Final answer:
Cell size is limited because as a cell grows, its surface area to volume ratio becomes less favorable for efficient diffusion of nutrients and waste, similar to transportation issues in an overly large city. Cells remain small or adapt by becoming flat to maintain efficient diffusion and cellular function.
Explanation:
An analogy that explains why cell size is limited can be thought of in terms of a city. If the city (cell) is too large, transportation (diffusion of nutrients and waste) becomes inefficient, and the central areas (the center of the cell) may not receive the necessary resources or be able to dispose of waste effectively. This inefficiency of resource travel limits the size of the city, just as it restricts the growth of a cell.
The limitations of cell size are primarily due to the surface area to volume ratio, which determines how effectively substances can enter and leave a cell. As a cell grows, its volume increases faster than its surface area, making it challenging to transport substances across the cell membrane efficiently. Therefore, cells have adapted to remain small or flat to maintain a sufficient surface area to volume ratio, allowing for efficient diffusion and cellular function.
Overall, to function optimally, cells must maintain a size that supports quick and effective diffusion of nutrients and waste. This is why most organisms, even very large ones, are made up of tiny cells instead of smaller ones.
the unequal sharing of electrons results in what
Racial segregation and exclusion are most likely to be eliminated in sports when
Movement of a bone toward the midline of the body is known as
How is breathing related to cell respiration? (Hint: Think about both the reactants and the products of cellular respiration)
Answer:
We breathe oxygen that is captured through cellular respiration.
Explanation:
Cellular respiration is the chemical process carried out by living beings and takes place inside cells. It is necessary to maintain the functioning of our body. For cellular respiration to happen efficiently, in addition to the absorption of oxygen (which is essential for our breathing), the body's nutritional needs must be met. That is, living beings need to ingest carbohydrates, lipids and proteins. However, as these molecules are large, the organism needs to break them down so that they can be used as an energy source. After ingestion, simple carbohydrates, such as glucose, fatty acids and amino acids, remain. Cellular respiration takes place at this stage.
Most used by living beings, aerobic respiration uses glucose as its main source of energy. Its function is to start from the molecules, obtained by the producing organisms, in the process of photosynthesis and by consumers' food. Aerobic respiration is represented by the following equation: C6H12O6 + 6 O2 - 6 CO2 + 6 H2O + Energy
In this equation, it is possible to identify that the glucose molecule (C6H12O6) is divided, so that it can originate the simplest substances (CO2 and H2O). This mechanism occurs within the mitochondria, a cytoplasmic organelle that acts as a power plant. With this, several reactions with the participation of enzymes and coezimas are carried out within the aerobic respiration, which favors the constant oxidation of glucose. In this way, this way of obtaining energy generates thirty-six moles of ATP from one mole of glucose. Aerobic respiration is divided into three stages: glycolysis, the Krebs cycle and oxidative phosphorylation (respiratory chain).
Breathing is related to cell respiration as oxygen is used in cellular respiration and carbon dioxide is exhaled during breathing.
Breathing is related to cell respiration in several ways. In cellular respiration, oxygen is used as a reactant to break down glucose and produce ATP, which is the energy currency of cells.
Carbon dioxide is a waste product of this process and is exhaled during breathing.
The respiratory system, which includes the lungs, muscles, and passageways, helps to transport oxygen from the air into the body and remove carbon dioxide.
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This element is found in all living things. It is recycled when organisms die. It is transformed from one form to another through photosynthesis and cellular respiration. The element is
Answer:
carbon
Explanation:
The peripheral nervous system refers to the nervous structures outside of the:
Which is the number of characteristics that define a living thing? 6 3 4 8
The loss of the ability of the larynx to produce normal speech sounds is called:
A nurse is caring for an infant who has just undergone myelomeningocele repair. what should the nursing plan of care include
While taking care of myelomeningocele infected infect, the nurse should undergo the plan of care:
The nurse should have a medication chart. The nurse should schedule doctor visits. The nurse should schedule feeding. The nurse should take care of proper hygiene routine.
Further explanation:
Myelomeningocele is a severe disease of spina bifida. The infant gets infected when the spinal cord nerves protrude from the opening of the spine. These nerves are exposed to the outside. It is treated or repaired within the uterus through an incision. The infant who is suffering from this disease born by a cesarean method.
The children with this disease might experience partial or complete paralysis. They require a device like braces, wheelchairs and crutches. The nurse should take care of physical therapy, which is essential for muscle strengthening.
There is a probability that the infant might have an allergy to latex (natural rubber); the nurse should avoid exposing him or her to any latex product.
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Answer Details:
Grade: High school
Subject: Biology
Chapter: Central Nervous System.
Keywords:
Nurse, myelomeningocele, spina bifida, spinal cord, nerves, uterus, incision, cesarean, paralysis, physical, latex, infant, allergy.
Some antimicrobial chemicals are considered to be disinfectants and antiseptics. some antimicrobial chemicals are considered to be disinfectants and antiseptics.
a. True
b. False
The statement is true. Disinfectants and antiseptics are both types of antimicrobial chemicals. Disinfectants are used for inanimate objects while antiseptics are for living tissues.
Explanation:This statement is indeed true. Both disinfectants and antiseptics are antimicrobial chemicals. Disinfectants are substances that are applied to non-living objects to destroy microorganisms. For example, you might use a disinfectant to clean a bathroom. On the other hand, antiseptics are applied to living tissues to reduce the possibility of infection, sepsis, or putrefaction. For instance, a doctor may use an antiseptic on your skin before making an incision.
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Self-esteem takes on a hierarchical structure in __________.
a.toddlerhood
b.preschool
c.middle childhood
d.adolescence
The hierarchical structure of self-esteem typically becomes evident during adolescence. This time is marked by an increased awareness of personal strengths and weaknesses, resulting in a more complex hierarchical structure of self-esteem
Explanation:Self-esteem is a fundamental aspect of self-perception, playing a pivotal part from early childhood to adulthood. The hierarchical nature of self-esteem is usually noticeable in adolescence. This age period is characterized by an increased understanding of the self and society's expectations. Adolescents begin to create a more complex, hierarchical structure of self-esteem as they become more aware and critical of their strengths, weaknesses, and variations in their performance across different domains like schoolwork, sports, peer interactions, and family relationships.
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Controlling what enters and leaves the cell in an important function of the
While assessing a neonate’s temperature, the nurse observes a drop in the body temperature. what is the most appropriate reason for this temperature drop?
The right answer is decreased nonshivering thermogenesis.
The increase in metabolism allows an increase in the production of heat. Newborns use their brown fat as a source of heat, it is a non shivering thermogenesis.
The second mechanism for increasing heat in humans is increased muscle tone and shivering, but in the newborn there is no chill.
__________ is characterized by excessive/constant worry, restlessness, irritability, and disturbed sleep.
Which pathway will run if there is a high level of adp?
a. glycolysis
b. gluconeogenesis
c. glyconeogenesis
d. adp kinophosphorylase cycle?
What is dna? how do scientists isolate dna in order to study it? how does dna differ from person to person? how can tools of molecular biology be used to compare the dna of two individuals? what are restriction enzymes? what are restriction fragment length polymorphisms? what is gel electrophoresis and how can the results of this technique be interpreted?
DNA is a molecule that carries genetic information and can be isolated by breaking open cells. DNA differs between individuals, and molecular biology tools can be used to compare DNA. Restriction enzymes and gel electrophoresis are used to study DNA fragments.
Explanation:DNA, or deoxyribonucleic acid, is a molecule that carries genetic information in all living organisms. It is composed of nucleotides and has a double helix structure. Scientists isolate DNA by breaking open cells and enzymatically destroying other macromolecules. They use methods like gel electrophoresis to separate and visualize DNA fragments. DNA differs from person to person due to variations in the sequence of nucleotides. Tools of molecular biology, such as PCR and DNA sequencing, can be used to compare the DNA of two individuals.
Restriction enzymes are enzymes that cleave DNA at specific recognition sites. They are used in molecular biology to cut DNA into fragments. Restriction fragment length polymorphisms (RFLPs) are variations between individuals in the length of DNA fragments generated by restriction enzymes. Gel electrophoresis is a technique used to separate DNA fragments based on their size and charge. In gel electrophoresis, DNA fragments are loaded onto an agarose gel and subjected to an electric current. The smaller fragments move faster and travel farther, while the larger fragments move slower and stay closer to the top. The results of gel electrophoresis can be interpreted by visualizing the bands produced and determining the sizes of the DNA fragments.
Trees use narrow tubes to transport water upward. Which property of water allows the water to rise in these narrow tubes?
High Vapor Pressure
Cohesion Molecules
High Boiling Point
Net Charge of Molecules
Was B: Cohesion Molecules correct?
In the southern european plains, a species of flower comes in two colors, purple and pink. when pink flowers are most common in a field, bees visit and pollinate the purple flowers more often, and vice versa. this switching of pollinator preference will result in __________.
Suppose that the coding region of a gene contains 1,800 base pairs, with 570 in exon 1, 420 in exon 2, and 810 in exon 3 (not counting the stop codon). the protein translated from this gene will consist of _______ amino acids
The protein translated from a gene consists of a number of amino acids equivalent to the number of codons (base pairs divided by three) within the gene. In this case, the protein will consist of 600 amino acids.
Explanation:The protein translated from a gene is determined by a triplet code, meaning every three nucleotide bases (codons) in the gene code for a single amino acid. Therefore, to calculate the number of amino acids, you would need to count the amount of triplet codons, or base pairs divided by three. In this case, the gene contains 1800 base pairs. So, 1800 base pairs divided by 3 equals 600. Hence, ignoring the stop codon, the protein translated from this gene will consist of 600 amino acids.
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Sexual reproduction is important for the survival of the species. It is important for ALL BUT ONE of these reasons. That is
Answer:
it is necessary for the survival of the individual.
Explanation:
Sexual reproduction is important to the survival of any species for all the reasons except it is necessary for the survival of the individual. Genetic variability is extremely important to the overall survival of a species, not an individual. It leads to organisms more "fit" to survive in their given environment.
What is the difference between the position of the surface proteins and the membrane -spanning proteins
When you go outside, it is common to hear a variety of bird songs. these songs vary among bird species as well as bird flocks. interestingly, some bird species that are highly unrelated have very similar song qualities. what can you conclude from this phenomenon?
Uv waves and gamma waves can cause dna mutations that result in various forms of cancers. explain why using the terminology found within the passage. give one example of the damage caused by one of these waves.
On reviewing the medical reports of a postpartum patient, the nurse finds that the patient has homans' sign. what does the nurse interpret from this finding?
The main function of glycogen is
3 ways in which the female pelvis is different from male
By controlling the substances that enter and leave the cell, the cell membrane helps maintain homeostasis in the cell. True or false
Answer:
The correct answer is- True.
Explanation:
Homeostasis the process of maintaining the steady physio-chemical environment in the body. Body cells maintain homeostasis by controlling the substances that enter and leave the cell with the help of the plasma membrane.
The plasma membrane is semi-permeable in nature, therefore, it allows only selective molecules to be transfer in the cell and outside the cell. Plasma membrane maintains the homeostasis by managing several factors.
It maintains a higher concentration of ions like potassium into the cell, maintains the osmotic balance of the cell by osmosis of water molecule in and out of the cell. Maintains the ionic balance of both inside and outside the cell. Therefore, the correct answer is true.
Which situation would deplete freshwater?
A. Water demand is greater than its renewal or recharge rate.
B. Precipitation is collected and stored for later use.
C. Precipitation relieves drought conditions.
D. Water use is less than its supply.
Answer:
The correct answer is A.
Explanation:
To deplete freshwater consumption of the water must be greater than the renewal rate. If the precipitation collected it does not mean it depleted, it can be still used later on. If precipitation relieves drought also doesn't mean water is gone, water would be still accessible by using wells and it is stored underwater. If water is less than supply than there will be no problem at all. So if water demand is higher than water renewal the opposite is true and freshwater supplies would finish.
Answer:
yes is A
Explanation:
for apxs
Which type of vertebrae are characterized by the presence of transverse foramina?
Which describes one of the ways proteins behave in facilitated diffusion?
A)They change membranes.
B)They use ATP.
C)They change shape.
D)They create channels..
Option D is correct.
D)They create channels.
Explanation:Facilitated diffusion is the movement of molecules across the cell membrane of a cell through carrier proteins and protein channels. IN Facilitated diffusion no energy is required so it is called passive transport.
The molecules that can not directly diffuse across the membrane, they are transported through special channels and carrier proteins.