Which functional group is present in amine compounds?
A. COOH group
B. OH group
C. NH2 group
Final answer:
The functional group present in amine compounds is the NH2 group or amine group, which is the characterizing feature of an amine. The correct answer from the options provided is C.
Explanation:
The functional group present in amine compounds is the NH2 group. An amine is derived from ammonia, where one or more hydrogen atoms are replaced by hydrocarbon groups. In the context of amino acids, each molecule contains both an amine group (-NH2) and a carboxyl group (-COOH). While the amine group is a basic functional group with the formula -NH2, the carboxyl group is acidic and characterized by a carbon-oxygen bond and an OH group attached to the same carbon atom. In physiological conditions, the amine exists as an ammonium ion after gaining a proton, forming -NH3+ and the carboxyl group loses its proton to become a carboxylate ion -COO-.
This is a True or False series of bio questions.
In the scientific method, the hypothesis phase is where one or more falsifiable explanations for the observation are developed. t/f
The positively charged DNA molecules flow to the negatively charged poles in the electrophoresis chamber. t/f
A map of restriction enzymes can be generated by cutting DNA with different combinations of restriction enzymes. t/f
In the scientific method, the observation phase is defining the problem you wish to explain. t/f
The purpose of ethidium bromide is to bind to the DNA double helix and to glow when exposed to ultraviolet light to tell the scientist where the DNA fragments end up. t/f
A hole is made in an opaque sheet of paper. A monochromatic variety of light is shot at the paper from one side. On the opposite side of the paper, the effects of diffraction will be greatest when the light has a _______ and the hole is _______. A. long wavelength; small B. high frequency; small C. low frequency; large D. short wavelength; large
Answer:
THANK ME its B on usa testprep
Explanation:
A. long wavelength; small
Diffraction is the greatest whenever the gap where the wave is passing through is smaller. This gap property will make the wave to "curve" reaching a more wider area, the smallest the gap is, more the wave will curve, spreading more widely. The light would propagate more rather then being concentrated on one focus. The wavelength is also something that affects diffraction. Whenever the wavelength is longer, the wave will have more time to spread sideways after diffraction.
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____________________ is a form of conservation biology that focuses on habitats that are located where people live, work, or play.
Where is the energy from the light reactions used?
What adaptions give flowering plants a reproductive advantage over gymnosperms?
The diagram shows one process during sexual reproduction. After fertilization, the zygote contains 28 chromosomes. What is the number of chromosomes (n) present in the gametes?
A) 7
B) 14
C) 28
D) 56
Answer:
The correct answer would be B) 14.
In sexual reproduction, gametes are haploid cells formed after meiotic division of germ cells.
Meiosis is a cell division which results in the formation of four daughter cells from a single parent or germ cell. Each daughter cell contains half the number of chromosome present in the parent cell.
The haploid gametes fuse to form diploid zygote that is, the fertilization restored the diploid chromosomal number.
Now, the number of chromosomes in the zygote is 28. Thus, the number of chromosomes in gametes must be half of 28 that is, 14.
Describe glycolysis in terms of energy input, energy output, and net gain of atp.
Glycolysis is a cellular process that converts glucose into pyruvate, resulting in a net gain of 2 ATP and the production of 2 NADH molecules. The process starts with an energy investment of 2 ATP and concludes with the generation of 4 ATP, hence the net gain. This ancient and universal pathway does not depend on oxygen, allowing it to function under various conditions.
Explanation:Glycolysis Overview
Glycolysis is a series of biochemical reactions that breaks down glucose into pyruvate, producing ATP (adenosine triphosphate) and NADH (nicotinamide adenine dinucleotide) in the process. It begins with an energy input phase where 2 ATP molecules are used to convert glucose into a form that can be split into two three-carbon molecules. This is followed by the energy output phase, which results in the production of 4 ATP and 2 NADH molecules. The net gain of ATP during glycolysis is 2, as the initial investment of 2 ATP results in a total of 4 ATP, thus making a net gain of 2 ATP molecules.
Why is Glycolysis Important?
Glycolysis is a universal and ancient metabolic pathway, indicating that it was present in the earliest forms of life and is conserved across all domains of life today. This pathway is not oxygen dependent, which means it can occur both in the presence and absence of oxygen, making it adaptable to a variety of cellular conditions.
There is only room for one more person in the backseat of the car _____ my aunty is too fat.
Which state of matter does this model represent? Image of particles spread out, filling a container with space between them Solid Liquid Gas Plasma
Matter can be made to change between each of the four fundamental states by the addition or removal of energy
The correct option for the state of matter represented by the model; Gas
Question: Please find attached the model to be included as part of the question
The different states of matter are; Solid, liquid, gas, and plasma
Solids state: When matter is in the soli state the particles are packed closely together, forming a rigid structure, in which the molecules posses the lowest amount of energy compared to the other states of matter
Liquid state: Matter in the liquid state is in the intermediate state between the solid and gaseous states. Matter in the liquid state are free to move from place to place within the liquid , and they take the shape of the container in which it is placed
Gaseous state: In the gaseous state, the particles of matter has the most energy compared to the other three states. and the particles can move freely within the containing vessel to fill the vessel in which the gas is placed
Therefore, the model with the image of particles that spread out, filling the container with space between them represents matter in the gaseous state, and the correct option is gas
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_________ is the least developed of a newborn baby's senses.
The least developed sense in a newborn baby is vision.
Explanation:The least developed sense in a newborn baby is vision. Newborns' vision is not yet fully developed as both the retinas and the parts of the brain involved in vision are still immature. Most newborns can only focus on objects that are directly in front of their face and about 46 cm away.
Calcium storage, lipid synthesis, carbohydrate metabolism, and detoxification of harmful substances, all occur in the ______ .
The smooth endoplasmic reticulum (SER) is the cellular organelle responsible for calcium storage, lipid and steroid hormone synthesis, carbohydrate metabolism, and the detoxification of harmful substances.
Explanation:Calcium storage, lipid synthesis, carbohydrate metabolism, and detoxification of harmful substances all occur in the smooth endoplasmic reticulum (SER). The SER is a critical organelle in cells, especially prominent in those that synthesize large amounts of lipids and steroid hormones, such as the cells of the ovaries and testes, the liver, and certain cells within the nervous system.
The SER serves several vital functions, including the synthesis of carbohydrates, lipids, and steroid hormones; detoxifying chemicals like pesticides, preservatives, medications, and environmental pollutants; and storing calcium ions that are necessary for various cellular processes such as neurotransmitter release in nerve cells.
Two rabbits, one with a brown coat (Cc) and the other with a white coat (cc), are crossed. What are the likely results of this cross? All of the offspring will have white coats, and none will have brown coats. One–half of the offspring will have brown coats, and one–half will have white coats. All of the offspring will have brown coats, and none will have white coats. NextReset
How is the growth of land plants proof that there is carbon in the atmosphere? How does carbon exist in the atmosphere, biosphere, and geosphere all at the same time?
Answer: 1 The growth of plants shows that there is a pressence of carbon in the atmosphere. The plants take carbon dioxide and sunlight from the atmosphere for the process of photosynthesis, this provides food to the plants. This food helps in growth and development of the plants and this proves that .
Answer: 2 The carbon exists mainly in the form of carbon dioxide in atmosphere, organic matter in the biosphere and coal, graphite, diamond in geosphere.
A 22-year-old female has a low level of tsh. what condition does the nurse expect the patient is experiencing?
Discuss the relationship between autotrophs and heterotrophs. Do heterotrophs depend on autotrophs for the survival?
The first event to occur when an adequate stimulus is applied to a neuron is
When blood returns from the pulmonary circuit, it first enters the ____ chamber of the heart?
Oxygen-rich blood flows from the lungs into the left atrium through the pulmonary veins.
What is the structure of the heart?The human heart is a muscular, four-chambered organ that is about the size and form of a man's closed fist, with two-thirds of the mass located to the left of the midline.
The parietal walls of a serous membrane border the pericardial sac, which houses the heart. The epicardium is made up of the serous membrane's visceral layer.
The heart wall is made up of three layers of tissue. The epicardium, myocardium, and endocardium are the heart wall's three outer, middle, and interior layers, respectively.
Blood from the veins enters the two atria, which have thin walls. The heart's two ventricles, have strong walls and powerfully pump the blood out of the organ. The quantity of myocardium in each heart chamber varies, reflecting the force that each chamber must provide, and this results in changes in the thickness of the heart chamber walls.
Systemic veins deliver deoxygenated blood to the right atrium, whereas pulmonary veins deliver oxygenated blood to the left atrium.
Therefore, oxygen-rich blood flows from the lungs into the left atrium through the pulmonary veins.
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Definition: this is the scale used to describe how acidic or basic a solution is. this affects the enzymes within living systems.
Answer:
PH
Explanation:
science
The client with a peptic ulcer is prescribed antibiotics and bismuth salts. the nurse explains that this combination of medications will:
In a 10 m2 ecosystem, there are 20 raccoons. The population density of raccoons is _____. 2 per m2 4 per m2 10 per m2 20 per m2
Answer:
The correct answer is option A, [tex]2\frac{Racoons}{m^2}\\[/tex]
Explanation:
The Population density of any species in an ecosystem is equal to the number of that species living in one unit of area.
Therefore, population density can be represented as
[tex]\frac{Total population }{Total area of habitat} \\[/tex]
Substituting the given values in above equation, we get -
[tex]= \frac{20}{10} \frac{Racoons}{m^2}\\= 2 \frac{Racoons}{m^2}\\[/tex]
Which hormone is produced in fat tissue that helps regulate body fat by signaling the reduction of food intake in the brain?
When blood volume increases to the point that cardiac cells are stretched, the heart releases what natriuretic hormone?
A human with the karyotype 49, xxxyy forms _______ barr bodies.
The insula is considered to be part of the ________. the insula is considered to be part of the ________. hypothalamus cerebrum cerebellum thalamus
The correction option is d) cerebrum
What is insula?The insula, insular cortex or the insular lobe is a part of the cerebral cortex located in both hemispheres.
Anatomically insula is a thin ribbon of gray matter tissue folded deep within the lateral sulcus that lies just deep to the lateral brain surface, separating the temporal lobe from the inferior parietal cortex.
The insula is involved in gustatory and sensorimotor processing, risk-reward behavior, autonomics, pain pathways, and auditory and vestibular functioning.
The insula serves connection with the brain structures including Neocortex, Basal ganglia, Thalamus, Limbic system and the olfactory cortex.
Thus, it is clear the insula however, serves connection with different brain structures but it is originally considered to be part of the cerebrum.
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A student does an experiment for a science fair to study whether temperature affects the timing of a cricket’s chirps. The student keeps a cricket in an enclosed box that is heated to different temperatures each day for twelve days. The student records the cricket’s chirps by using a sound-activated microphone so the timing of the chirps can be measured. Which is the dependent variable in this experiment?
size of the box
temperature of the box
timing of the cricket’s chirps
volume of the cricket’s chirps
Answer: timing of the cricket's chirps.
Explanation:
In an experimental setup, an independent variable is the variable which can be changed or manipulated in an experiment, the affect of which can be observed on the dependent variable.
Dependent variable is the variable the changes in which are the outcomes of the experiment.
According to the given situation, timing of the cricket's chirps is the example of dependent variable which changes due to the affect of temperature.
Answer:
C
Explanation:
edge 2021
Which of the following do meteorologists not typically use weather balloons to record? A atmospheric pressure b cloud types c humidity d temperature
Your answer will be B.) cloud Types
100% correct
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Answer:
cloud types
Explanation:
why you need to know cloud types
What does the mass of an object depend on? Force of gravity Temperature of the object Time taken for an event to occur Amount of matter that makes up the object
The amount of matter that makes up an object.
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How can elevated tsh be involved in hypothyroidism?