Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them.
Explanation:
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Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more.
If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them. This reaction can lead to the symptoms of swelling and inflammation that we see, for example, in an infected wound.
A Scientist discovers a chemical that she thinks might be a potential treatment for a certain type of cancer cell. In order to test her hypothesis, the scientist treats one plate of cancerous cells with the newly discovered chemical, and leaves another plate of cancerous cells untreated. After 7 days, the scientist measures the number of living cells in each plate. The scientist finds that the cells treated with the chemical have a lower survival rate than cells left untreated. The scientist further observes that the substance has an effect on the Rough endoplasmic reticulum (RER). How might disabling the rough ER potentially hurt the cancerous cells? Be specific in your answer. What is the dependent variable? What is the independent variable?
Answer:
Affecting the ER causes alteration in cell homeostasis and eventual death.Independent variable: Drug or chemicalDependent variable: Cancer cells survival.Explanation:
Hypothesis ⇒ A chemical ⇒ might be a potential treatment for cancer cells.
Experiment:
Treated ⇒ One plate of cancerous cells with the new chemicalUntreated ⇒ Another plate of cancerous cells with no chemical7 days later ⇒ the number of cells in each plate
Results:
Cells treated with the chemical have a lower survival rate than cells left untreated.
Treated plate ⇒ fewer cellsUntreated plate ⇒ more cellsChemical affects the Rough endoplasmic reticulum (RER)
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The endoplasmic reticulum is in charge of many cellular functions, such as protein folding, maturation, and transport, especially those destined for secretion. It produces the latest protein modifications after transduction.
When the synthesizing protein gets in the Rough endoplasmic reticulum, it continues its building in the organelle. Finally, the protein suffers folding and the initial stages of glycosylation.
Once the protein synthesis in the endoplasmic reticulum is over, these molecules are packaged into vesicles and sent to the Golgi complex for their final association with carbohydrates. Finally, protein leaves the Golgi complex and goes to its final destiny.
Any alteration in the intracellular environment
inevitably affects the organelle and its functions. When the organelle is not properly working, proteins synthesis is affected and, consequently, all the cellular activities. The affected cell homeostasis might be so altered that the cell ends dying.
If the drug affects the ER by altering its environment or directly affecting it, the organelle will fail to perform its functions, and the cell will eventually dye.
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The independent and the dependent variables are the two principal factors needed in an experiment.
Independent variable: Refers to all the variables in an experiment that provoke a response in another variable. The independent variable changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.
In the exposed example, the independent variable is the drug that affects the cancer cells. The researcher decides to apply it or not, and the concentrations in which the drug is.
Dependent variable: Refers to the variable that reacts to the changes produced in the independent variable. Depending on how the independent variable is modified, the dependent variable change. It is usually identified by the letter Y.
In the exposed example cell survival is the dependent variable. Cancer cells respond to the presence/absence of the chemical, and might differently respond to the varying concentration of the drug.
1. the movement of water into area with high concentration of dissolved solutes in order to equal out the solute concentration is
a) concentration
b) diffusion
c) osmosis
d) blood oxygen level
Can someone help me!
Answer:
1. Food is broken down
2. Food is mixed
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Organisms use glucose to store and transport energy.
True
False
Answer:
Glucose and ATP are used for energy by nearly all living things. Glucose is used to store and transport energy, and ATP is used to power life processes inside cells. Many autotrophs make food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose.
Explanation:
Most organisms use glucose and ATP for energy. ATP powers cells, and glucose stores and transports energy. Photosynthesis converts sunlight into glucose for many autotrophs.
What do organisms use to store and transport energy?All living things use ATP and glucose as energy sources. Energy is stored and transported by glucose, and cellular life functions are powered by ATP. Through the process of photosynthesis, which converts solar light energy into chemical energy that is stored in glucose, many autotrophs produce food.
Glycogen is the name given to this form of glucose that is stored and is composed of several linked glucose molecules. Glycogen is broken down to release glucose into the bloodstream, which is then used as fuel for the cells, when the body needs a sudden surge of energy or when the body isn't obtaining glucose from food.
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Weak carbonic acid naturally found in rainwater will cause _____________.
A. Slow chemical weathering
B. Rapid physical weathering
C. Slow physical weathering
D. Rapid chemical weathering
Answer:
slow chemical weathering
Which base does Adenine pair with in RNA?
A. Uracil
B. Guanine
C. Thymine
D. Cytosine
Answer:
A. Uracil would be the answer.
1. What are the four components of Physical Fitness?
Explanation:
Muscular Strength
Muscular endurance
Flexibility
Body Composition
The DNA of a prokaryote is arranged in a single coiled chromosome located in a region called the ____________ . Some prokaryotes carry genes on extrachromosomal pieces of circular DNA called ____________ .
Answer:
1. Nucleoid
2. Plasmid
Explanation:
Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.
However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.
A newly transplanted organ is rejected by the immune system of the host. Which protein is responsible for the rejection
Answer:
Histocompatibility antigens are encoded on more than 40 loci, but the loci responsible for the most vigorous allograft rejection reactions are on the major histocompatibility complex (MHC).
Explanation:
Transplantation involves transferring from one site to another of cells, tissues or organs, often among people. An organ transplant (eg, kidney, liver, cardiac, lung, or pancreas) from a donor may rectify organ malfunction.
The immune system remains as a standard medical treatment the greatest barrier to transplantation. An effective and intricate mechanism has been evolved in the immune system to fight off invading invaders. These systems also contribute to the refusal of the transplanted bodies that are recognized by the immune system of the receiver as foreign.
Identify the structures in the cell pictured on the right:
Label A
Label B
Label C
Label D
Label E
Options:
1.DNA
2.Nucleus
3.Cytoplasm
4.Cell Membrane
5.Ribosomes
Answer:
1d
2a
3b
4e
5c
is the correct answer for questions
Answer:
B
C
E
A
D
Explanation:
correct edg 2021
Select from the drop-down menu to correctly complete this statement.
Inside the chromosomes are molecules that contain all information an organism needs to grow and reproduce. This is its __________.
Answer:
DNA
Explanation:
DNA's are the molecules that present inside the chromosomes.They contain all the information an organism needs to grow and reproduceDNA stands for deoxyribo neuclic acidHello there can anyone help me?
i have to do a project for biology and i could use some help
Which organism has the most energy available?
A.Hen
B.Plant
C.Fox
D.Caterpillar
Answer:
B.Plants
Explanation:
They are considered as autotrophs because they manufacture their own food and have the highest amount of energy.
While preparing for her examination, Jenny has been reading late into the night. What is one precaution that she can take to prevent damage to her eyes?
Answer:
Taking breaks outside every half hour to reduce eye stress.
Explanation:
Answer:
she should have proper lighting in the room.keep the book at a proper distance from the eyes. Not too close and not too far. Take breaks in between and splash water on the eyes. This is important especially if she is reading from a screen.Please mark me as brainliest.
Severe combined immunodeficiency (SCID): Group of answer choices is a result of the absence of macrophages or B cells. affects only part of the adaptive immune response. can be caused by failure of TAP transporters. is caused by the lack of T cell and B cell maturation/differentiation.
Answer:
is a result of the absence of macrophages or B cells.
Explanation:
Severe combined immunodeficiency (SCID) results due to the absence of macrophages or B cells that is responsible for the immunity of our body. Severe combined immunodeficiency (SCID) is an inherited immunodeficiency disease (PIDD) that presents in infancy results in a weak immune system that is unable to fight against even mild infections so due the absence of macrophages or B cells, the body is vulnerable to diseases.
In a normal conception (fertilization of egg and sperm), due to the processes crossing over and independent assortment:
Answer: Hello your question is missing below is the intended question
Which of the following supports genetic diversity?
A- Independent Assortment
B-independent assortment and crossing-over support genetic diversity
C-Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity
D-Fertilization of an egg by a sperm
E-Crossing-over
answer :
Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity ( C )
Explanation:
The processes that supports Genetic diversity are ; Fertilization of egg and sperm, Independent assortment and processes of crossing over
Genetic diversity is the simply the variations seen in genetic composition among a population or specie.
Match the type of ELISA with what it is used to detect. Question 2 options: detects presences and concentration of antigen/protein detects presences and concentration of antibody 1. indirect ELISA 2. sandwich ELISA
Answer:
ELISA is a technique of enzyme linked immunosorbent assay.
Explanation:
The full form of Elisa is enzyme linked immunosorbent assay. The ELISA technique is a boichemical technique that is used to measure the amount of protein or the antibody in a solution and is divided into three types :
Competitive ELISADirect ELISA or Sandwich ELISAIndirect ELISA1. Indirect ELISA --- detects the presences and concentration of the antibody.
2. Sandwich Elisa or Direct ELISA --- detects the presences and concentration of the antigen/protein.
True or false: Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.
Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.
Answer: True
When Adenosine Triphosphate is used, it breaks down into:
A. Glucose
B. It doesn't break down
C. Thymine Triphosphate
D. Adenosine Diphosphate
Answer:
D. Adenosine DIPHOSPHATE
Explanation:
ATP is hydrolysed to ADP in the reaction ATP+H20->ADP +Pi + energy
When Adenosine Triphosphate is used, it breaks down into Adenosine Diphosphate.
Adenosine diphosphate (ADP)
Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells. ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atoms of ribose. The diphosphate group of ADP is attached to the 5’ carbon of the sugar backbone, while the adenine attaches to the 1’ carbon.
ADP can be interconverted to adenosine triphosphate (ATP) and adenosine monophosphate (AMP). ATP contains one more phosphate group than does ADP. AMP contains one fewer phosphate group. Energy transfer used by all living things is a result of the dephosphorylation of ATP by enzymes known as ATPases. The cleavage of a phosphate group from ATP results in the coupling of energy to metabolic reactions and is a by-product of ADP.ATP is continually reformed from lower-energy species ADP and AMP. The biosynthesis of ATP is achieved throughout processes such as substrate-level phosphorylation, oxidative phosphorylation, and photophosphorylation, all of which facilitate the addition of a phosphate group to ADP.
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The outer planets are made mostly of gas which makes them
Answer:
The four outer planets are all gas giants made primarily of hydrogen and helium. They have thick gaseous outer layers and liquid interiors. The outer planets have numerous moons, as well as planetary rings.Carryonlearning
Difference between plants in a tropical location, a temperate location, or the tundra?
Answer:
a tropical location as an area near the equator a temperate location is any area that that lies between the tropical and polar zones and a tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.
If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development? Group of answer choices a compound that inhibits enzymes by significantly changing the pH throughout the body a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods
Answer:
The correct answer is - a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract.
Explanation:
In the given all the situation or conditions that is practical and possible it the drug that develop to treat high blood pressure by reversibly inhibiting an enzyme that catalyzes the chemical that leads to constirctions of the blood vessels.
These chemical cause blood vessel constrict and that leads to high blood pressure therefore inhibiting such enzyme that use to produce these chemical is a practicle solution for high blood pressure.
Select which statements are a part of natural selection.
organisms better adapted to their environment tend to survive
organisms better adapted to their environment tend to reproduce and increase in number
organisms pass on their traits to succeeding generations.
over time, favorable traits become more common in a population
Answer:
organisms better adapted to their environment tend to reproduce and increase in number
Answer: *organisms better adapted to their environment tend to survive
*organisms better adapted to their environment tend to reproduce and increase in number
*organisms pass on their traits to succeeding generations.
*over time, favorable traits become more common in a population
Explanation: all of them are correct :)
observe the given relation and fill in the blanks cucumber: tendril citrus: meiosis: reduction division mitosis:
Answer:
citrus: thorns
mitosis: equational division
Explanation:
From the relationship:
Tendrils are thread-like appendages found in most climbing plants. They primarily function as supporting organs for climbing plants (such as cucumber) by stretching out and twinning around physical supports. The equivalence of this in citrus is the thorn.
Meiosis is a reductional cell division in which the chromosome number of the daughter cells is half of that of the other cells. Mitosis is equational division because the chromosome number of the parent cell is the same as that of daughter cells.
Peritoneal dialysis uses which type of cell transport?
Answer:
Peritoneal dialysis involves diffusion and osmosis through the highly vascularized peritoneal membrane.
Which organism exhibits behavioral adaptation?
an owl with large pupils and eyes that enable it to see better at night
a possum playing dead to increase its chances of survival
an insect that mimics its environment to hide from its predators
a desert plant that sheds its leaves to lessen water loss during the dry season
Answer:
B
Explanation:
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A possum playing dead to increase its chances of survival is an example of behavioral adaptation.
What is Behavioral adaptation?
This is an action an organisms does to increase survival rate when faced with some situations.
A good example is the possum which acts dead when faced with predators so as not to be killed which is why option B was chosen.
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Which part of the eye is simply an opening through which light passes?
iris
lens
pupil
retina
Answer:
Retina
Explanation:
The opening in the middle of the iris through which light passes to the back of the eye. Retina.
A teacher gave the lab group shown below an "unsafe practice" warning. What is most likely the basis for the teacher's warning?
There is a new trend to focus on dopamine receptor sensitivity rather than on dopamine itself because
Answer:
There is no scientific evidence to prove that people with schizophrenia ingest dopamine capable of accumulating excess in the body.
Explanation:
Although you did not specify that your question is associated with the origin of schizophrenia in people, we can see that this is the main topic of your question, due to its context. This is because scientists have been striving to find the origin of this disease, in order to be able to combat it in the early stages. Although many scientists believe that the origin of this disease is associated with excessive intake of dopamine, there is not strong enough scientific evidence to show that this is true. Because of this lack of evidence, filmmakers have focused on associating the origin of the disease with the sensitivity of the dopamine receptor and not with the dopain itself.
where can we find most of the gases ? to the left or right section ? explain .