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Shalnov [3]
3 years ago
7

Complete the statement to describe the calcium concentration that must be maintained in human body cells.

Biology
2 answers:
Lilit [14]3 years ago
6 0

Answer:

outside and inside

Explanation:

Complete the statement to describe the calcium concentration that must be maintained in human body cells.

The calcium concentration must be greater  

outside

the cell than  

inside

the cell.

andrezito [222]3 years ago
4 0

Answer:

The calcium concentration must be greater OUTSIDE

the cell than INSIDE the cell.

Explanation:

Calcium has a vital role in the body, it is necessary for:

  • exocytosis
  • muscle contraction
  • normal excitability of neurons
  • blood coagulation
  • building and maintaining bones and teeth
  • enzymatic activity
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Ostrovityanka [42]

The movement of food through the esophagus  is called peristalsis.

<h3>What is the buccal cavity?</h3>

The mouth is what we generally call the buccal cavity. It is an opening that contains the teeth and the tongue. The tongue plays the important role of serving as the organ of taste while the teeth serves to marsh food. It is the white strong structure that occurs in the mouth that enables is to masticate our food. Also in the mouth we have the salivary gland which plays the role of secreting the saliva and we know that the saliva contains from enzymes that makes it possible for the digestion of food to commence at the moth. It the follows that the buccal cavity is made up of the teeth, tongue and salivary glands.

Food moves into the stomach via the esophagus. Thus movement is slow and is aided by the muscles that line the gastro intestinal tract. As such, movement of food through the esophagus  is called peristalsis.

Learn more about peristalsis:brainly.com/question/15265456

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2 years ago
which two cell parts are most likely found in both types of cell? a.cell wall and cell membrane b.lysosome and vacuole c.vacuole
Ainat [17]
Cell wall because their has to be something protecting it.
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2 years ago
A 2-year-old swallowed watch batteries. Following ingestion, kidney function was impaired, and the heart began to fail. Which of
kvv77 [185]

Answer:

Coagulative necrosis

Explanation:

  • When cell death occurs due to ischemia or infarction then this is termed as Coagulative necrosis.
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  • When a two year old swallows watch batteries then these batteries becomes trapped in the digestive system and inside the digestive tract , the positive and negative terminals of the battery gets bridged by the mucosa leading to the production of the electrical current and increase in the pH of the mucosa.
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3 years ago
There are several different kinds of aquatic ecosystems. Bogs get their water from precipitation, so they don't have many Fill i
Ratling [72]
  1. Bogs get their water from precipitation, so they don't have many <u>nutrients</u>.
  2. Marsh plants are adapted to waterlogged <u>soil</u>
  3. Swamps have <u>plants like trees and shrubs</u>.
  4. Rivers always have flowing currents and pick up <u>sediment</u> as they flow.
  5. Lakes are bodies of water on land.  
  6. Wetlands act as filters for nutrients and pollutants dissolved in the water.
  7. Estuaries are wetland regions where freshwater rivers mix with ocean water.

Explanation:

A wetland is a biome which has both water and land that are intermixed in various ways. According to the type of the wetland, the ecosystem differs.

Bogs: Wetland with water from precipitation and no inflow or outflow of surface or ground water.  

Soil: Acidic, infertile with less nutrient content

Vegetation: Acid-loving plants

Swamps: Forest wetlands near rivers and lakes.

Soil: well draining, mineral soil

Vegetation: Trees and bushes. Swamps are classified according to the vegetation, like coniferous swamp, hardwood swamp, shrub swamp etc

Marsh: Wetlands mostly inundated with water leading to waterlogged soil  

Soil: Organic and mineral soil

Vegetation: Hydrophytic plants adapted to waterlogged soil

Estuaries: Wetland regions enclosed by land one side where fresh water mixes with saline ocean water.  

Soil: Saline alkaline soil

Vegetation: Mangrove trees

Rivers and lakes are water bodies that form a part of wetlands.  

Rivers are flowing water bodies which flows through water current and picks up sediments as it flows.

Lakes are stationary water bodies that are enclosed by land mass on all its sides.

The wetlands act as a natural filter and receive all the sediments, pollutants etc which are dissolved in water and carried by the rivers and other water sources.

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Which of the following statements describes a central role that ATP plays in cellular metabolism?
DaniilM [7]

Answer: The correct answer is D. ATP provides energy coupling between exergonic and endergonic reactions.

ATP hydrolysis is an exergonic reaction, as a large amount of energy is released when this molecule is hydrolyzed. ATP is converted into ADP ( adenosine diphosphate)  and inorganic phosphate. The energy released in this reaction is utilized by the endergonic reactions ( which require energy) such as photosynthesis.

Thus, the central role that ATP in cellular metabolism is that it provides energy coupling between exergonic and endergonic reactions.

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