Answer these questions about making a yogurt.
1) why is the milk pasteurized at the start of the process?
2) Why is the mixture of milk and bacteria incubated at 45 °C?
3) what causes the milk to thicken?
4) why does fermentation eventually stop?
5) Explain how making yogurt is a way of preserving the nutrients from milk.
Answers
It should be noted that milk is pasteurized at the start of the process in order to kill bacteria.
The mixture of milk and bacteria is incubated at 45 °C to kill the bacteria.The drop in pH causes milk to thicken. Fermentation is stopped when the alcohol concentration rises to a point where it kills the yeast cells.Lastly, making yogurt is a way of preserving the nutrients from milk as the bacteria ferment the milk thereby turning the lactose sugars to lactic acids.
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Related Questions
14) Besides being prescribed to humans, explain one other ways antibiotics are being used.
15) How was NFL football player Daniel Fells affected by bacteria and antibiotic resistance?
16) What was Alexander Fleming’s contribution to science?
1) Use evidence from the passage and “Rise of the Supergerms” to explain why it is important to search for new antibiotics.
2)According to the passage above, why is it beneficial to study bacteria found in nature to try to discover new antibiotics?
3) Explain the problem the scientists were trying to solve in developing the iChip.
4) Why do you think it is important that bacteria be placed in individual pits in the iChip?
5) Why is the discovery of text actin so important in the fight against antibiotic-resistant bacteria? Use evidence to support the passage and “Rise of Supergerms” to support your answer.
Answers
Antibiotics have different mechanisms of action, but they usually target bacteria vital processes such as protein or cell wall sysnthesis.
What the Tetracycline binds?Tetracycline binds to the 30s and 50s subunits of the ribosome blocking the introduction of new amino acids to the peptide chain being synthetised. Without protein synthesis cells cannot divide, helping the immune system to kill them.
Penicillin inhibits the enzyme involved in the final step of cell wall biosynthesis interrupting bacteria cell division. Bacteria have developed different strategies for the movement of material genetic other than the vertical transmission in mitosis.
Therefore, Antibiotics have different mechanisms of action, but they usually target bacteria vital processes such as protein or cell wall sysnthesis.
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A setpoint is usually:
A). the top of a normal range
B). the bottom of a normal range
C). in the middle of a normal range
D). the point at which changes can no longer occur
Answers
A setpoint is usually: In the middle of a normal range.
What is a setpointA setpoint typically refers to a desired or target value within a normal range. It represents the optimal or ideal value for a particular variable or parameter. The setpoint is often considered the point of equilibrium or balance that is sought to be maintained.
For example, in the context of temperature regulation in a thermostat, the setpoint is the desired temperature at which the thermostat aims to maintain the environment. If the temperature rises above the setpoint, the thermostat activates cooling mechanisms to bring it back to the setpoint.
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How can a particular food item taste sweet, but not give a positive test result for monosaccharides?
Answers
A particular food item may taste sweet, but not give a positive test result for monosaccharides due to the presence of artificial sweeteners in it.
What are Artificial sweeteners?These are referred to as sugar substitutes and are usually added to food to make them taste sweet. They are mostly not made from carbohydrate such as monosaccharides which is why they will give a negative result when tested.
Example of an artificial sweetener is aspartame is an amino acid which consists of phenylalanine and aspartic acid with methyl group, being added to the former thereby resulting in the sweet taste which is observed by people.
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How are proteins used in mating by Japanese beetles
A. They build mitochondria from proteins
B. They use proteins to store lysosomes
C. They send proteins as chemical messages
D. They store proteins in the their large vacuoles
Answers
Answer:
C. They send proteins as chemical messages
Explanation:
In the case of Japanese beetles, the female is the one who attracts the pheromones that have a role in the mating. The pheromones are the chemicals that serve to get a social response from the same species.
The males, however, produce the protein that helps them discover the pheromones which afterwar is sent to the female with the goal of mating.
How are the processes of DNA replication and mRNA transcription different?
Answers
Answer:
The process of DNA replication involves the duplication of the entire DNA molecule, while mRNA transcription involves the synthesis of a single-stranded RNA molecule that is complementary to a portion of the DNA molecule. Additionally, DNA replication occurs in the nucleus of eukaryotic cells, while mRNA transcription occurs in the nucleus (in eukaryotes) and the cytoplasm (in both prokaryotes and eukaryotes).
Explanation:
3. The metric system of measurement is based on the number 1
Answers
What?...............
Which process is represetned by the arrow in the diagram?
Energy Available
for Use by
Living Organisms
Energy
Stored in
Food
a)
growth
b) respiration
c) regulation
d) photosynthesis
Answers
Answer:
photosynthesis
Explanation:
photosynthesis is the process by which food is gotten from the sun
The body is made up of systems that work together so that an organism can survive and grow. The muscular system contains muscles that move the body. How does the circulatory system help the muscles to function?
A.
by transporting oxygen that can be used by the muscles to produce energy
B.
by transporting carbon dioxide that can be used by the muscles to produce energy
C.
by transporting carbon dioxide that can be used by the muscles for sensing information
D.
by transporting oxygen that can be used by the muscles for sensing information
Answers
Answer:
either a or d.
can you identify the type(s) of nucleic acid to which each of the following structures belong?
Answers
tRNA, mRNA, and rRNA are examples of nucleic acids with RNA (ribonucleic acid) as their primary structural component. RNA is a single-stranded nucleic acid that is essential for the production of proteins.
During translation, tRNA (transfer RNA) transports amino acids to the ribosome where they are put together into a polypeptide chain. The messenger RNA (mRNA) transports genetic data from the nucleus's DNA to the ribosome, where it is converted into a protein. The ribosome, a molecular device that performs protein synthesis, contains rRNA (ribosomal RNA). From the transcription of DNA through the translation of proteins, RNA is fundamental to the process of gene expression.
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--The complete Question is, Which type(s) of nucleic acid do the structures of tRNA, mRNA, and rRNA belong to? --
Artificial insemination is the primary breeding method used with?
Answers
The process that makes ethanol by converting in ADH into NAD+ to keep glycolysis running under anaerobic conditions is called_____And why is it not called the Calvin cycle
Answers
Answer:
Krebs cycle is the answer
PLEASE ANSWER ASAP!! WILL GIVE 25 POINTS!!
Answers
According to the diagram, it can be concluded that the allele for this trait is dominant, this is proven with individuals such as 8 and 9.
How can the allele for this trait be classified?In genetics, alleles for traits can be classified as dominant if the trait is expressed over others known as recessive traits or alleles. In this case, the trait can be considered dominant because when an infected individual has offspring with a non-infected individual or a healthy individual this leads to the offspring being infected.
This occurs in individuals such as 8 or 9, as one of the parents had the dominant allele.
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Cuales son 3 biomoleculas organicas que tenga el oxigeno?
Answers
Bioelementos primarios,Bioelementos secundarios,Oligoelementos
Kon, a pharmaceutical research scientist, developed a petental drug that is being tested to fearn if the chenical tistative colve Ki.KF-1, can slow the symptoms of the neurologicaly degenorative Creutideld uskab Disease Kcon is nowiced is neot the chemical and physical properties of the potential pharmaceutical. The mass of a KLKF-1 sample is 331mg What in the inam tr? the KLKF-1 sample in grams?
33.3 g
3.33×10
4
g
0.0333 g
3.33 g
Answers
The correct answer is D. 3.33 g. In this problem, Kon has developed a potential pharmaceutical drug called KLKF-1.
The mass of a substance is a measure of the amount of matter in that substance. The unit of mass is the gram (g), which is defined as the amount of matter in 1 cubic centimeter of a substance.
To convert milligrams (mg) to grams (g), we need to multiply the mass in milligrams by 1,000. This is because 1 gram is equal to 1,000 milligrams. Therefore, to convert 331 mg to grams, we can multiply 331 by 1,000
since there are 1000 grams in 1 kilogram (which is abbreviated as kg).
Therefore, the mass of a KLKF-1 sample in grams is:
331 mg × 1000 g/mg = 3310 g.
Therefore, the KLKF-1 sample weighs 3310 grams.
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some animals, such as sea anemones, can reproduce themselves both sexually (through mitosis alone) and sexually (creating egg and sperm through mitosis). discuss one situation where it would be advantageous for a sea anemone to reproduce asexually. discuss one situation where it would be advantaguos for a sea anemone to reproduce sexually
Answers
Asexual reproduction can be beneficial for a sea anemone when the environment is unpredictable and there is a need for quick adaptation. In this case, asexual reproduction can create a large number of genetically identical individuals in a short amount of time. This can give the species a better chance of survival in a rapidly changing environment.
Sexual reproduction can be advantageous for a sea anemone when there is a need for genetic variation. Sexual reproduction creates offspring with a combination of genetic material from both parents. This increased genetic diversity can help the species adapt to fluctuating environmental conditions. Additionally, it can help the species survive over longer periods of time due to the increased genetic variation.
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4. If a mother and father are both heterozygous for Brown hair (B) over blond hair (b), what will their offspring look like?
Answers
Answer:
Their offspring will
also he born with brown hair due to
the heterozygous for Brown Hair from their parents
Mark places some cells from an onion skin on a microscope slide. He uses a freshwater solution to make the wet-mount slide. When he observes the cells under the microscope for an extended period of
time, what is he most likely to see?
A) The cells have dissolved, destroying the cell walls
B) The cells have shrunk within the cell walls
C) The cells have not been affected by the solution
D)The cells have swollen, expanding the cell walls
Answers
Answer:
D
Explanation:
Answer:
D
Explanation: All the way
Which of these are one of the branches of
Science?
A. Scientific observation
B. Scientific Method
C. Measurement tools
D. Life Science
Answers
Answer:
c.measurement tools
Explanation:
it's obviously not a branch of science
Answer:
D. life science
a is part of the scientific method
b is part of all science
c is tools used in science.
Determine the complementary RNA and the amino acids
Answers
Explanation:
this is your answer I hope so it is helpful for you
Hypotheses, theories, and laws all explain observations about the natural world, but in different ways.
A
is a statement of fact that is generally accepted to be true and universal because it has always been observed to be true.
Answers
Answer:
Explanation:
DONT KNOW SORRY
Correct the image. Draw what it should look like for the potential crosses in the P generation.
Answers
The genotype of the parent with incomplete genotype in P generation for the given test cross should be Hh.
Genotype is the genetic constitution or makeup of an individual. It depicts the complete set of genes. The genotype is responsible for the different characteristics or traits.
Test cross is the type of cross performed to know the genotype of the dominant trait. In this the unknown genotype is crossed with a recessive set of alleles. If the cross gives any recessive offspring then the unknown genotype is heterozygous for the dominant trait. This is the reason why the given cat in the image has Hh genotype as one of the offspring has hh genotype.
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A sarcomere that is at a resting length of 1. 7um will generate __________________ force compared to a sarcomere at 2. 15um.
Answers
A sarcomere that is at a resting length of 1. 7um will generate less force when compared to a sarcomere at 2. 15um.
As the actin and myosin filaments are best aligned when sarcomeres are at their resting length, this produces peak tension. As sarcomere length decreases, actin filaments are drawn along myosin filaments, which in turn draws the z-lines nearer to the myosin filaments. In the formula, 2T represents the separation between bands 1 and 2. T is the halfway point between 1 and 2.
Divide the measurement from 1 to 2 in mm by 2. Frequently, the ideal muscle length is the length at which it can produce the most active force. If the muscle length doesn't change but the muscle tension does, then the contraction is said to be isometric.
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No fossil evidence remains from ancient species that lacked bones. TRUE or FALSE?
Answers
During the fall when temperatures drop and days shorten, why do tree leaves change color and fall of trees?
A the drop in temperature damages and kills the leaves
B the tree has stored enough energy and no longer needs the leaves
C the tree receives signals from other plants and trees
D the change in day length causes hormone levels to change
Answers
During the fall when temperatures drop and days shorten, the tree leaves change color, and the fall of trees because of the change in day length causes hormone levels to change, option (D) is correct.
The change in color and subsequent shedding of leaves during fall is primarily due to the change in day length, which causes hormone levels to change in trees. As days become shorter, trees receive signals to begin preparing for winter.
This triggers a decrease in the production of chlorophyll, the pigment that gives leaves their green color and enables photosynthesis. Other pigments, such as carotenoids and anthocyanins, become more visible, leading to the vibrant reds, oranges, and yellows often seen during autumn. The tree cuts off the flow of nutrients to the leaves, causing them to die and fall off, option (D) is correct.
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4. What is the name of the molecule used during photosynthesis to provide the energy to make glucose?
ATP
carbon dioxide
chloroplast
chlorophyll
Answers
Answer:
Cholorophyll
Explanation:
Answer:
d
Explanation:
just took the quiz
Which statement best describes starch and cellulose?
A). Plants use starch for immediate energy, while cellulose is stored energy.
B). Plants use cellulose for immediate energy, while starch is stored energy.
C). Plants use cellulose to store energy, while starch is used for structure.
D). Plants use starch to store energy, while cellulose is used for structure.
Answers
Answer:
D- plant use starch to store energy while cellulose i used for structure
Starch is a carbohydrate store, breaks down to release energy and cell wall is made up of cellulose. Therefore, option (D) is correct.
What is the difference between starch and cellulose ?
Starch and cellulose are both polysaccharides found in plants. But both are different in various ways :
Starch is made up from alpha- glucose and can be straight or branched. It can form complex structures. The linkage is different from cellulose which makes it easy to break down thus store and release energy.
The sturdy formation of plant cell walls is greatly aided by cellulose, a hard, fibrous, and water-insoluble polysaccharide. It has a linear structure with beta-d-glucose linkage. Green plants, several types of algae, and oomycetes all have basic cell walls made primarily of cellulose.
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Which training zone is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol?.
Answers
The zone which is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol is 50 - 60%.
What is high blood pressure?The condition known as high blood pressure often makes the heart to pump blood at a greater pressure than is necessary. This may be caused by blockade of the blood vessels by cholesterol.
Thus, the zone which is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol is 50 - 60%.
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epidemiological studies are investigations carried out when disease or death occurs in unexpected or unacceptable numbers
Answers
"Epidemiological studies are investigations carried out when disease or death occurs in unexpected or unacceptable numbers" is True as the epidemiological studies are investigations that are carried out when disease or death occurs in unexpected or unacceptable numbers.
These studies aim to identify the cause and source of the disease or death, and to determine how it can be prevented or controlled. Epidemiological studies are typically conducted by public health professionals and involve collecting and analyzing data from a specific population.
The data is then used to make recommendations for preventing or controlling the spread of the disease or reducing the number of deaths.
Epidemiological studies are an important tool in the field of public health and are essential for preventing and controlling outbreaks of disease.
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Complete question:
"Epidemiological studies are investigations carried out when disease or death occurs in unexpected or unacceptable numbers" is the given statement is true or false?
The initial steps in gene expression are modeled below. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?
Answers
Answer: The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.
High-altitude cirrus clouds are primarily formed from which substance?
A.
ozone molecules
B.
nitrogen compounds
C.
carbon dioxide gas
D.
solid ice crystals
Answers
Answer:
D. Solid Ice Crystals
Explanation:
"Cirrus clouds are wispy, curly, or stringy. They are found high in the atmosphere—typically higher than 6,000 meters (20,000 feet)—and are usually made of ice crystals." -National Geographic