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alexira [117]
3 years ago
9

The process of cell modification from a generalized cell to one that performs a specific task is known as:

Biology
1 answer:
Mekhanik [1.2K]3 years ago
7 0
The answer is B.A stem cell.
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Why is cellular respiration important? Multiple Choice It produces oxygen gas, which is essential to cell functions. It breaks d
trapecia [35]

Answer: (c) It generates ATP, which cells can use to do work.

(d) It generates chemical gradients, which have potential energy.

Explanation:

The overall process of Cellular respiration is the aerobic break down of organic compounds (food) with the release of CO2, water and energy in form of ATP which drives most cellular work.

Organic compound + oxygen --------> carbon dioxide + water + energy (ATP + heat)

In cellular respiration during the break down of food in glycolysis and the citric acid cycle, chemical energy (NADH and FADH) are extracted from each cellular process and transported to the electron transport chain built in the inner mitochondrial membrane. The chemical energy harvested from food is transformed into a proton-motive force, a gradient of H+ across the membrane. When this H+ election fall from their gradient via ATP synthase, Chemiosmosis couples this proton motive force to phosphorylate ADP to form ATP.

5 0
3 years ago
The most important factor in decreasing the intracellular concentration of calcium ion after contraction is
Veseljchak [2.6K]

Answer:

Active transport of calcium into the sarcoplasmic reticulum.

Explanation:

  • The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+)
  • In response to an action potential traveling along the t tubule, voltage-sensitive proteins change shape, opening calcium channels in the adjacent terminal cisterns of the sarcoplasmic reticulum.
8 0
2 years ago
For scanning a slide ___ power is usually used
Dmitrij [34]
Low power is usually used for scanning a slide. This lets the person see more of the slide at once.
4 0
3 years ago
Read 2 more answers
6. A substance that enters Earth's cycles and does harm to living things is
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C Pollutant just like emissions or oil spills
3 0
3 years ago
Science <br><br> Myth: Tigers and goldfish are not related.
DerKrebs [107]

Answer:

Although they are not closely related, as vertebrate animals, they share some characteristics and belong to the same Phylum.

Explanation:

Tigers and goldfish belong to different Classes. Tigers (<em>Panthera tigris</em>) belong to the Class Mammalia, while goldfish (<em>Carassius auratus</em>) belong to the Class Actinopterygii. However, they both belong to the Phylum Chordata.

Chordates share particular characteristics, such as a dorsal neural tube, a notochord, a bilateral symmetry, circulatory system, amongst other features. They are divided into different groups of vertebrates as well: mammals, birds, amphibians, reptiles, and fish. And, according to evolutionionary studies, over 300 million years ago, the first vertebrates that lived on land (amphibians) evolved from a lobe-finned fish species, which eventually led to the evolution of mammals that adapted to terrestrial environments.

Therefore, even though goldfish and tigers may seem completely different, they share similar characteristics. Plus, they are vertebrates that belong to the same phylum.

7 0
3 years ago
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