The endoplasmic reticulum is an organelle in eukaryotic cells. The structure of endoplasmic reticulum consists of flattened sacs and tubules called cisternae.
The ER is divided into two distinct regions: the rough endoplasmic reticulum (RER) and the smooth endoplasmic reticulum (SER).
1. The rough endoplasmic reticulum is a type of endoplasmic reticulum that is covered with ribosomes on the cytoplasmic side of the membrane, providing a larger surface area for protein synthesis. Ribosomes, which are responsible for assembling proteins, are located on the surface of the rough endoplasmic reticulum, giving it a ribosome-dotted appearance under a microscope.
2. The smooth endoplasmic reticulum is a type of endoplasmic reticulum that is not associated with ribosomes. It is made up of tubules that lack ribosomes, and it performs various metabolic processes, such as lipid metabolism and drug detoxification.
These processes take place on the membrane's surface, which provides a larger surface area for biochemical reactions to take place.
Functions of endoplasmic reticulum are:
1. Protein synthesis:
Endoplasmic reticulum is responsible for protein synthesis in the cell's cytoplasm. The rough endoplasmic reticulum, which is covered with ribosomes, is primarily responsible for protein synthesis. The ribosomes are responsible for decoding messenger RNA (mRNA) and assembling amino acids into proteins.2. Lipid metabolism:
The smooth endoplasmic reticulum is primarily responsible for lipid metabolism. The endoplasmic reticulum is involved in synthesising phospholipids, a critical component of cellular membranes. Additionally, the endoplasmic reticulum is involved in the synthesis of cholesterol, which is a necessary component of cell membranes. The smooth endoplasmic reticulum carries out the detoxification of drugs and other harmful substances.A few of the significant differences between the smooth endoplasmic reticulum and the rough endoplasmic reticulum are:
The rough endoplasmic reticulum (RER) is involved in protein synthesis, whereas the smooth endoplasmic reticulum (SER) is involved in lipid metabolism and detoxification. Ribosomes are associated with the RER, whereas the SER lacks ribosomes. The RER is more densely packed than the SER.Learn more about structure of endoplasmic reticulum: https://brainly.com/question/18799166
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Which process results in a cell containing the same DNA as its parent cell? mitosis meiosis gamete formation fertilization
Answer:
The correct answer would be A. mitosis.
Explanation:
Mitosis is a type of cell division which results in the formation of two daughter cells each containing same DNA as its parent cell.
It usually takes place in somatic cells of eukaryotic organisms.
It helps in growth and repair of cells or tissues in multi-cellular organisms.
In contrast, meiosis takes place in germ cells to produce haploid gametes. Gametes contains half the number of chromosomes present in parent cell. In addition, crossing over takes place in meiosis which results in the genetic variation.
Answer: The answer is A.
Explanation: Because I got it correct.
Who were the four main scientists involved in the discovery of the structure of DNA Why were only three of them awarded the Nobel Prize?
Answer:
The four main scientists involved in the discovery of the structure of DNA are Francis Crick, James Watson, Maurice Wilkins and Rosalind Franklin. Only three of them were awarded the Nobel prize because it was not awarded posthumously.
Explanation:
Rosalind Franklin was instructed by Dr Wilkins to conduct research on the DNA structure using X-ray crystallography. However, the final image that was obtained by her was shown by her student to Wilkins who showed it to Watson. Therefore, there are four main scientists who contributed to the discovery of the DNA structure. The Nobel prize was not given to her because she succumbed to ovarian cancer, four years before the prize was given. Nobel prizes were not given posthumously therefore, only three of them were awarded.
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in pea plants, axial flowers are dominant to terminal flowers. what is the expected phenotypic ratio of a cross between two pea plants that are heterozygous for the axial flower gene? multiple choice question.
3 axial : 1 terminal, is the expected phenotypic ratio of a cross between two pea plants that are heterozygous for the axel flower gene.
What are heterozygous plants?
Heterozygous plants are plants that have two different alleles for a trait. They usually have one dominant allele and one recessive allele, so they express a mixture of traits. For example, if two plants are both heterozygous for flower colour, one with a red allele and one with a white allele, then the offspring of the two plants will be red and white flowers.
Axial flowers are dominant to terminal flowers, so when two pea plants that are heterozygous for the axial flower gene are crossed, the expected phenotypic ratio of the offspring will be 3 axial flowers to 1 terminal flower. This is because the dominant allele (axial flower) is expressed in the heterozygous offspring, while the recessive allele (terminal flower) is only expressed in the homozygous recessive offspring.
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Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part E How would you conduct your investigation? In your answer, explain your independent and dependent variables.
Answer
no . you should give one plant natural fertilizer and the other artificial fertilizer to decide which works the best
Explanation:
because it is made for tomatoes
Answer:
part E
The dependent variable is the growth rate of the plant. The independent variable is the type of fertilizer used over time. There will be three groups of tomato plants raised from seed: one group will be a control group without any fertilizer, the second group will be planted in soil with artificial fertilizer, and the third group will be planted in soil with compost. The height of the plants will be measured every five days, over a 30-day period.Explanation:
Cuales son las caracteristicas y organos q desarrolla el embrion y el feto por trimestre
Answer:
Su bebé crecerá más y aumentará de peso más rápido. Sus órganos y partes del cuerpo continuarán desarrollándose. Las uñas de las manos y los pies comienzan a formarse y los riñones comienzan a funcionar. Al final del primer trimestre, su bebé ha triplicado su longitud a aproximadamente 3 pulgadas de largo.
Which of the following factors decreases blood flow?
Decrease in blood viscosity
Increase in blood pressure
Increase in the resistance of a blood vessel
Increase in overall blood volume
Answer:
increase in the resistance of a blood vessel
Explanation:
if there's more resistance then it's decreasing. like friction
Clouds located near Earth's surface are called
Answer:
In the troposphere, cumulonimbus (and associated mammatus clouds), cumulus, and stratocumulus clouds form from the process of heating.
Explanation:
The types of clouds that form from the process of surface heating are cumulonimbus (and associated mammatus clouds), cumulus, and stratocumulus. In contrast to surface heating, the cooling of the Earth's surface leads to the development of fog and stratus clouds.
Carbohydrates lipids proteins and nucleic acids are important molecules in living organisms. These large structures have similarities, however they have certain differences that may be used to distinguish them.
Which of the following statement best describes the macromolecules ?
A) Oxygen and phosphate are found in carbon hydrates
B) Nitrogen atoms are found in proteins and lipids
C) Nitrogen and an R-group are present in proteins and nucleic acids
D) Hydrogen , carbon and oxygen atoms are present
D) Hydrogen , carbon and oxygen atoms are present
The statement that best describes the macromolecules is Hydrogen , carbon and oxygen atoms are present. Thus, option D is correct.
What is Carbohydrates?
Carbohydrates is defied as that contains biomolecule that contains carbon hydrogen and oxygen in a ratio of 2:1. Carbohydrates are mane source of energy of the body they work as fuel for the brain, kidneys central nervous system and heart muscle.
\(Cn(H2O)n\) is the basic formula for all carbohydrates . But this formula have limitation i.e it applies where same amount of carbon and water are use. Initially the terms carbohydrate was used to describe compounds that have really contains carbohydrates. Because they had simple formula \(CH20.\)
In modern Era carbohydrates are classified on the basis of their structure not on their formulae. Such as aldehydes and ketones are now known as polyhydroxy. Carbohydrates provides glucose to the body and, thereby, long lasting energy.
Therefore,The statement that best describes the macromolecules is Hydrogen , carbon and oxygen atoms are present. Thus, option D is correct.
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what are the most economically 'productive disasters'?
Answer:
1. Disasters increase scarcity and reduce the output of economies.
In simplest terms, inputs are necessary for outputs; fewer inputs means fewer outputs. When a disaster damages or destroys resources – whether labor, capital, or natural resources – total production in the economy must fall.
The production possibilities frontier (PPF) is used by economists to model “production possibilities” – the output possible in an economy making full use of its available resources. The PPF shrinks when disasters reduce the availability of the resources used to make goods and services.
Explanation:
what is the relationship between the cenotes and the lush forests at the surface
grass or leaves i think
why do birds have short necks? pls help :/
Most diving birds have (relatively) long necks and shorts legs, although their necks aren't as long as say herons, storks or egrets. Take the common loon for instance. Their necks can be up to half as long as their bodies but their legs are so short and set so far back that they are very awkward on land.
is it possible to increase your IQ?
Answer: yes
Explanation:Although science is on the fence about whether you can raise your IQ or not, research does seem to suggest that it's possible to raise your intelligence through certain brain-training activities. Training your memory, executive control, and visualization reasoning can help to boost your intelligence levels.
Which of the following is NOT true about homeostasis?
A - Maintaining homeostasis requires that all body systems work together.
B - Long periods of stress can disrupt homeostasis.
C - Body temperature is a factor of homeostasis.
D - Only the nervous and endocrine systems are involved in maintaining homeostasis.
In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
Patterned vegetation is a vegetation community that exhibits distinctive and repetitive patterns.
Patterned vegetation refers to the spatial arrangement and distribution of different plant species or vegetation types that form distinct patterns on the landscape.
These patterns can be observed at various scales, ranging from small patches to large-scale formations, and they often result from interactions between the environment, ecological processes, and plant species. The formation and maintenance of patterned vegetation are influenced by complex interactions between biotic and abiotic factors.
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Your question is incomplete, most probably the full question is this:
In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
HELP QUICK GIVING BRAINLIEST Data Analysis - Plant ranking:
1
2
3
4
5
6
7
Answer:
1.Sea oats
2.European beach grass
3.American beach grass
4.Bitter panicum
5.Salt meadow cord grass
6.Seashore elder
7.Coastal panic grass
Explanation:
HELO ME PLEASE IM BEING TIMED
Describe the characteristics of a neutralization reaction how it is identified and types of compounds in the reactants and products
A neutralization is a double displacement reaction in which one of the products is water. In a neutralization reaction, there will be an "H" in one reactant and an "OH" in the other reactant. One of the products will water, H-OH (H₂O). and is a double displacement reaction.
The characteristics of a neutralization reaction are the formation of a salt and water.
A neutralization reaction is a type of reaction in which an acid and a base react to form water and a salt.
A salt is an ionic compound containing a cation and an anion that are not H+ or OH-.
Examples of neutralization reaction:
Acid + Base → Salt + WaterHCl + NaOH → NaCl + H₂O
Identification of neutralization reaction:The characteristics of a neutralization reaction are the formation of a salt and water. The pH of the solution will be neutral (pH = 7) after a neutralization reaction.
Types of compounds in reactants and products:
Reactants: In a neutralization reaction, an acid and a base are the reactants. The acid is a proton donor, while the base is a proton acceptor. The acid and base will always be in an aqueous state.
Products: In a neutralization reaction, the products are salt and water. The water is a neutral molecule that is formed by the reaction of H+ and OH-. The salt is an ionic compound composed of a cation from the base and an anion from the acid.
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what is a geologic time column?
Answer: A Columnar diagram that shows the rock formations of a locality or region and that is arranged to indicate their relations to the subdivisions of geologic time
Explanation:
The French scientist Jacques Monod famously said, "Anything found to be true of E. Coli must also be true of elephants." How is this statement based on the notion that living organisms share a common ancestor?
Answer:
The correct answer is : prokaryotic organisms like E. coli and higher organisms share common ancestor.
Explanation:
E. Coli is a prokaryotic organism or bacteria. On the metabolic level these organisms share similar homology with the higher organism other than this these organisms also show same core functions with higher level organisms such as elephant.
These similarities suggest that the all the living organisms share a common ancestor. The french scientist Jacques Monod statement "Anything found to be true of E. Coli must also be true of elephants." is also based on this notion.
"Machines are data hungry. Human are data efficient". support statement with four justifications.
Answer:
Machines are data hungry because they require large amounts of data for training and decision-making. Humans, on the other hand, are data efficient due to their cognitive abilities, generalization skills, contextual understanding, and creativity. Humans can process information effectively, draw upon prior knowledge, adapt to new situations, and make decisions with minimal data inputs
What factors should be considered when building an animal crossing?
Answer:
Don't Add Every Other Player As A Best Friend. You may be excited to jump on a forum to …
Don't Place Your Buildings Too Close To Each Other. Another huge mistake players make …
During the first few days of the game, you may find yourself with a small amount of
Explanation:
is limestone an acid or base
Answer:
it's a base
Explanation:
has pH of 9.9
One major difference between animal cells is___
A)Plant cells produce their own food/energy, animal cell can’t
B)Animal cells contain DNA, plant cells dont
C)Plant cells can divide and replicate, animal cells can’t
D)Animal cells are more complex than plant cells
Answer: I believe the answer is D.
Explanation:
Animals are more complex.
Within physiological limits, a slowing of heart rate allows for a longer ventricular diastolic filling time. This results in:
a. a reduction in blood pressure
b. a larger stroke volume
c. a more forceful systolic ventricular contraction.
A slowing of heart rate allows for a longer ventricular diastolic filling time, which can lead to a larger stroke volume and a more forceful systolic ventricular contraction. The correct answer is option c.
During diastole, the heart is relaxed, and blood is able to flow into the ventricles. The longer the ventricular diastolic filling time, the more blood is able to fill the ventricles, leading to a larger volume of blood that can be pumped out during systole.
This increased stroke volume, combined with a more forceful contraction, results in a greater amount of blood being ejected with each heartbeat.
However, it is important to note that a slowing of heart rate also has the potential to lead to a reduction in blood pressure.
This is because a slower heart rate means that there are fewer contractions per minute, which can result in a lower overall cardiac output. Cardiac output is the amount of blood that the heart pumps out per minute, and if it is reduced, then blood pressure may also decrease.
The correct answer is option c.
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humans tend to be monogamous, so maybe a baculum is not as useful as in other species. why else may humans not have evolved to have a baculum?
While monogamy may be a contributing factor, the absence of a baculum in humans is likely a complex result of a combination of factors, and may simply be a byproduct of evolutionary history.
The lack of a baculum in humans is likely due to a combination of factors. While monogamy may play a role in reducing the need for a baculum, it is important to note that not all monogamous species lack a baculum. Additionally, humans have evolved a number of other adaptations for reproductive success, such as increased brain size for social and cognitive abilities, and a prolonged period of infant dependency.
It is also possible that the absence of a baculum in humans is simply a result of genetic drift or historical accident. Evolution does not always result in the most efficient or optimal solution, but rather what is sufficient for survival and reproduction in a given environment. In the case of humans, the absence of a baculum may have simply not posed a significant disadvantage to reproductive success, and thus was not selected for or against.
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Interview Dr. Wight You notice that the samples you collected from the labs are now labeled 1, 2, and 3. You ask your lab assistants which samples correspond to which labs, but someone failed to label the tubes when running the assays. This is a disaster! Now, in addition to determining which sample (if any) matches the murder weapon, you will have to testify in court as a biochemist to convince a jury that the guilty sample (1, 2, or 3) belongs to the guilty person (Dr. Green, Wight, or Gray) based on what you know about enzyme kinetics. Are you up to the challenge? Who killed Dr. Bleu? Results: Dr. Wight works on an inhibitor of XYZase that acts by binding to a lysine residue in the enzyme's active site, forming a Schiff base. This lysine is critical to function, normally acting as an acid in the enzyme mechanism. Stability studies have confirmed that under physiological conditions, the inhibitor-Schiff base linkage formed in the enzyme active site is extremely stable, with a half-life of more than 24 hours. The good news is that you may now go back to Hinesbiopharma and interview the three scientists about the molecular mechanism of the inhibitor that each has developed. How would Km be affected by Dr. Wight's inhibitor? increase stay the same decrease Interview Dr. Wight Results: Dr. Wight works on an inhibitor of XYZase that acts by binding to a lysine residue in the enzyme's active site, forming a Schiff base. This lysine is critical to function, normally acting as an acid in the enzyme mechanism. Stability studies have confirmed that under physiological conditions, the inhibitor-Schiff base linkage formed in the enzyme active site is extremely stable, with a half-life of more than 24 hours. How would Dr. Wight's inhibitor affect the apparent Vmax of the reaction catalyzed by XYZase? increase stay the same decrease
The inhibitor developed by Dr. Wight would decrease the apparent Vmax of the reaction catalyzed by XYZase. This is because the inhibitor binds to the enzyme's active site and thus prevents the enzyme from reaching its maximum catalytic potential.
In other words, the enzyme is less able to catalyze the reaction, thus decreasing the apparent Vmax.
Dr. Wight's inhibitor would decrease the apparent Vmax of the reaction catalyzed by XYZase. This is because the inhibitor binds to the lysine residue in the enzyme's active site, forming a Schiff base. This prevents the enzyme from functioning normally and reduces its ability to catalyze the reaction. As a result, the apparent Vmax of the reaction will decrease.
Additionally, the inhibitor-Schiff base linkage is extremely stable, with a half-life of more than 24 hours, which means that the inhibition will be long-lasting and the apparent Vmax will remain decreased for an extended period of time.
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15. These photosynthetic organisms can live in extreme environments, sometimes harnessing energy from chemicals, and are among some of the oldest organisms on Earth.
Οalgae
O protists
O cyanobacteria
O diatoms
Answer:
cyanobacteria
Explanation:
the answer of this question the 3rd one, because if you were to think and look up the oldest Bactria it would be that answer.
If it is determined you have a competitive inhibitor, how will the curve for the tyrosinase with inhibitor look compared tyrosinase alone (both in the presence of substrate)? The y-intercept with inhibitor will have a lower value than that without inhibitor The curves will both have the same x-intercept The curves with the inhibitor will be less steep (have a less negative value) than the curve without the inhibitor The curves will both have the same y-intercept
The y-intercept with inhibitor will have a lower value than that without inhibitor, The curves will both have the same x-intercept, and The curves with the inhibitor will be less steep (have a less negative value) than the curve without the inhibitor. The curves will not have the same y-intercept.
If it is determined that you have a competitive inhibitor for tyrosinase, the curve for tyrosinase with inhibitor will look similar to the curve for tyrosinase alone, but with a few differences. Both curves will have the same x-intercept, as they both represent the point at which the enzyme is saturated with substrate.
However, the y-intercept with the inhibitor will have a lower value than that without the inhibitor. This is because the inhibitor is competing with the substrate for binding to the enzyme, which reduces the amount of product that is formed. As a result, the curves with the inhibitor will be less steep (have a less negative value) than the curve without the inhibitor, indicating that less product is being produced at each concentration of substrate.
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easy biology question below first correct answer gets brainliest
Answer
B
Explanation:
if,k
Answer:
the answer is ....C
.........
Name the following.
Numerous identical molecules were produced in a laboratory by copying individual DNA molecule.
Answer:
I believe this happens when you clone DNA in a lab.
Explanation:
Hope this helps!