following represents a genotype of a pea plant that is tall?
Question 3 options:
TT and Tt
Tt
TT
tt
Answers
Answer:
the first one
Explanation:
TT means that either way the plant is tall, and Tt means that it had a 50% chance for being small, but the T completely takes over and makes it tall. Tt is correct and TT is correct, but both TT and Tt are both correct, which leads you the first answer, TT and Tt. I hope this helps :D
what are the roles of cyclins and cyclin-dependent kinases during the cell cycle? how do perturbations of the cell cycle checkpoints contribute to disease?
Answers
To activate the kinases, cyclins connect to them. The activity of cyclin-dependent kinases changes with cyclin concentration. At the G2 phase, Cyclin and a Cdk unite to start mitosis (M phase). This mixture produces MPF (maturation-promoting factor), which encourages the cell to continue mitosis through the M phase. The cyclin is broken down at the G1 phase, and the Cdk is recycled.
What about cyclins?A family of regulatory proteins known as cyclins manages how the cell cycle develops. Cyclins cause the phosphorylation of cyclin dependent kinases (CDKs), which regulate the cell cycle. A target protein will attach to a complex made up of a cyclin and a CDK, and the complex will phosphorylate the protein. Cyclins collaborate with an enzyme family known as the cyclin-dependent kinases to control the cell cycle's activities (Cdks). A Cdk that is not bound to a cyclin is inactive, but when it is, it becomes a functioning enzyme that can alter target proteins.By phosphorylating and inactivating target substrates, cyclins are the regulatory subunits of holoenzyme CDK complexes that control progression through cell-cycle checkpoints. Cyclin-dependent kinases (CDKs) are protein kinases that require a distinct subunit - a cyclin - that provides domains necessary for enzymatic action. The cyclins associate with various CDKs to offer specificity of function at various stages during the cell cycle. In response to various extracellular and intracellular signals, CDKs modify transcription and play significant roles in the regulation of cell division.Learn more about cyclins here:
https://brainly.com/question/931366
#SPJ4
!!!!NEED HELP ASAP ILL GIVE BRAINLIEST AND 25 POINTS!!!!! How do proteins help transport of materials through the membrane?
Answers
Answer:
Channel proteins can aid in the facilitated diffusion of substances by forming a hydrophilic passage through the plasma membrane through which polar and charged substances can pass.
Explanation:
Answer: By forming a continuous protein pathway across the membrane, these proteins enable specific hydrophilic solutes to cross the membrane without coming into direct contact with the hydrophobic interior of the lipid bilayer. Carrier proteins and channel proteins are the two major classes of membrane transport proteins.
Why do plants need nitrate ions? (1mark)A) for making amino acidsB) for making fatty acidsC) for making glucoseD) for making starch
Answers
The correct answer is the letter A) for making amino acids
Plants require nitrates in order for them to make amino acids. Bacteria that are present in the soil convert the nitrogen into ammonium and nitrate, which are taken up by plants through the process of nitrogen fixation.
Which statement correctly summarize the results of this investigation
Answers
Answer:
it's C)
Explanation:
...............