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Vanyuwa [196]
3 years ago
7

The human heart, composed of specialized muscle cells, beats to a specific rhythm. The heart cell rhythm partly depends on the o

pening and closing of series of gateways within the cell membrane, called ion channels. Some channels let certain ions flow out, others let different ions flow in. The same membrane system is at work in other cells, helping to regulate what stays and what leaves the cell. This cell membrane gateway system is specifically called the
Biology
2 answers:
Rama09 [41]3 years ago
8 0

Answer:

Sodium-potassium pump.

Explanation:

Sodium and potassium pump is a cell membrane gateway system, present in all cells of the body and responsible for an active transport process that regulates the entry and exit of sodium potassium ions into and out of the cell. This exit and entry of ions is performed to prevent a concentration gradient between the intracellular and extracellular medium. As already mentioned, sodium and potassium pumps refer to an active type of transport, that is, they occur with energy expenditure.

Svet_ta [14]3 years ago
6 0
Sodium potassium pump
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What is the term for a localized group of organisms belonging to the same species?
77julia77 [94]

Answer:

c. population

Explanation:

A localised group of organisms that belong to the same species is called Population. This can be a local population if the organisms stay at a particular place or a metapopulation if the organisms tend to move from one geographical location to another.

4 0
2 years ago
19. Identify the appropriate mixed number for the picture
irga5000 [103]

Answer:

C

Explanation:

you have 1 full square and 1/4 of the other square, making 1 1/4

3 0
3 years ago
A researcher discovers a new prokaryote that lives on the seafloor near hydrothermal vents. This organism reduces CO2 to form C6
expeople1 [14]

Answer:

D. Chemoautotrophs

Explanation:

Autotrophs in plain are organisms that synthesize their own food while hetrotrophs are organisms that do not synthesize their own food.

Chemotrophs (Chemoautotrophs and Chemohetrotrophs) are a group of organisms that obtain their energy through the oxidation of inorganic molecules, These organisms require carbon to survive and reproduce.

Chemoautotrophs are able to produce inorganic molecules by the fixation of CO2 from their immediate environment. The energy required for this process is got from Nitrogen, Magnesium, Sulphur etc.

Chemohetrotrophs are a class of chemotrophs that are unable to synthesize their own food but rather ingest complex molecules like carbohydrates from the environment.

Phototrophs are a group of organisms unlike chemotrophs that depend on the source of light or sunlight for synthesizing its food or organic molecules.

Photoautotrophs are basically photosynthetic plants which are able to carry out photosynthesis ie the conversion of CO2 and H2O to give Glucose and Oxygen in the presence of sunlight.

Photohetrotrophs are a class of organisms that do not synthesize their own food but rely on other organisms or already made organic molecules.

5 0
3 years ago
a typical eukaryotic cell has enough available atp to meet its needs for about 30 seconds. what is likely to happen to an indivi
gladu [14]

Eukaryotic cells rely on the molecular energy of ATP to sustain all of the reactions necessary to maintain life, in the absence of ATP, these reactions would come to a halt, and the cell would inevitably die.

ATP is a molecular compound that provides the energy needed by most cells to survive. ATP represents Adenosine triphosphate, which is an organic compound that provides energy to drive the essential metabolic reactions of living cells, such as:

  • Muscle contractions
  • Nerve impulses
  • Chemical synthesis
  • Nutrient absorbtion

In the situation in which a cell was to run out of ATP, these reactions would stop, given that they require ATP to function. This means that the cell would not be able to send or receive nerve signals, absorb the nutrients it needs, or even create necessary compounds such as proteins. The stoppage of these functions would lead to the death of the cell.

To learn more visit:

brainly.com/question/836188?referrer=searchResults

8 0
2 years ago
What ate the stages of meiosis of an animal cell
Gnesinka [82]

Answer:

Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase

Explanation:

4 0
3 years ago
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