Answers
The side chains of amino acids may be polar or non-polar. So the correct option is D.
What are amino acids?
Any of a class of organic compounds known as amino acids that are composed of an organic R group (or side chain) that is specific to each amino acid, a basic amino group (NH2), an acidic carboxyl group (COOH), and an organic carboxyl group.
Alpha-amino [alpha-amino] carboxylic acid is referred to as an amino acid informally. The core carbon (C) atom of every molecule is known as the alpha-carbon, and it serves as the site for the attachment of both an amino and a carboxyl group.
A hydrogen (H) atom and the R group typically fulfill the remaining two bonds of the alpha-carbon atom. The distinctive chemical structure of the R group distinguishes the amino acids from one another.
Except for glycine, all amino acids are chiral compounds. In other words, they can be found in two optically active asymmetric forms that are mirror reflections of one another.
Therefore the correct option is D.
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Related Questions
For a type of pea plant, round seeds (R) are dominant to wrinkled seeds (r). A pea plant
with the genotype Rr is crossed with another pea plant with the genotype Rr. What
percent of the offspring are expected to have wrinkled seeds?
O 100%
O 75%
O 50%
O 25%
Answers
When you make a punnet square 1/4 boxes has rr which is the only one that is a wrinkled seed
In camellia plants, flower color is controlled by a single gene with codominant alleles. A camellia plants with red flowers (R) is crossed with a camellia plant with white flowers (WW). What are the expected phenotypes of the offspring of this cross?
O A. All will have both red and white flowers.
• B. All will have red flowers.
O c. Half will have red flowers and half will have white flowers.
• D. All will have pink flowers.
Answers
Half will have red flowers and half will have white flowers (option c).
In camellia plants, flower color is controlled by a single gene with codominant alleles. In this case, one parent plant has red flowers (R), while the other parent plant has white flowers (WW).
When two organisms with codominant alleles are crossed, both alleles are expressed equally in the offspring. Therefore, in this cross, the offspring will inherit one allele for red flowers (R) from the red-flowered parent and one allele for white flowers (W) from the white-flowered parent.
The possible combinations of alleles that the offspring can inherit are RW and RW.
When the alleles RW and RW combine, the resulting genotypes are RR (red-flowered) and RW (pink-flowered). However, since the allele for white flowers (W) is recessive to the allele for red flowers (R), the plants with the RW genotype will exhibit the dominant red flower phenotype.
Therefore, half of the offspring will have the RR genotype and display red flowers, while the other half will have the RW genotype and also display red flowers. None of the offspring will have the WW genotype, so there won't be any white flowers.
Hence, the expected phenotypes of the offspring of this cross are that half will have red flowers and half will have white flowers. Thus, the correct option is c.
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What advantage does a cell have by being long and thin instead of round or square?
A. It can decrease its surface area, which can allow it to be smaller.
B. It can increase its surface area, which can allow it to be smaller.
C. It can increase its surface area, which can allow it to be bigger.
D. It can decrease its surface area, which can allow it to be bigger.
Answers
Answer:
B. It can increase its surface area, which can allow it to be smaller.
Explanation
The surface area refers to the total area on the surface of a substance. The surface area of a cell increases as the cell increases in volume content.
A cell that is long and thin instead of round or square will have an increased surface area i.e. reduced volume, meaning that nutrients will move into that cell more readily. However, the surface area increases with a decrease in size, which means that since the shape (long and thin) allows it to have an increased surface area, it will get smaller.
Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
After ingestion and digestion by the lactase enzyme, the monosaccharides glucose and galactose are taken up by cells of the small intestine.
Order these molecules from lowest to highest ability to pass through a phospholipid bilayer:
Group of answer choices
glucose, water, molecular oxygen, a sodium ion
a sodium ion, molecular oxygen, glucose, water
molecular oxygen, water, a sodium ion, glucose
glucose, a sodium ion, molecular oxygen, water
a sodium ion, glucose, water, molecular oxygen
Answers
The order of the molecules from lowest to highest ability to pass through a phospholipid bilayer is: molecular oxygen, water, a sodium ion, glucose.
The ability of molecules to pass through a phospholipid bilayer depends on their size, polarity, and charge. Here's the order from lowest to highest ability to pass through a phospholipid bilayer:
1. Molecular oxygen (O2) - small and nonpolar, can easily pass through.
2. Water (H2O) - small and polar, can pass through but slower than molecular oxygen.
3. A sodium ion (Na+) - small but charged, has difficulty passing through without help from channels or transporters.
4. Glucose - large and polar, has the lowest ability to pass through without help from specific transport proteins.
So, the correct order is: molecular oxygen, water, a sodium ion, glucose.
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ASAP NEED HELP WITH 28 and 29 PLEASEE
Answers
Answer:
you have to add the picture of the questions
what are the questions?
i need help with this plz.
Answers
Answer:
a) an oak tree
Explanation:
In the forest's ecosystem, the trees, shrubs and moss are all producers. They turn water and sunlight into the energy they need to live and grow, through a process called photosynthesis.
Two locations have different water vapor Contant in the atmosphere which of this is likely to be recorded
Answers
Answer:
The water vapor content in the atmosphere is typically recorded using a measurement called relative humidity, which represents the amount of water vapor present in the air relative to the maximum amount the air could hold at a given temperature. Therefore, if two locations have different water vapor content in the atmosphere, it is likely that they would have different relative humidity readings.
For example, if one location has a higher water vapor content in the air, it would have a higher relative humidity measurement than a location with a lower water vapor content. Conversely, if one location has a lower water vapor content in the air, it would have a lower relative humidity measurement than a location with a higher water vapor content.
It is important to note that other factors can also influence relative humidity measurements, such as temperature and atmospheric pressure, so a direct comparison of relative humidity readings between two locations should take these factors into account.
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Explain how diffusion restored homeostasis during the dialysis treatment.
Answers
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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Gradual changes of species structure inhabiting a geographical area
A)Secondary succession
B)Primary succession
C)both aquatic and primary succession
D)Both secondary and primary succession
Answers
Primary succession occurs in an area where no soil exists, such as on a newly formed volcanic island, while secondary succession occurs in an area where soil is present but has been disturbed, such as after a wildfire or deforestation. In both cases, gradual changes in species structure occur over time.
Which model supports the idea that, as matter flows between systems,
elements are recombined in different ways?
Answers
As matter and energy flow through different organizational levels of living systems, chemical elements are recombined in different ways to form different products.
What is energy flow?Energy flow is the amount of energy that moves along the food chain. This flow of energy is also called heat flow.An example of energy flow in an ecosystem begins with autotrophs drawing energy from the sun. Herbivores then eat autotrophs and convert plant energy into usable energy. Carnivores then eat herbivores, and eventually other carnivores prey on them. Bioavailable radiant or solar energy and solid state energy are two types of energy streams. The energy is delivered to producer consumers, such as animals. Energy can come directly or indirectly from producers. Ultimately, decomposers break down dead organisms, including plants and animals, to contribute nutrients.To learn more about energy flow from the given link :
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How do paper airplanes fly?
Answers
Answer:
Drag and gravity.
Explanation:
When planes push the air aside using the area they cover, they are said to have a lot of drag or resistance when they move through the air. Paper airplanes, due to their lightweight and thin build, have very little drag, allowing them to weave through the air without too much resistance. Gravity also bears down on the paper, albeit with minimal effect due to its light constitution.
Answer:
The way paper airplanes can fly is that it has to have aerodynamics, drag and gravity, and thrust and lift. Drag and gravity happens when the plane pushes the air aside using the area they cover. Thrust and lift helps the paper planes have extended flights.
Explanation:
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Why is it important for scientists to use scientific names and not common names?
----------------------------------------------------------------------------------------------------------
A. Common names can be confusing and don't translate the same in every language.
B. Common names are more accurate than scientific names.
C. Scientific names can be confusing and don't translate the same in every language.
D. There are several scientific names for each organism.
Answers
Answer: The answer is c
Explanation:
Answer: A
Explanation: The same common names could be used for any animal and it could cause alot of confusion. Names in latin are easier bc they are more specific
What are two factors that determine an object's thermal energy?
Answers
Answer: MASS AND TEMPATURE
An object's thermal energy is dependent upon its temperature and mass. The higher the temperature of a given quantity of a substance, more is its thermal energy. Similarly, for the same temperature, higher mass of a substance will contain more thermal energy.
Explanation:
Two factors that determine an object's thermal energy are Mass and temperature.
Mass:
The mass of an object influences its thermal energy. The greater the mass of an object, the more thermal energy it possesses. This is because a larger mass contains a larger number of particles that are in motion, contributing to the overall thermal energy of the object.Temperature:
The temperature of an object is a measure of the average kinetic energy of its particles. The higher the temperature, the greater the average kinetic energy and thus the greater the thermal energy of the object. Temperature determines the intensity of the thermal energy and how vigorously the particles are moving.Thus, mass and temperature, play significant roles in determining the thermal energy of an object.
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Which organism is likely to carry out the process shown in the diagram?
CO, + H,O
Heat
www
Chloroplast
Mitochondrion
MASS
Respiration
OA. Barn owl
OB. Mushroom
C. Alligator
-0₂
Sugar
ATP
Answers
Answer:
C
Explanation:
took the test
Confused:( I’m currently a high school student but I’m taking this college anthro 1 online class since my counselor said I need it for my transcript but I’m so lost in this last question :[
Answers
Answer: 5a. 0% 5b. 50% 5c. 50%
Explanation: It is asking for you to cross an individual who is heterozygous for this trait, Ee, with someone who has attached earlobes. Because this is the recessive trait they must be ee. With that in mind your Punnett Square should be an Ee x ee. So 0% of the offspring will be homozygous dominant, EE. 50% will be homozygous recessive, ee. And 50% will be heterozygous, Ee.
Hope this helps.
which is true about a buffer?
a. it increases the amount of H+ in an acidic solution.
b. it reduces the amount of H+ in an acidic solution.
c. it reduces the amount of H+ in an alkaline solution.
Answers
The statement that is true about a buffer is that it reduces the amount of H+ in an acidic solution (option B).
What is a buffer solution?Buffer is a solution that is used to stabilize the pH (excess acidity or alkalinity) of a liquid.
Buffers operate by neutralizing any added acid (H+ ions) or base (OH- ions) to maintain the moderate pH, making them a weaker acid or base.
Therefore, it can be said that the statement that is true about a buffer is that it reduces the amount of H+ in an acidic solution.
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Which step is part of the engineering design process but is not part of a
scientific investigation?
Answers
The step which is a part of the engineering design process but is not part of a scientific investigation is to imagine
What is scientific investigation?Scientific investigation simply refers to those steps and procedures used to in unraveling the science behind a particular naturally observed phenomena.
So therefore, the step which is a part of the engineering design process but is not part of a scientific investigation is to imagine
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I need help on a biology assignment . Question 24
Answers
Question 24.
Answer:
The sequence of amino acids in a protein determines its function. If the sequence between two organisms is similar, chances are the functions of their proteins will be similar, meaning they will have similar functions.
The unique amino acid sequence of a protein is reflected in its unique folded structure. This structure, in turn, determines the protein’s function.
Each protein is a different amino acid sequence, which is automatically folded into a 3D structure, then fixed by subsequently formed hydrogen bonds.
2) A DNA sample contained 38% cytosine? What percent of the sample would be
guanine, adenine, and thymine?
Answers
The punnet square shows the results when two parent cows are crossed. R represents red hair and represents white hair. Which best describes this inheritance pattern?
Answers
Answer:codominance
Explanation: Both genes will be expressed equally without overshadowing the other
Answer:
A
Explanation:
Incomplete dominance because the intermediate from of the trait is chosen
HELP PLEASE! Which of the following courses should a student take in order to become a hydrologist? Choose the two best answers.
statistics
life science
coding
physical science
philosophy
Answers
Answer:
The two best courses for a student aspiring to become a hydrologist would be:
Physical Science: This course would provide a solid foundation in understanding the principles of physics and chemistry, which are essential for studying the movement and behavior of water in hydrology.
Statistics: Statistics is crucial for analyzing and interpreting data in hydrology research. Hydrologists often deal with large datasets and need statistical skills to make accurate conclusions and predictions.
While the other courses may have some relevance or value in certain aspects of hydrology, they are not as directly applicable or fundamental as physical science and statistics.
Explanation:
Answer: Statistics and Physical Science.
Explanation:
Statistics: Statistics is a branch of mathematics that deals with collecting, analyzing, and interpreting data. Statistics is essential for hydrologists because they use data to monitor, model, and forecast water resources and environmental issues. For example, hydrologists may use statistics to estimate water availability, assess water quality, evaluate water management strategies, and identify trends and patterns in hydrological phenomena.Physical science: Physical science is a broad term that encompasses the natural sciences that study the physical aspects of nature, such as physics, chemistry, geology, meteorology, and oceanography. Physical science is important for hydrologists because they need to understand the physical processes that govern the movement, distribution, and properties of water in various forms and environments. For example, hydrologists may use physical science to study the hydrologic cycle, the interactions between water and earth materials, the effects of climate and weather on water resources, and the principles of fluid mechanics and hydrodynamics.Hope this helps, and have a great day! =)
What should you do if you break glass in the classroom?
Nothing
Hide it
Tell the teacher immediately
Clean it up and put the glass in the broken glass box.
Is:Tell the teacher immediately
Answers
Answer:
tell the teacher immediately
WILL GIVE BRAINIEST IF RIGHT!!!!
What two pieces of evidence do we have that helps develop the model of earths interior
Answers
Answer:
reflections and refractions of seismic wave
Explanation:
The reflections and refractions of seismic waves allow the layers and boundaries within the earth to be located and studied. By tracking seismic waves, scientists have learned what makes up the planet's interior
Which correctly lists the three weather factors that are indicators of climate change?
sunsets, wind patterns, clouds
ocean currents, ice cores, temperature
temperature, wind patterns, ice cores
wind patterns, temperature, ocean currents
Answers
Answer: D) wind patterns, temperature, ocean currents
Explanation: Ed2020
The list of weather factors that are indicators of climate change are wind patterns, temperature, ocean currents.
What is climate?Climate is the atmospheric weather conditions that exist in a place at a particular time which affect the existence of living things.
Therefore, The list of weather factors that are indicators of climate change are wind patterns, temperature, ocean currents
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Phosphatidate (phosphatidic acid) is a precursor in the synthesis of some lipids. Phosphatidate (phosphatidic acid) is a branched molecule. The core of the molecule is a three carbon chain. Carbon one is single bonded to two hydrogens, and a side chain. The side chain is oxygen single bonded to carbon. The carbon is double bonded to oxygen and an R 1 side chain. Carbon two of the core chain is single bonded 1 hydrogen and to oxygen which is single bonded to carbon. The carbon is double bonded to oxygen and single bonded to an R 2 side chain. Carbon three is single bonded to two hydrogens and a phosphate group. P O 4 2 minus. Phosphatidate (phosphatidic acid) Identify the lipids that have phosphatidate as a precursor.
Answers
Answer:
glycerolphospholipids, triacylglycerol, and cardoilpin.
Explanation:
PS: Kindly check the attached picture for the structure of Phosphatidate (phosphatidic acid).
The chemical compound known as Phosphatidate or the phosphatidic acid belongs to a group known as phospholipids. Phosphatidate or the phosphatidic acid can be prepared by using the chemical compound known as diacylglycerol kinase to phosphorylate diacylglycerol. Also, Phosphatidate (phosphatidic acid) can be prepared by making use of lysoPA-acyltransferase to acrylate lysophosphatidic acid[a phoshopipid derivative].
The lipids that have Phosphatidate (phosphatidic acid) as precursor are glycerolphospholipids, triacylglycerol, cardoilpin, phosphatidylinositol
The number of AIDS cases in the United States has fallen dramatically over the last decade.
O True
O False
Answers
By which process is energy from the sun converted to energy that is usable by cells? A photosynthesis B respiration C translation D digestion
Answers
Answer:
A. Photosynthesis... Plant cells uses the suns energy to start a chemical reaction to make food. it turns glucose into food.
Explanation:
Select a potted plant from the garden and keep it in a room for five days as shown in the diagram. After five days, you can see that most of the leaves of the plant change yellow. What could be a systematic method to ask right questions? Make a hypothesis or educated guess, conducting scientific experiment and activities about the existing facts to figure out a conclusion in accordance with the scientific learning process.
Answers
Answer:
Explanation:
To systematically investigate the yellowing of the plant's leaves, you can follow these steps:
1- Observation: Observe and note that after five days in the room, most of the plant's leaves have turned yellow.
2- Question: Ask yourself, "Why did the leaves of the potted plant turn yellow after being kept in the room for five days?"
3- Hypothesis: Make an educated guess about the possible cause of the yellowing. For example, you could hypothesize that the lack of sunlight in the room caused the leaves to turn yellow.
4- Experiment: Design an experiment to test your hypothesis. Place another potted plant in a different room with similar conditions but with sufficient sunlight.
5- Data collection and analysis: Record and compare the condition and color of the leaves in both plants after five days. If the plant with sunlight has green leaves while the one in the room still has yellow leaves, it supports your hypothesis.
6- Conclusion: Based on your observations and the results of the experiment, conclude that the lack of sunlight may be the cause of the yellowing of the plant's leaves.
By following these steps, you can systematically ask the right questions, form a hypothesis, conduct an experiment, and reach a conclusion using the scientific learning process.
Hope it helps!!! :)
A systematic method to ask the right questions, make educated guesses, conduct scientific experiments, and arrive at a conclusion is to follow the scientific method as follows:
Make observationsAsk questionsFormulate a hypothesisDesign and conduct experimentsCollect and analyze dataDraw a conclusionA hypothesis could be; The yellowing of the plant's leaves is a result of reduced exposure to sunlight.
Why do the leaves of a potted plant kept away from sunlight turn yellow?The yellowing of leaves in a potted plant kept away from sunlight is primarily due to a process called chlorosis which is the loss or reduction of chlorophyll in plant tissues.
When a potted plant is kept away from sunlight or receives insufficient light, the plant is unable to carry out photosynthesis. Consequently, the chlorophyll content in the leaves decreases, and they start to lose their green color.
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describe clinical features of meningitis
Answers
Fever, neck pain/stiffness, and photophobia are common symptoms. Headache, dizziness, disorientation, and delirium are meningitis that can manifest differently depending on the host's age.
Are stiff neck and headache common meningitis symptoms?The infection and inflammation of the fluid and membranes around the brain and spinal cord are known as meningitis. These membranes are known as meninges. Meningitis inflammation often causes symptoms such as headache, fever, and stiff neck.
Is a test for meningitis available?Hospital tests, A physical examination to seek for signs of meningitis. A blood test to detect germs or viruses. A lumbar puncture is a procedure in which a sample of fluid from the spine is removed and tested for germs or viruses. a CT scan to look for any brain issues, such as oedema.
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