Answer:
Lipids are arranged in the form of a bilayer, while proteins are arranged in an irregular and asymmetric way between them. These components confer a certain degree of mobility to the membrane, giving rise to the pattern known as fluid mosaic. Membrane proteins, as will be seen later, can be peripheral or partially or totally integrated into the membrane, being generally globular or fibrous. Its activity is essential for the maintenance of transmembrane gradients and the study of its structure is a priority.
Explanation:
The lipid bilayer is a fluid and dynamic structure. This dynamism of the bilayer is known as the fluid mosaic model, in which all the molecules that are part of the bilayer are actively involved, whether they are phospholipids, glycolipids, sterols and proteins, among others. Membrane proteins are located according to the structure of their amino acids, specifically their hydrophilic or hydrophobic properties. They are the main communication tools between the inside and outside of the cell, thanks to them the exchange of molecules such as nutrients or waste products, as well as receiving external signals. Peripheral proteins are attached to the membrane by van der Waals forces, hydrogen or ionic bonds. Generally, they have a net positive charge, the presence of negatively charged lipids in the membrane being necessary to give rise to an electrostatic-type anchoring. Integral (intrinsic) proteins are bound to the lipid bilayer in a very tight way, through covalent bonds and are subdivided into three categories: One- or multi-step transmembrane protein (in alpha helix). They are glycosylated at the extracellular end. They are generally receivers. Protein bound to one or more fatty acids (in the inner sheet). An example of this category is protein G. Protein bound to a lipid of the bilayer (phosphatidyl-inositol) by means of an oligosaccharide (in the outer sheet). As an example we have the neuronal adhesion molecules.
Answer the lab question, “What is the effect of the inheritance of one trait on the inheritance of a second trait?” with a hypothesis. Remember that you can either assume that the two genes are independent or that they are linked. What results would you expect in either case?
Answer:
please give me branlist and follow
Explanation:
One hypothesis would be "The inheritance of one trait does not affect the inheritance of another trait". It can be explained with the help of law of independent assortment. It states that the genes are randomly distributed in the gametes, that is, independent of each other.
what body systems help when taking a test
In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the allele Xt. A tortoise coat is caused by the heterozygous condition. What is the correct way to represent the genotype of a cat with a tortoise coat
Answer:
The correct answer is - XTXt
Explanation:
In the question, it is given that in cats the coat color is an X-linked trait that shows incomplete dominance if present in heterozygous condition.
The allele for yellow allele = XT (it is dominant allele)
The allele for black coat = Xt (it is recessive allele)
The amle cat can not show the heterozygous condition or tortoise coat as they have only one X chromosome so they will be either yellow coat cats or black coat cats.
In female cats the tortoise coat will show when the both allele present together: XTXt due to their incomplete dominance.
explain how blood flows through the heart
Answer:The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Explanation:
Why is it important that gametes be haploid?
I GOT YOU SO EASY
Answer:because when the sperm and the egg fuse together the cell will have 46 chromosomes.
Answer:
It is important that chromosomes are haploids because when the sperm and the egg fuse together the cell will have 46 chromosomes. polar bodies are haploid cells produced during meiosis which are smaller in size compared to the gamete and will disintegrate
Explanation:
Hope this helped Mark BRAINLIEST!!!
HELP PLEASE
What behavior allows newborn animals to recognize and follow the first moving object they see?
Question 4 options:
conditioning
courting
mimicking
imprinting
Describe how brine pools function
Explanation:
Brine pools are sometimes called sea floor "lakes" because the dense brine does not easily mix with overlying seawater. The high salinity raises the density of the brine, which creates a distinct surface and shoreline for the pool. When submarines dive into brine pools, they float on the brine surface due to the high density
How are mitosis and meiosis the same and different?
5) It is said that the hottest layer of the earth
is the core (outer core and the inner core)
and that is where metal is found. Why
can't metal melt in the core?
Answer:
please give me brainlist and follow
Explanation:
The churning metal of the outer core creates and sustains Earth's magnetic field. The hottest part of the core is actually the Bullen discontinuity, where temperatures reach 6,000° Celsius (10,800° Fahrenheit)—as hot as the surface of the sun. The inner core is a hot, dense ball of (mostly) iron.
Help pls ;<; /A city lies near a forest. The city leaders decide the forest should be protected. There is a stream running through the forest, too. Which action would preservationists and conservationists agree on? A. Some fish can be caught in the stream. B. Fighting forest fires should be allowed. C. The forest and stream should be protected. D. Hunting shouldn’t be allowed in the forest. E. People should be allowed to camp in the forest.
Answer: fighting forest fires should be allowed
Explanation:
Answer: C: The forest and stream should be protected.
Explanation:
Which of the following is NOT TRUE about blood pressure?
A. It measures how much the blood is pressing against the vessels as it is pumped through
the system
B. It is affected by both genetic and environmental factors.
C. Hypotension indicates good health
D. hypertension indicates that your blood needs more pressure to be moved through the
veins
Answer:
c.Hypotension indicates good health
answer and show proof and ill give brainliest
Answer:
a
Explanation:
organism 1 it's the only one that doesn't have a source of energy
Need help on this please!!!
Answer:
1. D
2. G
3. C
4. A
Explanation:
An endothermic reaction is one that absorbs or uses heat energy. Its polar — er thermal — opposite, exothermic describes a reaction that makes or gives off heat. It can be easy to confuse the two, but if you can remember that endo means “in” and exo means "out,". Ectotherm, any so-called cold-blooded animal—that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.
Larger animals can keep their heat for a longer time than smaller animals. A small animal has a greater surface area for its size compared to an adult animal. That is why small animal, as well as a baby, is more prone to heat loss. Larger animals can keep their heat for a longer time.
Which of the following are characteristics of
Zygomycota? Check all that apply.
Answer:
Formation of a zygospore during sexual reproduction.
The lack of hyphal cell walls except in reproductive structures.
Answer:
3.spores produced in zygosporangia
5.important in the fermentation process
These are the correct answers on Edge 2020
How have the zooids adapted to survive predation on the continental shelf.
The initial velocity of an enzyme catalyzed reaction is determined by:_________.
a. graphically determining 1/2 Vmax.
b. calculating the amount of product formed over time while the amount of product is increasing in a linear manner.
c. calculating the amount of product formed over time from the beginning to the end of the reaction.
d. graphing the absorbances of known concentrations
Answer:
calculating the amount of product formed over time while the amount of product is increasing in a linear manner. ( B )
Explanation:
The initial velocity of an enzyme catalyzed reaction is determined by Calculating the amount of product formed over time while the amount of product is increasing in a linear manner
Initial Velocity of an enzyme is the described in relation to the amount of product produced per unit time at the beginning of a reaction.
The initial velocity of an enzyme reaction is determined by calculating the amount of product over time while it is increasing in a linear manner (Option B).
What is an enzyme?An enzyme is a protein that may act as a biological catalyst for a particular chemical reaction.
Enzymes work by speeding up the velocity of a given chemical reaction.The initial velocity of an enzyme can be calculated by determining the amount of product of the chemical reaction.In conclusion, the initial velocity of an enzyme reaction is determined by calculating the amount of product over time while it is increasing in a linear manner (Option B).
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Identify the true statements about RNA interference. Duplex RNA (dsRNA) can suppress the expression of a gene. miRNAs are short, single strands approximately 21 nucleotides long. miRNAs suppress gene expression by interfering with transcription. miRNA targets the gene from which it was transcribed. RNA interference can temporarily suppress the expression of a target gene.
Answer:
- Duplex RNA (dsRNA) can suppress the expression of a gene.
- miRNAs are short, single strands approximately 21 nucleotides long.
- miRNAs suppress gene expression by interfering with transcription.
- RNA interference can temporarily suppress the expression of a target gene.
Explanation:
The RNA interference (RNAi) mechanism is a naturally occurring biological process by which an organism suppresses gene expression by using sequence-specific small non-coding RNAs that are complementary to RNA (posttranscriptional silencing) or DNA (transcriptional silencing) sequences. Since its discovery, this mechanism has been exploited in molecular biology to control the expression of target genes. There are different classes of non-coding RNAs which are able to trigger RNAi gene silencing: microRNAs (miRNAs), small interfering RNAs (siRNAs), piwi-interacting RNAs (piRNAs, only present in animals), etc. During their functioning, these non-coding RNAs are loaded into the RNA-induced silencing complex (RISC) to direct them to target sequences and trigger RNAi (for example, by cleaving target mRNAs). miRNAs are short, evolutionary conserved RNAs, that associate to the RISC complex in order to trigger both transcriptional and posttranscriptional gene silencing. During their biogenesis, small non-coding RNAs are double-stranded RNA (dsRNA), but they lose a strand (the passenger strand) when associate with the RISC complex, conserving only one strand (the guide strand) that bind by complementary base pairing to target sequences (either DNA in the nucleus or RNA in the cytoplasm).
PLEASE HELP I WILL GIVE BRAINLIEST
Why would someone be in pain when showering with ceratopogonidae bites?
Answer:
the midge will pierce the skin with her mouth and pump saliva into the wound to prevent it clotting. It's this saliva which causes a mild immune response in humans, resulting in itchy red spots as the body seeks to repair the wound.
Explanation:
because the people want to scratch the bites which makes them worse
Answer:
YES,the midge will pierce the skin with her mouth and pump saliva into the wound to prevent it clotting. It's this saliva which causes a mild immune response in humans, resulting in itchy red spots as the body seeks to repair the wound.
What is the cell membrane made of? Check all that apply.
proteins
cellulose
carbohydrates
lipids
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
What are proteins?Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity.
What are carbohydrates?A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H), and oxygen (O) atoms, usually with a hydrogen-oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula Cm(H2O)n (where m may or may not be different from n). However, not all carbohydrates conform to this precise stoichiometric definition (e.g., uronic acids, deoxy-sugars such as fucose), nor are all chemicals that do conform to this definition automatically classified as carbohydrates (e.g. formaldehyde and acetic acid).
What are lipids?
In biology and biochemistry, a lipid is a biomolecule that is soluble in nonpolar solvents. Non-polar solvents are typically hydrocarbons used to dissolve other naturally occurring hydrocarbon lipid molecules that do not (or do not easily) dissolve in water, including fatty acids, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.
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Answer: 1, 3, & 4
Explanation:
edge
Who is the smartest man alive?
Answer: If its iq based then it would be William James
Explanation:
what are the materials that are emitted during a volcanic eruption?
Answer:
The most common volcanic gases are water vapour, carbon dioxide, sulfur dioxide, and hydrogen sulfide. Small quantities of other volatile elements and compounds also are present, such as hydrogen, helium, nitrogen, hydrogen chloride, hydrogen fluoride, and mercury.
Explain in detail the types of heterotrophic nutrition in plants. Give two examples of each type.
Answer:
HOPE IT HELPS..
MARK AS BRAINKLISTT
Heterotrophic nutrition can be one of three types , holozoic, saprophytic or parasitic. Holozoic nutrition can be seen in most vertebrates and some unicellular organisms like the amoeba. Saprophytic nutrition is where the organisms feed on dead and decaying matter. Examples include bacteria and fungi.
What are the four classes of nutrients?
Answer:
carbohydrates
lipids
proteins
water
pleaseeeeeeeeeeeeeeee helppppppppppp
Answer:
It's the second answer or B
Explanation:
#14 According to the behaviorist theories of language acquisition, language is __________.
A. learned through imitation and reinforcement
B. an innate ability in humans
C. a behavioral trait of all humans and animals
D. both a mixture of nature and nurture
Answer:
A. learned through imitation and reinforcement
Explanation:
good luck bae<3
According to the behaviorist theories of language acquisition, language is learned through imitation and reinforcement. The correct option is A.
What is behaviorist theory?The central tenet of behaviorism is that all actions are acquired through interactions with the environment. According to this learning theory, environmental circumstances have a much greater impact on behavior than innate or inherited traits.
Skinner (1985) equated learning a language to verbal behavior in accordance with behaviorist theory. Instead, of attempting to explain the brain structures that underlie these kinds of activities, language acquisition can be observed, just like any other behavior.
Therefore, the correct option is A. learned through imitation and reinforcement.
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In which direction does air flow?
from east to west
from warm temperatures to cold temperatures
from areas of high pressure to areas of low pressure
from high elevations to low elevations
The answer is C. from areas of high pressure to areas of low pressure
If you cross parent 1 (Rr) with parent 2 (Rr), what percentage of the offspring will have a purebred geneotype?
A:) 25%, 1/4
B:) 50%, 2/4
C:) 75%, 3/4
D:) 100%, 4/4
answer:c
Explanation:
first we will multiply parent 1(Rr)and parent 2(Rr) like the photo above
Which process involves the deliberate alteration of an organism’s genetic material?
Answer:
recombinat DNA , epidemiology,
In diagrams a full moon is represent with a
A. A white circle
B. A completely shaded circle
Answer:
A
Explanation:
cause you can see the entire moon at night(if there are no clouds present)
In a one-group pretest-posttest design affected by the problem of testing effects, the reduction found on the posttest is likely to be the result of _____
Answer:
taking the pretest
Explanation:
A one-group pretest–posttest design is a type of research design generally used in behavioral research aimed at estimating the treatment effects on the sample. In this experimental design, the target group of participants is first pre-tested on the dependent variable and, subsequently, post-tested after the administration of a treatment. In consequence, the participants of the target group receive the same treatment and assessment. The problem of testing effects indicates that testing may become a problem when the pretest may change participant's behavior. When there are statistically significant differences between the pretest and posttest data, it is possible to support the working hypothesis.