Answer:
A. Rifampicin is an example of an enzyme inhibiting drug, since it acts on the bacterial RNA polymerase, preventing the transcription and synthesis of proteins, so the bacteria is not viable and a human disease is controlled.
B. The drugs have specificity by microorganisms —target organisms— which are also smaller and more susceptible, while their effect is minimal or null in human cells and are not poisonous for them.
Explanation:
Bacteria, viruses, parasites and pathogenic fungi are microorganisms capable of producing disease in humans. One of the ways to fight infectious diseases is the use of drugs called antibiotics, capable of interfering with the development of microorganisms.
Antibiotics or antibacterials are capable of preventing the synthesis of the bacterial wall or its reproduction, intervening in the synthesis of proteins. They do this through enzymatic inhibition of these processes.
Rifampicin is a drug capable of coupling itself to one of the sub-units of the RNA polymerase enzyme, changing its configuration and preventing its affinity for its substrate, the bacterial DNA. Rifampicin thus prevents the synthesis of proteins necessary for the development of the bacterium, which dies and thus manages to control an infectious disease.Drugs such as antibiotics act on specific bacterial functions —their target organism— by affecting the functions that allow them to live that allow them to live, as if they were poisoned. These same drugs have little or no effect on human cells when administered in appropriate doses. The few effects that are observed in human cells are not sufficient to kill them, but they do produce effects or secondary reactions, usually called adverse effects.Which of the following determines a cell's function?
A Its environment
B Its Location
C Its size
D Its structure
Answer:
it's environment
Explanation:
its nature
can someone help me with a summary of asexual and sexual reproduction summary?
Answer:
Asexual reproduction is when the parent reproduces without having any sexual contact with a partner and they don't need any kind of fertilization from another partner, sexual reproduction requires both a male and female partner, and fertilization of eggs must occur.
Which macromolecule provides the energy that starts glycolysis?
ATP
sugar
carbon dioxide
water
Answer:
It starts with sugar, or C6H12O6 being broken down.
Explanation:
Also, as seeing that it is the only macromolecule here and because of the fact that glycolysis uses glucose, or sugar, your answer is B, sugar.
The macromolecule that provides the energy that starts glycolysis is ATP.
ATP:
Adenosine triphosphate (ATP) is a biological molecule that stores and releases energy for living cells.ATP is structurally adapted to its function. It releases energy for use by most metabolic activities that occurs in living cells.One of these metabolic activities is glycolysis, which is the process by which glucose sugar is broken down in the cytoplasm of the cell. Glycolysis is the first stage of cellular respiration and it requires 2 molecules of ATP to occur. Therefore, the macromolecule that provides the energy that starts glycolysis is ATP.Learn more at: https://brainly.com/question/16357043?referrer=searchResults
Why do you think it is important for a cell to grow before it replicates its DNA? Be as specific as you can in your answer
Answer:
Basically, every time a cell undergoes mitosis (one kind of cell division), various enzymes work to split each DNA strand in half, and then replace the missing half on the separated strands with corresponding nucleotides, leaving you with two identical strands. When the entirety of a cell's genome is copied (along with all the organelles), the cell can split into two daughter cells.
Imagine slicing yourself down the middle and splitting yourself in half, and then using each half of you as a template to recreate the other half.
That's the biology behind it, but the bottom line is that DNA is replicated in order to reproduce itself.
Explanation:
It is important for a cell to grow before it replicates its DNA so - each daughter cell gets the same number of identical DNA.
DNA replication needs to occur because existing cells divide to produce new cells.
Each cell needs a full instruction manual to operate properly.So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions.This way each cell gets the same instructions to perform the cellular functions.Thus, it is important for a cell to grow before it replicates its DNA so - each daughter cell gets the same number of identical DNA.
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WHAT IS EUKARYOTIC CELL ? PLZ HELP !
Answer:
A Eukaryotic Cell is a cell that has membrane-bound organelles.
I hope this helps!
Answer:
A eukaryotic cell is a cell that has a membrane-bound nucleus.
Explanation:
Also, there are things that eukaryotic cells have that prokaryotic cells do not have, but that is another thing. :)
Here is a breakdown:
Prokaryotic- unicellular organism (one cell organism)
nucleus not presentEukaryotic- multicellular organism (multiple cells)
usually found in animals, fungi, and more!Hope this helps!
What is the role of synovial fluid in synovial cavities?
A. Assisting in digestion
B. Lubricating cartilage at joints
C. Storing hormones needed to respond to stress
D. Moisturizing and filtering air before it reaches the rest of the body
Answer:
B.Lubricating cartilage at joints
why cellular respiration needed
Answer:
Cellular respiration is used to create usable energy from the foods that living things eat. It's important to know that the reactions involved in cellular respiration are catabolic, meaning they break down molecules into smaller ones.
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
What experimental evidence led to the development of this atomic model from the one before it?
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.
Experiments with water vapor showed that elements combine in specific proportions.
Equations were used to identify regions around the nucleus where electrons would likely be.
Cathode rays were bent in the same way whenever a magnet was brought near them.
Answer:
The answer is C
Explanation:
I was correct at first but then chanaged my answer when someone said it was a :(
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil. Therefore, option (1) is correct.
The gold foil or Rutherford scattering experiment showed that the atom has a small, compact, positively charged nucleus. The gold foil deflected few alpha particles, indicating that the atom is primarily empty space. A small percentage of particles deflected or bounced back, revealing a concentrated positive charge in a limited region of the atom.
This led to Ernest Rutherford's atomic model, often known as the planetary model, where the atom has a tiny, positively charged nucleus at the centre and mostly empty space where electrons orbit it. Therefore, option (1) is correct.
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#SPJ7
Your question is incomplete but your full question was:
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
What experimental evidence led to the development of this atomic model from the one before it?
A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.Experiments with water vapor showed that elements combine in specific proportions.Equations were used to identify regions around the nucleus where electrons would likely be.Cathode rays were bent in the same way whenever a magnet was brought near them.Briefly (3-5 sentences) summarize cell division in prokaryotic cells.
Answer:
Prokaryotic cells have a ring-shaped nucleus, however it is not fully defined, and thanks to this, their DNA is found unlike eukaryotic cells, scattered in the cytoplasm, an example of a prokaryotic cell is a bacterium, which has Oval shaped
uwu
Hope I help!
HELP PLEASE AND THANKS
Answer:
C is what i would choose
Scientists have evidence that Glossopteris was found in what is now India, Antarctica, Australia, and Madagascar. What does this tell you about the position of the continents 225 million years ago?
Answer:
these continents were joined as a single landmass
Explanation:
Alfred Wegener proposed the 'Continental Drift Hypothesis' which stated continents were joined into a single great landmass called Pangaea. Pangea was a supercontinent that was assembled during the late Paleozoic and early Mesozoic eras, from about 330 to 200 million years ago. During the early Mesozoic, Pangea began to separate into continents observed today. It is for that reason that the same fossils can be found in very different geographic-climatic regions, evidencing that in the past continents were joined into larger landmasses.
Cellular respiration and photosynthesis are processes that have related reactants and products.
Move the slider up or down to compare the processes of photosynthesis and cellular respiration.
How are the processes of photosynthesis and cellular respiration interrelated?
Answer:
both art important
Explanation:
cellular respiration=it is occured in mitochondria.
photosynthesis=sunlight,co2,water,chlorophyll it is in plants.
Both need To organism.
both are relater.
Photosynthesis removes carbon dioxide from the atmosphere and generates oxygen, while cellular respiration releases carbon dioxide into the atmosphere and consumes oxygen.
Photosynthesis refers to the series of metabolic reactions by which plants use carbon dioxide from the atmosphere and sunlight to produce oxygen and simple carbohydrates (i.e., sugars).
Conversely, cellular respiration is a series of reactions by which aerobic cells use oxygen from the atmosphere and the energy stored in the chemical bonds of foods to produce carbon dioxide and ATP.
Photosynthesis reactions can be divided into light-dependent relations and light-independent reactions.
Moreover, cellular respiration has three stages: glycolysis, the acid citric cycle and oxidative phosphorylation.
In conclusion, photosynthesis removes carbon dioxide from the atmosphere and generates oxygen, while cellular respiration releases carbon dioxide into the atmosphere and consumes oxygen.
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Which one of the following is a density-dependent limiting factor for a group of rattlesnakes?
A) Amount of prey
B) Surrounding temperatures
C) Amount of precipitation
D) Soil quality
Answer:
... A disease resulting in the deaths of one third of a dense population of bats in a cave would be a
Which of the following is the most complete and accurate
description of mutation?
A
Three adjacent nitrogen bases of mRNA that code for an
amino acid.
B
The process of matching anticodon sequences in tRNA to
mRNA codons.
С
A spontaneous change in DNA that may lead to cellular
malfunction.
D
A biomolecule composed of amino acids connected by
peptide bonds.
Answer: the answer is C
Explanation: mutation is a change in dna that results in overall structure changes to organisms
A spontaneous change in DNA that may lead to cellular malfunction is the most complete and accurate description of mutation.
In genetics, a spontaneous and unpredictable variation in the sequence of genes that make up the DNA of a living being that introduces specific changes is called a mutation.
This alteration, which can be hereditary, implies a modification of its characteristics.
These types of changes occur spontaneously and naturally, product of errors in the replication of the genome during the phases of cell replication.
From a mutation, the living being can develop different diseases, manifest changes in its organism or hereditary defects.
Despite of this, mutations are key to sustaining high genetic variability, promoting adaptation and evolution (even creating new species in the long run).
Therefore, we can conclude that a spontaneous change in DNA that may lead to cellular malfunction is the most complete and accurate description of mutation.
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What is the relationship between cells tissues?
Question:
What is the relationship between cells tissues?
Explanation/Answer:
A group of cells working together is defined as a tissue and several tissues working together comprise an organ.
Answer:
Tissues are made up of cells
Explanation:
Cells are the most basic units of life; tissues are composed of cells.
The shorter the wavelength the higher the frequency.
Lesson 4.07
Question 4 options:
True
False
Answer:
Your Answer Is False :)
Explanation:
you don't need more info i would just report the guy.. its a very easy question and im sure your already done with the test. i am also taking the test in k12 :)
The shape of each of the molecules is important because
Answer:
The shape of a molecule is important because it is a feature that often determines the fate of a compound regarding molecular interactions.
Explanation:
Answer:answer is 2
Explanation:
Hunter’s velocity was 4.5 m/s. At the end of his race, his velocity was the same. Which best describes his movement?
His movement stopped.
His acceleration is zero.
His time was constant.
His acceleration was positive.
Considering the definition of acceleration, since the speed does not change, his acceleration is zero.
Definition of accelerationA body has acceleration when its speed varies over time, either in magnitude or in direction.
In other words, the acceleration of a body is a physical magnitude that indicates the variation in speed experienced by a body in its displacement as a function of the time spent on it.
Therefore, a moving body is changing acceleration as its speed changes. As speed is a magnitude that considers the speed of a mobile and its direction, the changes that occur in speed will be due to variations in speed and/or direction.
Hunter’s movementHunter’s velocity was 4.5 m/s. At the end of his race, his velocity was the same. Since the speed does not change, his acceleration is zero.
Finally, the correct answer is second option.
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Answer:
B) his acceleration is zero.
Explanation:
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Explain how Carbon is passed from photosynthesis to cellular respiration then back.
The main purpose of photosynthesis is to convert radiant energy from the sun into chemical energy that can be used for food. Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.
https://orise.orau.gov/resources/k12/documents/lesson-plans/intro-to-photosynthesis.pdf
How do a liquid's properties differ from a Solid's properties?
asappp please
Which gas is produced by photosynthesis?
OA.
oxygen
OB.
B. hydrogen
OC.
nitrogen
OD D.
argon
Which basic function of life is exemplified when a single-celled organism uses its eyespot to sense light?
Answer:
Responding to changes in its environment
Explanation:
Light is an environmental factor and being able to sense and react to environmental changes is a function of life
Answer: responce to stimuli
Explanation:
4. According to the Hot Spots and Plumes Lab, there was no evidence that the Pacific Plate has changed direction.
true
false
In DNA replication ______.
A. The two strands of DNA come apart.
B. A copy is made.
C. Each copy has one strand of "old" DNA and one strand of "new" DNA.
D. all of the above
Answer:
you answer to this question is: D all of the above
who do yall think has it worst Boys or Girls
Answer:
i don’t really know
Explanation:
there are five types of nucleotide bases found in living things
Answer:
They are Uracil, Thymine, Guanine, Adenine, and Cytosine.
Explanation:
12. The carbon cycle goes through living systems in the process of:
A) decomposition
B) respiration
C) photosynthesis
D) all of the above
13. During respiration, the herbivore in Figure 4. uses food and oxygen
Answer: D
Explanation: It goes through all that were listed.
ano ang nth time?(=___=)
Answer:
ano ang nth time is 12:30 p.m.
Explanation:
Also can u pls mark me brainliest im new
Um dos princípios da Termodinâmica pode ser enunciado da seguinte forma: "É impossível construir uma máquina térmica operando em ciclos, cujo único efeito seja retirar calor de uma fonte e convertê-lo integralmente em trabalho." Por extensão, esse princípio nos leva a concluir que: *
Answer:
A energia térmica não pode ser criada nem destruída, apenas convertida em outras formas de energia.
Explicação:
Os princípios da termodinâmica nos levam a concluir que a energia térmica não pode ser criada nem destruída apenas convertida em outras formas de energia. Essa energia térmica pode ser convertida em energia mecânica, elétrica e outras formas de energia. A energia térmica também é liberada quando o alimento ingerido pelos herbívoros, apenas 10% da energia é transferida de um nível trófico para outro, enquanto 90% da energia é liberada para a atmosfera.
Write a brief report on the common turtles found along the United States coastline nearest to you. Also write about the measures taken to protect them
Explanation:
Scientists recognize seven living species of sea turtles, which are grouped into six genera. Each sea turtle has both a scientific name and a common name. The scientific name identifies the genus and species, and the common name typically describes some characteristic of the turtle’s body.
Different species of sea turtles like to eat different kinds of food. Sea turtles have mouths and jaws that are specially formed to help them eat the foods they like. And each species of sea turtle eats, sleeps, mates and swims in distinctly different areas. Sometimes their habitats overlap, but for the most part they each have different preferences.