state what would happen to the ion pumping activity and atp hydrolyzing activity of the na /k pump if the plasma membrane of animal cells was made entirely permeable to na . what would happen to the na distribution?
Answers
The distribution of Na will cause the cells to ne hypertonic and thus Failure of the Na⁺-K⁺ pump can cause cells to swell.
The osmotic pressure of a cell is the sum of the concentrations of various ionic species and many proteins and other organic compounds inside the cell. If this is higher than the osmotic pressure outside the cell, water will flow into the cell by osmosis. Thus, inhibition of this pump causes cell depolarization.
This is due not only to changes in the Na+ and K+ concentration gradients, but also to the loss of the potential component of the resting membrane potential. Partial inhibition of the electrogenic Na+/K+ pump results in cell swelling and an increase in the number of functional Na+/K+ ATPase molecules within the membrane. This compensates for the effects caused by pump suppression.
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Related Questions
Which element is found in nucleic acids but not in amino acids?
O carbon
O hydrogen
O nitrogen
O phosphorus
Answers
Answer:
phosphorus
Explanation:
An amino acid includes simple organic compound, which consists of an amino (-NH₂) group and a carboxylic group ( - COOH). Thus, phosphorous is the element that is found in nucleic acids but not in the proteins.
Answer:
phosphorus
Explanation:
8. The sound from an automobile (car) caused a dog to run to the side of
the road. This sounds is an example of a *
1
O a stimulus
b. response
C. reflex
d. synapse
Answers
list the animals in your cladogram in order of distance from the least closely related organism to the most closely related.
Answers
In a cladogram, the animals are placed in order from the least to most closely related. Starting from the least closely related organism, the cladogram could include an alligator, a cow, a human, and a chimpanzee, in that order.
The alligator, being the furthest away in the cladogram, is the least closely related organism. The cow, closely related to the alligator, but still separate enough to be its own organism, follows next in the cladogram.
A human, more closely related to the cow and the alligator, is the third organism in the list. Lastly, the closest related organism to the alligator, cow, and human is the chimpanzee, making it the final organism in the cladogram.
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A. Modified True or False:
Write true if the statements is correct. Otherwise, change the underlined word/phrase to correct the statement. Write your answer in the space provide before the number.
______________1. Sexual reproduction involves the union of male and female sex cell.
______________2. Some animals can reproduce without the presences of the gametes or sex cell.
______________3. Mitosis is the process of the production of sex cells. ______________4. Asexual reproduction produces offspring that are genetically
identical with the parents.
______________5. Parthenogenesis does not require the union of sperm cell and egg cell.
If you answer it all correctly you will be rewarded 10 points
Answers
Answer:
1.FALSE
2.TRUE
3.FALSE
4.I THINK IT IS A TRUE
5.TRUE
the acceptor stem is not critical for an aminoacyl-trna synthetase-trna interaction. (True or False)
Answers
False. The acceptor stem is critical for an aminoacyl-tRNA synthetase-trna interaction, as it contains the 3' end of the tRNA molecule where the amino acid is attached by the aminoacyl-trna synthetase.
The acceptor stem is a region located at the 3' end of a tRNA molecule that plays a crucial role in protein synthesis. Each tRNA molecule has a specific amino acid attached to it, and the acceptor stem is where the amino acid is attached to the tRNA molecule. The acceptor stem has a specific sequence of nucleotides that is complementary to the sequence of the codon on the mRNA that codes for the specific amino acid carried by the tRNA molecule. This complementary sequence ensures that the correct amino acid is attached to the tRNA molecule during protein synthesis. The attachment of the amino acid to the tRNA molecule is catalyzed by an enzyme called aminoacyl-tRNA synthetase. The enzyme recognizes the tRNA molecule through its acceptor stem and attaches the correct amino acid to the 3' end of the acceptor stem. This process is crucial for accurate translation of the genetic code from the mRNA molecule to the amino acid sequence in the protein. If the acceptor stem is altered, it could affect the ability of the aminoacyl-tRNA synthetase to attach the correct amino acid to the tRNA molecule, resulting in errors in protein synthesis.
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the wet bulb temperature is 10 C the Dry bulb temperature is 14 C what is the relative humidity?
Answers
The relative humidity is approximately 22.9% based on the given wet bulb temperature of 10°C and dry bulb temperature of 14°C.
Relative humidityWet bulb temperature: 10°C = 50°F
Dry bulb temperature: 14°C = 57.2°F
SVP at wet bulb temperature: 0.284 * \(e^(17.27 * 10 / (10 + 237.3))\)= 0.284 * \(e^(-7.09)\) = 0.284 * 0.000828 = 0.0002356 psi
SVP at dry bulb temperature: 0.284 *\(e^(17.27 * 14 / (14 + 237.3))\) = 0.284 * e^(-5.97) = 0.284 * 0.002562 = 0.0007296 psi
AVP = 0.0002356 - (0.00066 * (57.2 - 50) * 14.7) = 0.0002356 - (0.00066 * 7.2 * 14.7) = 0.0002356 - 0.0686 = 0.000167 psi
RH = (AVP / SVP at dry bulb temperature) * 100
RH = (0.000167 / 0.0007296) * 100 = 0.229 * 100 = 22.9%
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List the cavity in which each of the following organs is located. Brain - Stomach - Lungs - Liver - Bladder - Spinal cord - Heart - Ovaries - Uterus - Esophagus - Small intestines - Pancreas -
Answers
Answer:
The human body contains following body cavities known as The dorsal body cavity (vertebral cavity), ventral body cavity (thoracic cavity, abdominal cavity, pelvic cavity
The brain - vertebral cavity of the dorsal cavity
Lungs - thoracic cavity
Liver - abdominal cavity
Bladder - abdominal cavity
Spinal cord - vertebral cavity
Heart - thoracic cavity
Ovaries - Pelvic cavity
Uterus - Pelvic cavity
Esophagus - abdominal cavity
Small intestines - abdominal cavity
Pancreas - abdominal cavity
Answer:
A, B, C, and F
Explanation:
Compression is the type of stress that deforms rock at which location?
A. Convergent boundaries
B. Normal faults
C. Divergent boundaries
D. Transform faults
Answers
Answer:
I think the answer would be A.
Convergent boundaries
Explanation:
a 4.00-kg object is moving east at 2.00 m/s when it collides with a 6.00-kg object that is initially at rest. after the collision the larger object moves east at 0.800 m/s.
Answers
After the collision, the smaller object moves east at 0.800 m/s.
The question provides information about a collision between a 4.00-kg object moving east at 2.00 m/s and a 6.00-kg object initially at rest. After the collision, the larger object moves east at 0.800 m/s.
To determine the final velocity of the smaller object, we can use the principle of conservation of momentum. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.
The momentum of an object is given by the product of its mass and velocity.
Before the collision, the total momentum is (4.00 kg) * (2.00 m/s) = 8.00 kg⋅m/s.
After the collision, the larger object moves east at 0.800 m/s.
To find the final velocity of the smaller object, we can subtract the momentum of the larger object from the total momentum and divide by the mass of the smaller object.
The momentum of the larger object is (6.00 kg) * (0.800 m/s) = 4.80 kg⋅m/s.
The momentum of the smaller object can be calculated by subtracting the momentum of the larger object from the total momentum: 8.00 kg⋅m/s - 4.80 kg⋅m/s = 3.20 kg⋅m/s.
Finally, we can find the final velocity of the smaller object by dividing its momentum by its mass: (3.20 kg⋅m/s) / (4.00 kg) = 0.800 m/s.
Therefore, after the collision, the smaller object moves east at 0.800 m/s.
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individual organism can adaptTrue, But it has to increase their fitnesssometimes, it depends on where they are located if the adoption is helpful or notfalse, only a population can adapt
Answers
Organisms can adapt to different environments, however, this usually occurs over generations and at the population level. At the level of the individual, an example is mutations, in which the offspring may have different characteristics from the progeny. However, these adaptations of the offspring will either be detrimental or give an advantage depending on the environment in which it is
Because these changes occur gradually over generations, individual organisms cannot increase their fitness on their own. And although there are special cases in which an organism can adapt to environmental changes through a phenomenon called phenotypic plasticity, this is not common in all species and is not due to a genetic change in the individual. Therefore, the answer would be B (sometimes, it depends on where they are located if the adaptation is helpful or not).
A mutation was made in the drosophila gene sex lethal such the third exon was never spliced out. What is most likely effect this mutation will have on sex determination?
Answers
In Drosophila, the s.e.x lethal (Sxl) gene plays a crucial role in s.e.x determination by regulating the alternative splicing of pre-messenger RNA (pre-mRNA).
The normal function of the Sxl gene is to promote the splicing of the female-specific transcript, while the male-specific transcript remains unspliced and non-functional. If a mutation occurs in the Sxl gene, specifically in which the third exon is never spliced out, it would likely disrupt the normal splicing pattern and result in the production of an abnormal Sxl protein. This aberrant protein would not be able to regulate s.e.x determination properly.
The most likely effect of this mutation would be a disruption of female sex determination in Drosophila. The unspliced third exon would likely lead to the production of a non-functional or unstable Sxl protein. As a result, the female-specific splicing pattern may not occur correctly, and the female-specific transcripts would not be produced at the appropriate levels.
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perhaps the strongest social and emotional bond in chimpanzees and bonobos is between:
Answers
The strongest social and emotional bond in chimpanzees and bonobos is between mother and infant.
Chimpanzees and bonobos are highly social animals that live in groups of up to 100 individuals. The group is led by a dominant male, but the most important relationships in the group are between mothers and their infants.
Mothers and infants spend most of their time together, and they form strong bonds of affection. Mothers provide their infants with food, protection, and care, and infants return the favor by providing their mothers with companionship and emotional support.
The bond between mother and infant is so strong that it can last for many years. Even after infants have grown up and left the group, they often return to visit their mothers. The bond between mother and infant is essential for the survival of both the infant and the group.
Mothers help their infants to learn how to find food, avoid predators, and interact with other members of the group. Infants help to strengthen the bonds within the group by providing their mothers with companionship and emotional support.
The strong bond between mother and infant is one of the things that makes chimpanzees and bonobos such fascinating animals. It is a bond that is based on love, trust, and mutual support. It is a bond that is essential for the survival of both the individual and the group.
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What did Darwin see in South America that surprised him?
Answers
Answer:
In South America, Darwin saw fossils of sea animals high in the mountains.
Explanation:
Which of the following do ALL living things need in an ecosystem? select all that apply
matter
sunlight
energy
soil
Answers
Answer:
sunlight, energy
Explanation:
i dont really have an explenation
Which statement besisummarizes how viruses cause disease
A Viruses use cell parts for nutrients
B. Viruses reproduce best in warm, moist environments
C. Viruses use living cells to make new viruses
D Viruses absorb nutrients from another organism's body
Answers
Warm-blooded mammals have an optimum temperature of
A. greater than 50 degrees C
B. 37 degrees C
C. about 45 degrees C
D. less than 20 degrees C
Answers
Answer:
B. 37 Degrees
Explanation:
Warm-bloodedness, also called Homoiothermy, in animals, the ability to maintain a relatively constant internal temperature (about 37° C [99° F] for mammals, about 40° C [104° F] for birds), regardless of the environmental temperature.
The answer is B I’m pretty sure
What part of the nervous system is responsible for blushing?
Answers
Answer:
sympathetic the sympathetic Nervous system
Explanation:
Answer:sympathetic nervous system. ✅
Using plasmid S2 as an example, find the restriction sites for the enzyme Pvull. How many sites are there? If Pvull was used to cut (digest) this plasmid, how many fragments would it make?
Answers
The restriction enzyme Pvull cuts DNA sequences that match the following sequence: CAGCTG.
This enzyme would cleave a DNA strand between the G and the C. It is referred to as a blunt end enzyme because it cuts between two base pairs of DNA, producing blunt ends for the fragments. The plasmid S2 has several sites that Pvull can cut. The total number of restriction sites on plasmid S2 for the Pvull enzyme is determined by examining the sequence of the plasmid.
There are no data to suggest that the plasmid S2 has been sequenced, thus it is impossible to find the number of Pvull restriction sites on it. If Pvull was used to cut the plasmid S2, it would cleave it into multiple fragments. The number of fragments generated would be determined by how many Pvull sites are present on the plasmid. Since we do not know the number of Pvull restriction sites on the plasmid S2, we cannot determine how many fragments will be produced.
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Which is an example of a recent development used to address food
shortages in urban areas?
OA
O B.
O c.
Answers
Answer: it’s c
Explanation:
As the altitude increases within Earths atmosphere, what happens to air pressure?
Answers
Answer:
As the altitude increases within Earths atmosphere, the air pressure increases
what is mitosis and meiosis?
Answers
Answer:
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. Mitosis is the division of a cell into two daughter cells that are genetically identical to the parent cell. Meiosis is the division of a germ cell into four sex cells (e.g. egg or sperm), each with half the number of chromosomes of the parent cell. Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome. Mitosis gives two nuclei, and hence two cells, while meiosis gives four. Mitosis gives identical cells to each other and to the mother cell, while meiosis leads to genetic variation due to crossing over and independent assortment. Mitosis includes one division, while meiosis includes two.
The interaction between bees and sunflowers is an example ofanswer choicespredationherbivoryparasitismmutualism
Answers
Answer:
example of mutualism
Explanation:
The interaction between bees and sunflowers is an example of mutualism. b/c mutualism is a type of ecological connection where both species gain from the interaction. In the case of sunflowers and bees, the flowers profit from the pollination services supplied by the bees, while the bees gain from the nectar provided by the blooms.
62.mohr, l.; carceles-cordon, m.; woo, j.; cordon-cardo, c.; domingo-domenech, j.; rodriguez-bravo, v. generation of prostate cancer cell models of resistance to the anti-mitotic agent docetaxel. j. vis. exp. 2017, e56327
Answers
A typical mechanism of disease development and a prognostic factor for malignant tumors is developed resistance to prostate cancer treatments. Resistance to MTAs, such as the taxane Docetaxel, determines treatment failure and the progression of the disease into lethal stages.
The variety of processes causing acquired resistance has been investigated for decades, but they remain poorly understood, which severely restricts the creation of novel therapeutic approaches. We outline a procedure for creating Docetaxel-resistant prostate cancer cell lines in this article.
The Docetaxel-resistant cell lines created by this method have been successfully used in recent studies, such as the loss of resistance properties over time, and they present an opportunity to enhance our knowledge of the molecular mechanisms behind acquired chemoresistance in deadly prostate cancer.
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Is the Great Green Wall an example of Secondary Succession?
Answers
Answer:
The Great Green Wall is taking root in Africa's Sahel region, at the southern edge of the Sahara desert. The Great Green Wall is a symbol of hope in the face of one of the biggest challenges of our time - desertification. This game changing African-led initiative aims to restore Africa's degraded landscapes and transform millions of lives in one of the world's poorest regions, the Sahel.
Primary succession occurs on land where no previous growth has taken place and there is no substrate/soil. Secondary succession occurs on land where there has been previous growth, the soil and seed bank makes up the substrate.
Explanation:
I majored in Biology
help pls. i’ll give u brainliest fr
Answers
Answer: Covalent Bond
Explanation:
When carbon atoms bond with each other, it makes a covalent bond.
Which of the following is found in the 'rungs' of a DNA strand?
A. Uracil
B. Thymine
C. Deoxy Ribose
D. Phosphate
Answers
Answer:
Thymine
Explanation:
which of the following is correct?
cells differentiate
cells come from the air
cells come from cells
A and C
Answers
Answer:
The answer to your question is Cells come from other Cells.
In 1-6 below, a directional term (e.g., distal in 1) is followed by terms indicating different
body structures or locations (e.g., the elbow/the shoulder). In each case, choose the structure or
location that best matches the directional term given.
1. Distal—the elbow/the shoulder
4. Superficial—the skeleton/the muscles
2. Lateral—the shoulder/the breastbone
5. Proximal—the knee/the foot
3. Superior—the forehead/the chin
6. Inferior—the liver/the small intestine
Answers
Answer:
let me know when you got the answer
Explanation:
In which of the following does the muscle apply force while maintaining an equal length?
a. Eccentric muscle contraction
b. Isotonic muscle contraction
c. Concentric muscle contraction
d. Isokinetic muscle contraction
e. Isometric muscle contraction
Answers
Isometric muscle contraction is a type of muscle contraction in which the muscle applies force while maintaining an equal length.
In an isometric contraction, there is no movement or change in the length of the muscle. Instead, the muscle contracts and exerts force against an immovable object, such as a wall or floor. This type of contraction is essential for maintaining posture and stabilizing joints. When you hold a plank, for example, you are performing an isometric contraction of your abdominal muscles.Isotonic muscle contraction is a type of muscle contraction in which the muscle contracts and changes length. There are two types of isotonic contractions: concentric and eccentric. In a concentric contraction, the muscle shortens as it contracts.
When you lift a weight, for example, your biceps muscles are performing concentric contractions. In an eccentric contraction, the muscle lengthens as it contracts. When you lower the weight, your biceps are performing eccentric contractions. Isokinetic muscle contraction is a type of muscle contraction in which the speed of contraction is constant, regardless of the amount of force generated. Isokinetic contractions are often used in rehabilitation settings to help patients recover from injuries. Eccentric muscle contraction is a type of isotonic contraction in which the muscle lengthens as it contracts.
When you lower a weight, for example, your biceps are performing eccentric contractions. Concentric muscle contraction is a type of isotonic contraction in which the muscle shortens as it contracts. When you lift a weight, for example, your biceps are performing concentric contractions. Thus, the correct option is e. Isometric muscle contraction.
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which feature is not characteristic of nematodes? select the correct answer below: a. nervous system b. pseudocoelom c. muscles strictly d. parthogenetic
Answers
The nematodes possess a simple nervous system, a pseudocoelum, and muscles but they are not strictly pathogenetic. So the correct option is option D.
The body shape of nematodes is bilaterally symmetric, elongated, and typically tapered at either end. Some species have a body cavity called the pseudocoel that is filled with fluid. The pseudocoelum is found in the digestive tract between the body wall and the digestive tract. Nematodes, like arthropods, as well as members of six different phyla, secrete an outer cuticle. This cuticle is regularly molted.
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