Answers
Answer: 1. In CF, the body makes abnormal CFTR protein or none at all. Without normal CFTR protein, the cells lining the pathways (tubes) inside some organs make thick, sticky mucus rather than the normal thin, watery kind. Thick mucus can trap bacteria in the lungs, leading to infection, inflammation, and breathing problems. 2. When the CFTR protein is defective, epithelial cells can't regulate the way that chloride (part of the salt called sodium chloride) passes across cell membranes. 3. Mutations in the DMD gene cause the Duchenne and Becker forms of muscular dystrophy. The DMD gene provides instructions for making a protein called dystrophin . This protein is located primarily in skeletal and cardiac muscle, where it helps stabilize and protect muscle fibers. Collapse Section. DMD, the largest known human gene, provides instructions for making a protein called dystrophin. This protein is located primarily in muscles used for movement (skeletal muscles) and in heart (cardiac) muscle. 4. Lack of the dystrophin protein in muscle cells causes them to be fragile and easily damaged. DMD carriers are females who have a normal dystrophin gene on one X chromosome and an abnormal dystrophin gene on the other X chromosome. Most carriers of DMD do not themselves have signs and symptoms of the disease, but a minority do. Symptoms can range from mild skeletal muscle weakness or cardiac involvement to severe weakness or cardiac effects and can begin in childhood or adulthood. 5. Scurvy happens when there is a lack of vitamin C, or ascorbic acid. The deficiency leads to symptoms of weakness, anemia, gum disease, and skin problems. This is because vitamin C is needed for making collagen, an important component in connective tissues. 6. composed of ground substance and fibers. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substance consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. brainliest?
Explanation:
Related Questions
why can we go for a long time without eating but not breathing
Answers
Is there always enough rainfall in the island for gardening?
Answers
Explain the relationship between DNA, genes, chromosomes, and traits.
Answers
Answer:
Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene
Viruses are specific to the host they infect? True False
Answers
Answer:
false
Explanation:
the role of enzymes in seed germination
Answers
Answer:
yes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help plz..............
Answers
Answer:
Should be 50% tell me if Im right
Which cellular change in an organism could be inherited by the next generation?
1.
a change in the ribosomes in the pancreas of a squirrel
2.
the deletion of a single DNA base in a sperm cell of a trout
3.
a decrease in the size of a vacuole in a rose leaf cell
4.
the transfer of a piece of a chromosome in the skin cell of a raccoon
Answers
Answer:
4.
Explanation:
Chromosomes are passed on to children. Each parent gives 23 chromosomes to create a full set of 46.
A cell with a diploid number of 2n = 8 undergoes mitosis. How many
chromosomes will EACH new cell have?
Answers
Answer:
8
Explanation:
Mitosis, a type of cellular division, involves the division into two daughter cells that are genetically identical to the parent cell. They are genetically identical in the sense that the daughter cells contain the exact same DNA sequence as the parent cell and also, the chromosome number does not change.
In this case, a cell is said to have a diploid number (2n) of 8 chromosomes. It will therefore, undergo mitosis to produce two daughter cells with 8 chromosomes each. For this reason, mitosis is called MULTIPLICATION DIVISION.
Drag the given black and white squares to the correct location on the chart. Each square can be used more than once.
The pedigree chart shows the inheritance of an X-linked recessive genetic trait. Fill in the dashed boxes to correctly complete the chart.
Answers
Answer:i hope this helps i guess
Explanation:
Answer:
This is correct on PLATO
Explain the trend that is related to biodiversity levels of ecosystems
I need it ASAP
Answers
Answer:
Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity. Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms. It occurs within a species as well as between species.
Which of the following is an example of a learned behavior? *
crying baby
swimming fish
walking
breathing
Answers
Answer:
Walking
Explanation:
Choose one of the bubbles state whether you think we should develop this technology, and explain your reasoning
Answers
Answer:
The green buble
Explanation:
Antibiotics are added to the animal feed or drinking water of cattle, hogs, poultry and other food-producing animals to help them gain weight faster or use less food to gain weight.
Because all uses of antimicrobial drugs, animals contribute to the development of antimicrobial resistance, it is important to use these drugs only when medically necessary.
the production (e.g. growth enhancement) purposes as well as for the treatment, control or prevention of animal diseases. Even today, it is not entirely understood how these drugs make animals grow faster. The drugs are primarily added to feed, although they are sometimes added to the animals’ drinking water.
Protozoa are a type of unicellular organisms.
True
False
Answers
Answer:
True
Protozoa are eukaryotic unicellular organisms.
It's true lol and why do you take forever to get clothes?
Homogenization of rat liver cells results in the rupture of the cell membranes. Centrifugation of this homogenate compacts some of the homogenate into a pellet in the bottom of the centrifuge tube. Bathing this pellet with a solution containing succinate (a four-carbon organic compound), phosphate ions, oxygen, and ADP yields metabolic activity, including the production of ATP and the uptake of oxygen. This pellet most likely contains
Answers
Complete question:
Homogenization of rat liver cells results in the rupture of the cell membranes. Centrifugation of this homogenate compacts some of the homogenates into a pellet at the bottom of the centrifuge tube. Bathing this pellet with a solution containing succinate (a four-carbon organic compound), phosphate ions, oxygen, and ADP yields metabolic activity, including the production of ATP and the uptake of oxygen. This pellet most likely contains
1. peroxisomes
2. mitochondria
3. lysosome
4. Golgi complex
5. endoplasmic reticulum
Answer:
2. Mitochondria
Explanation:
Mitochondria are one of the biggest organelles in the cell. They degrade organic molecules, releasing chemical energy from their bindings through a process that consumes oxygen: cellular respiration.
The released energy is stored as ATP through the cellular respiration process and then is used in other cellular activities.
Mitochondria are more grouped in areas or tissues with higher energetical requirements.
As cellular respiration characterizes by consuming oxygen and producing ATP, we can assume that the pellet mostly contains mitochondria.
By considering the components of the pellet, we can deduce that it most likely contains MITOCHONDRIA.
Cellular respiration is a series of reactions by which aerobic cells consume oxygen and nutrients (e.g. glucose) to produce ATP and carbon dioxide.
Cellular respiration has three sequential steps: glycolysis, the Krebs cycle and oxidative phosphorylation.
Mitochondria are the energy center of the eukaryotic cells. The Krebs cycle and oxidative phosphorylation occur in the mitochondria, while glycolysis occurs in the cytoplasm.
The Krebs cycle produces a four-carbon molecule known as succinate.
Adenosine triphosphate (ATP), the energy coin of the cell, is produced from ADP and phosphate (Pi) in the three stages of cellular respiration.
Finally, oxygen is consumed during oxidative phosphorylation.
In conclusion, by considering the components of the pellet, we can deduce that it most likely contains MITOCHONDRIA.
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if all land on Earth was still connected how would this affect biodiversity
Answers
Answer:
there would be little to no biodiversity because all the climates would be quite similar making everything in them similar as well.
Explanation:
i pretty much based my answer off of what we know pangea to have been like.
good luck :)
hopefully, this helps
have a great day !!
Factors that affect the diffusion
Answers
Answer:
Temperature is one factor that can affect the rate of diffusion. Diffusion occurs faster in warmer temperatures, and occurs slowly in cooler temperatures.
What would happen to the living things in the pond if you increase the concentration of salt?
Answers
Answer:
they would perish
Explanation:
Why large pieces of earths crust move around and bump into each other?
Answers
Answer:
The large pieces of Earth's crust lay on hot molten rock. These pieces are like a cracked shell and the heat of the hot molten rock causes them to move .
Explanation:
why is protein synthesis diffrent in prokaryotes and eukaryotes?
Answers
Answer:
In prokaryotes, translation occurs in the cytoplasm, where the large and small subunits of the ribosome bind to the mRNA. In eukaryotes, translation occurs in the cytosol or across the membrane of the endoplasmic reticulum where the entire ribosome/mRNA complex binds to the outer membrane of the rough endoplasmic reticulum and the new protein is synthesized and released into the ER; the newly created polypeptide can be stored inside the ER for future vesicle transport and secretion outside the cell, or immediately secreted.
Mystery Protist A
. Direct sequence data show significant sequence homology to Cyclotella, whose shells are often harvested to be used in industrial filtering.
. Morphological analysis: It is covered by a glassy shell and contains photosynthetic pigments. Reproductive cells have two flagella.
. Field observations: It was isolated from a marine water sample and has been observed gliding via microtubules that extend from its shell.
What is the protists?
Mystery Protist B
. Direct sequence data show significant homology with Giardia intestinalis, the parasite that can cause severe intestinal distress in humans.
· Morphological analysis: It is flagellated and has two nuclei and no cell wall.
· Field observations: It has been observed to reproduce asexually. It was isolated from the feces of cats.
What is the protist?
Mystery Protist C
· Direct sequence data show significant homology with dinoflagellates and apicomplexans.
· Morphological analysis: It has a swimming cell covered with cilia. It has two nuclei—a smaller one and a larger one.
· Field observations: It was isolated from a sample of goat feces and has been observed
reproducing sexually via conjugation, trading its smaller nuclei.
What is the protist?
Mystery Protist D
· Direct sequence data show high homology with Dictyostelium discoideum.
· Morphological analysis: It forms a gigantic, web-shaped cell with many nuclei, and it moves with amoeboid motion.
· Field observations: It was isolated from a forest soil sample.
What is the protist?
Mystery protist E
· Direct sequence data show significant homology to Porphyra, which is harvested for sushi in eastern Asia.
· Morphological analysis: It is red, has photosynthetic pigments, and has no flagella.
. Field observations: It was isolated from an ocean-water sample near a coral reef.
What is the protist?
Mystery Protist F
· Direct sequence data show significant homology to Pyrgo anomala, which contributes to chalk- and limestone-forming sediments.
· Morphological analysis: It has multiple nuclei. It has no cell wall but does have a shell made of calcium carbonate through which pseudopodia extend.
· Field observations: It was isolated from a marine-water sample, in which numerous individuals were found drifting passively in the water, feeding by extending pseudopodia out through openings in their shells. Numerous shells were collected from the ocean floor as well.
What is the protist?
Mystery Protist G
· Direct sequence data show significant homology with diplomonads and parabasalids.
· Morphological analysis: It does not have a cell wall but does have a network of protein molecules just under the plasma membrane that stiffen the cell. It is photosynthetic but produces an unusual carbohydrate unlike starch.
· Field observations: It was isolated from a freshwater sample. It is easy to observe under a light microscope because it actively swims toward light.
What is the protist?
Answers
Answer:
The correct answer would be -
A. diatoms
B. Toxoplasma gondii
C. Giardia lamblia
D. Pelomyxa
E. Rhodophyta - Corralinna
F. foraminiferan
G. euglena
Explanation:
1. Protist A
The given characteristics of this protist are similar to the diatoms as diatoms are the protists that are covered with silica-made glassy shells with photosynthetic pigment and the sperm is known to have flagella. found in marine water normally.
2. protists B
Toxoplasma gondii is a parasitic protist that is found in cat feces and homology with Giardia intestinalis and causes GI tract irritation or distress in humans. This parasitic protist have flagella and two nuclei in the cell.
3. protist C
Giardia lamblia is known to have two nuclei and perform conjugation and shows homology with dinoflagellates and apicomplexans. it is known to be present in the feces of the goat covered with cilia.
4. Protist D
Pelomyxa is found in moist soil and has an amoeba-like movement with web-like morphology. it is mold similar to Dictyostelium.
5. Protist E
Corralinna is a Rhodophyta it shows association with the coral reef, has no flagella and contains photosynthetic pigments. It is used in sushi making and is harvested largely for this purpose.
6. Protist F
Foraminiferan shows homology to Pyrgo anomala, which contributes to chalk- and limestone-forming sediments as it has a shell of calcium carbonate found in marine water with small pores on the shell from which the pseudopodia comes out.
7. Protist G
euglena found in freshwater and tends to swim towards the light. Euglena has no cell wall but the membrane has pellicle in it.
As mercury moves up the trophic levels in food chains, its concentration
Stays the same
Increases
Decreases
Is eliminated
Answers
Answer:
Increases
Explanation:
The concentration of mercury will increases as it moves up the food chain because of biomagnification. For example, a school of small fish consumes a minute amount of mercury each, but then a larger fish eats five of the smaller fish. After this the larger fish has more mercury in its system than one small fish because it ate five small fish (along with the mercury in each of the small fish). Now a seal eats multiple large fish. Overall, the seal has the highest mercury concentration out of all the animals mentioned.
Biomagnification is "the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed."
How can changes in a food chain be predicted?
Answers
Answer:
if an animal go extinct
Explanation:
when animal go extinct cause then the other animal dies that depends on that other animal
As rocks break apart, the overall surface area will
stay the same
increase
decrease
none of the above
Answers
!!!!!!WILL MARK BRAINLIEST !!!!
2. Below is an image of 2 imaginary organisms. Organism A lived hundreds of years ago while organism B is
alive today. Explain how organism A evolved into organism B, including what environmental pressure (i.e.
predator, habitat, competition, etc) you believe guidede natural selection process that worked on this
species.
0-Organism
A
Organism-B
Answer: Click or tap here to enter text.
Answers
Answer:
The new modification in Organism B is the tail.
Explanation:
This might indicate that the organism has to sprint in order to catch prey or to get away from predators. The organism is most likely not a prey, since it has sharp teeth, making it a carnivore. The tail helps in stabilizing the animal while running. The animal might have new threats that have developed over the years (like humans).
Viruses can perform which of the following processes?
Group of answer choices
Growth
Reproduction; but only in a host cell
Respiration
Movement
Answers
Answer:
Reproduction; but only in a host cell
help bonus points
real ans plzz
Answers
Answer:
B. A Temperature Of 37°
Explanation:
Hope It Helps U.
1. You are studying an intestinal cell that is actively making and secreting digestive enzymes . You know that the enzymes are proteinUsing your knowledge of cell structure and function describe where the enzymes are first made, where they are altered to an active form, how they are transported from one part of the cell to another, and how they are released from the cell Be sure that you mention all cell structures necessary for this activity and explain their functions You may use a diagrambut you also must write a discussion in full sentences
Answers
Answer and Explanation:
When mRNA leaves the nucleus and meets a free ribosome in the cytosol, it starts the protein building. Ribosomes read the mRNA code and begin protein synthesis by adding the correct amino acid using transference RNA.
Ribosomes attached to the RER membrane are responsible for synthesizing membrane proteins, exportation proteins, or enzymes.
The synthesis of proteins destined to become enzymes, membrane proteins, or exportation proteins starts in the cytoplasm with the production of a molecule portion known as a signal aminoacidic sequence. This signal sequence in the amino extreme of the synthesizing protein, and when it reaches a certain length, it meets the signal recognizing particle that leads the synthesizing protein and associated ribosome to the Rough endoplasmic reticulum, where it continues the protein building until finishing the elongation process. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen, suffering a few posterior steps related to conformation and structure, such as folding to become functional and the initial glycosylation stages.
The new proteins get packaged into vesicles that carry them to the Golgi complex where occurs the final association of carbohydrates and lipids with proteins, to originate glycoproteins and glycolipids.
Enzymes destined for exportation are packaged and sent from the Golgi complex to the cell membrane into vesicles. When the secretory vesicle reaches the target, its membrane fuses with the cell membrane, releasing its content to the extracellular space. This secreting process is known as exocytosis.
10. An animal has two eyes, six legs and no wings. Which group does the
animal belong to?
(1) bird
(3) insect
(2) fish
(4) mammal
Answers
Answer:
I think it's insect......
you are asked to prapare a drink that is a heterogeneous mixture.what would you prapare?
a.instant coffee and hot water
b.warm milk
c.soft drinks
d.orange juice with pulp
Answers
Most clouds form as ______ air rises in the atmosphere?
a. Cold
b. Dry
c. Polluted
d. Warm
e. All of the above
Answers
Answer:
E. hope it helpss......