to prevent acid from seeping in the stomach, the stomach cells join one another via
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The stomach and the cells that comprise it have a three-part protection system to protect from the acid contained in the stomach, comprised mostly of compact cell unions.
The stomach is one of the main digestive tract organs. Its job is to break down the food we ingest and pass it along to the rest of the digestive tract. To perform this action, the stomach secrets hydrochloric acid. However, the stomach itself is not damaged by this acid due to a three-part protective system comprised of:
Tight epithelial cell liningMucose BarrierBicarbonate secretionThe cells present in the epithelial lining of the stomach join one another via compact cell unions to form a closed barrier which is then covered by a thick Mucose barrier. This along with the secretion of bicarbonate which works to break up the acids present in the stomach and ingested, form a sealed barrier that protects the stomach from harm.
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Related Questions
how is a microscopes total magnification calculated
Answers
Answer:
rtr greggryrwufwffvtyfjggakakakakakrfckvwtnhurtehjnsgberwghebhj
Explanation:
Which of the following contain(s) oxygenated blood?
*its Arterioles edgBz21 pls pst
Answers
Answer:
c. Arterioles is correct
Explanation:
PLSS HELP I WILL GIVE U 50 POINTS i cant give image tho but her is a description:Images shows a lake labeled carbonates in water, a cow labeled animal respiration, a tree labeled photosynthesis, a factory labeled factory emissions, the sun labeled sunlight, a cloud labeled carbon dioxide in atmosphere, another tree labeled plant respiration, an arrow from organic carbon to dead organism, and fossils and fossil fuels. Arrows are labeled as follows: A from the sunlight to photosynthesis, B from carbon dioxide in atmosphere to photosynthesis, C from factory emissions to carbon dioxide in atmosphere, D from carbon dioxide in atmosphere to carbonates in water, E from dead organisms to fossils and fossil fuels, and F from plant respiration to the sky.
now the question: Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected? --
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c and e....... take this answer with a grain of salt!
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
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Explanation:
OK, first of all, let me explain to you, what is a scientific theory...
A scientific theory is an explanation and demonstration of an aspect that exists in the natural world or universe that has been verified by the scientific way through repeated testing of the experiment with accepted protocols of observation, measurements and evaluation of results.
A scientific law is generated in the same procedure as above, but it can predict a wide range of natural phenomena.
Ex-: you are throwing a basketball from the top of a dam to the river. according to physics on earth, it should fall down. it's a law. no matter where you are, that basketball touches down the ground if there's any gravitational force.
But cell theory cannot be assumed to be common throughout the entire universe. Because we may find some other form of life that has some other plans. viruses are not obeying this theory.
*In a nutshell, a law is stable from its' origin. most of the time, it won't change. but theories will change with updating facts of science.
put the following actions in order: DNA replication, cell grows. cell f=division, cell prepares for mitosis
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Answer:
Cell grows, DNA replicatio, Cell prepared for mitosis, Cell division.
Which process must occur for a muscle to be able to relax?
O A The amount of ATP in the neuromuscular junction must increase.
O B. Myosin and actin must attach to each other.
O C. A nerve must initiate an action potential in the muscle fiber.
O D. The concentration of calcium in the myJfibril must decrease.
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Natural laws are:
a. a process of discovering the answers to questions.
b. a preliminary explanation.
c.rules that explain how all things in the entire universe always behave.
d. a form of inquiry.
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Answer:
bxhxnxvjxxvhxjxjxbxbxhx xhxbxbxjx
_____ splits water into 1/2 O2, H , and e- . A structure of a thylakoid. Letters from A to E indicate definite structures. Letter A indicates the first protein complex located in the thylakoid membrane. Letter B indicates a multiprotein complex between two complexes A and C. Letter C marks the second integral membrane protein complex. Letter D marks a substance inside the thylakoid. Letter E indicates a flask-shaped structure in the membrane of the thylakoid, which has a canal through the membrane. D B C A E
Answers
The luminous reactions begin when light reaches photosystem II. The water molecules provide electrons to the photosystem, releasing oxygen and protons. The letter A represents photosystem II that splits water.
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1. Luminous energy is trapped by chlorophyll in Photosystem II.
2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
4. When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules.
5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
6. When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II.
7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
8. The released energy is used to produce ATP molecules.
9. Hydrogen ions go back from the stroma to the thylakoid compartment.
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the ________ response cycle includes four phases including excitement, plateau, orgasm, and resolution.
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Starts with an S ends with an L.
Rhymes with usual (Big Brain thinking)
when does an electron emit energy in the form of a photon?
Answers
Answer:
When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.
What four substances are recycled during photosynthesis and respiration
Answers
Answer:
Carbon Dioxide, Glucose, Water, and Oxygen
Explanation:
Photosynthesis occurs in autotrophic green plants, some bacteria and algae. It uses pigments to absorb light energy to power reactions that make carbohydrates. Respiration is the reverse of photosynthesis because it breaks down carbohydrates to release ATP.
You came in luck! I just learned about this yesterday!! Hopefully this helps you!! Brainliest?? Anyways have a great day! :))
Write one scientific question about the organism in the photo
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Answer:
What's the scientific name of sunflower?
From what did it evolve from?
The tail of a comet always points towards the sun true or false
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This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln?
a. UUC-UCU-CAA
b. AAG-AGA-GTT
c. TTC-TCT-CAA
d. AAG-AGA-GUU
please help!
Answers
The Nucleotide sequence for Phe-Ser-Gln is UUC-UCU-CAA. The nucleic acid sequence is also known as the main structure.
What is nucleotide sequence?The order of the nucleotides in a DNA or RNA molecule is denoted by a string of letters called a nucleic acid sequence (GACU or GACT). Sequences are often presented according to the convention from the 5' end to the 3' end.
The covalent structure of the entire molecule can be defined by specifying the sequence because nucleic acids are typically linear (unbranched) polymers. The nucleic acid sequence is also known as the main structure because of this.
Therefore, The Nucleotide sequence for Phe-Ser-Gln is UUC-UCU-CAA. The nucleic acid sequence is also known as the main structure.
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in eukaryotic cells, which organelle produces the majority of the atp for the cell?
Answers
Answer:
mitochondrion
Explanation:
This picture shows part of a mangrove swamp in the Florida Everglades. Mangroves are trees that can live in fresh water or salt water. This means that the Everglades is most likely
Answers
Answer:
The answer is B (An estuary)
Explanation
The picture depicts a mangrove swamp within Florida Everglades. This means that the Everglades is most likely Estuary due to the presence of mangrove trees thriving in both freshwater and saltwater environments. The correct option is (B).
The picture shows a mangrove swamp in a section of the Florida Everglades. Mangroves are unusual trees that have the amazing capacity to thrive in both freshwater and saltwater environments. Estuaries, where rivers meet the sea and create a setting with variable salt levels, are notable for this adaptability.
The Florida Everglades is a perfect example of an estuary environment since the coexistence of mangroves in this ecosystem implies the presence of brackish water, which is a mixture of freshwater and seawater. Estuaries are key for maintaining a variety of wildlife and offering crucial ecological functions.
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The given question is incomplete, complete question is- "This means that the Everglades is most likely
(A) a lake.
(B) an estuary.
(C) a river.
(D) deep ocean"
what is the source of oxygen produced during photosynthesis?
Answers
Answer:
the air
Explanation:
Answer:
Water
(correct me if I'm wrong)
What’s the answer to these questions
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ray4918 here to help ..
The image shows one muscle cell. Please select the correct term for the stricter labeled b.
1. troponin
2. myoglobin
3. actin
4. Myosin
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Answer:
actin
because of many becauses
What characteristic of water causes it to display adhesion cohesion high specific heat capillary action
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I think the answer should be the fact that water is a polar molecule.
This means it will attract other molecules which are polar (adhesion), including itself (cohesion).
I'm not sure about the last part of the question (high specific heat capillary action, the wording is a little confusing), but I think the reason why water has a high specific heat is the hydrogen bonds. Hydrogen bonding is the strongest kind of bond you can have in a molecule, so it would be harder to break those bonds, even with high heat.
Answer:
The polarity of water
If we check the Petri dish and food coloring in a few minutes, will all of the food coloring remain in the filter paper disk? What do you think will happen?
Answers
What Type: of cells go through the special cell division process of meiosis?
1. gametes
2. lymphocytes
3. neurons
4. hepatocytes
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The special cell division process of meiosis is undergone by gametes, which are reproductive cells responsible for sexual reproduction. Thus, correct answer is option (1).
Meiosis is a special type of cell division that only takes place in organisms that reproduce sexually. , which are sex cells like eggs and sperm, are produced as Gametesa result of two sequential divisions. Gametes have half as many chromosomes as parent cells, ensuring that the offspring they create during fertilization will have the right number of chromosomes.
Gametes are created by meiosis to retain genetic variation in the population, as opposed to somatic cells, which go through mitosis to produce identical duplicates. Hepatocytes, lymphocytes, and neurons all go through mitosis or perform certain bodily roles; none of these cells go through meiosis.
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which type of blood vessel holds the greatest volume of blood?
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Is this poison sumac?
Answers
Answer:
Definitely not
Explanation:
Usually they have clusters of small green or white berries on them, as well as smaller, glossier looking leaves.
An undersea volcano erupts, creating a new island in the Gulf of Mexico. Life slowly starts to appear on the island. What would probably be the first species to take hold and survive? Pls, explain your answer.
A. ferns C. lichens
b. finches d. grasses
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Have a nice day! Please mark brainliest! :)
Answer:
Lichens
Explanation:
Lichens are very mere grasses
They need very less oxygen
They can adopt in any situation just they need drops of water .
So they will start to hold and survive at first
Which organism would most likely be found in the benthic zone?
A. crab
B. shark
C. whale
D. zooplankton
Answers
Answer:
Crab
Explanation:
Life on the Arctic Deep Sea Floor. Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.
what are most enzymes in living things made up of?
Answers
Answer:
proteins
Explanation:
Enzymes are biological catalysts that speed up the rate of biochemical reactions in living cells. Most enzymes are made up of proteins.
Kangaroo rats are rodents that eat seeds and nuts and burrow in the ground to keep cool. These animals do not need to drink water because they get all the water they need from their food.
Where are these organisms adapted to live?
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Answer:
the desert because it has scarce water and they would get the water from the plants and insects they eat.
Explanation:
in gene expression, which enzyme is responsible for transcribing the dna sequence into mrna by adding complementary rna nucleotides?
Answers
Answer:
RNA polymerase II
which rna type is the most abundant in mammalian cells?