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Nataly [62]
3 years ago
15

The change in electrical potential that occurs when an impulse passes through a nerve cell

Biology
1 answer:
Nadusha1986 [10]3 years ago
4 0

Answer:

The answer to this definition is: ACTION POTENTIAL

Explanation:

Action potential is a phenomenon in nervous system used to describe a change in electrical current that occurs when an impulse passes through a neuron or nerve cell. Action potential is induced when sodium (Na+) ions move from the extracellular environment into the intracellular environment.

Impulse travels across the axon of a neuron and thereby causes a difference in the electric potential i.e. - mv to + mv. This process, according to this question, whereby a change in electrical potential occurs due to the passage of an impulse through a nerve cell is termed ACTION POTENTIAL.

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Drag each label to the correct location on the chart.
garri49 [273]

Explanation:

Large chains of monomers form biological macromolecules which carry out many essential functions in the body these can include nucleic acids, carbohydrates, proteins and lipids. These are organic molecules, meaning they're ringed or long-chain Carbons bonded to the elements oxygen (O), hydrogen (H), nitrogen (N) and phosphorus (P).

  1. Proteins are structural support molecules comprised of long chains of amino acids joined via peptide (CONH) bonds; these are 20 specific units that are arranged into several macromolecules. Amino acids are absorbed through digestion and are incorporated into the body’s cells to make up organs muscles signal molecules and an alternative energy source.                                                       Basic makeup: C, H, O, N, S; polar C, O double bonds and N-H bonding                                                                             Monomer: amino acids                                                                                                      
  2. Similarly, the nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.                                                                             Basic makeup: C, H, O, P; they contain phosphate group 5 carbon sugar does nitrogen bases which may contain single to double bond ring.                                                     Monomer: nucleotides
  3. Carbohydrates function to supply energy and support molecules they consist of mainly sugars or starches in long chains and rings to form monosaccharide monomers. They include monosaccharides, disaccharides and polysaccharides which describes the type of bonding and the degree of complexity of the polymers.                             Basic makeup: C, H, O -with many polar OH groups             Monomer: monosaccharides                                                                                                          
  4. Lipids function as energy storage and chemical messengers, these include fats, saturated and unsaturated fatty acids with double bonds and steroids and waxes. However, lipids are comprised of fatty acids and glycerol; they do not contain a fixed set of monomers, and unlike the other biological macromolecules, they are not polymers. The arrangement of hydrophobic heads and hydrophobic fatty acid tails can give these non-polar macromolecules hydrophilic and hydrophobic properties.   Basic makeup: C, H, O; non polar- a triple condensation reaction produces the molecules from a triple hydroxyl (OH) alcohol bonded to three long-chain carboxylic acids.   Monomer: triacylglycerols + fatty acids

Learn more about lipid macromolecules at brainly.com/question/5094081

Learn more about  proteins and carbohydrates at brainly.com/question/10744528

#LearnWithBrainly

3 0
4 years ago
An individual with the genotype AaBb produces four different gametes in equal proportions. This is a demonstration of:_____.a. t
juin [17]

Answer: b. Mendel's law of independent assortment.

6 0
4 years ago
1 2 3 4 5 6
Lapatulllka [165]

Answer:

The smallest functional unit of matter: Atoms

An atom has 3 subatomic parts: Electrons, neutrons, and protons.

PROTONS carry a positive charge and are located in the: center of the nucleus in the atom.

Explanation:

7 0
3 years ago
Read 2 more answers
Fossilized stromatolites
Cerrena [4.2K]

Answer:

(B) resemble structures formed by bacterial communities that are found today in some shallow marine bays.

Explanation:

Extant stromatolites represent real "living fossils" for they are decendents of ancient forms that are associated with one of the first living forms on earth. Particularly, stromatolites are real bacteria communities where the autotrophic organism of the community are represented by cyanobacteria, which live along with heterotrophic bacteria. This clearly indicates that fossilized stromatolites points to bacteria (prokaryotes) as the first living things on earth (dated with not less than 3.5 billion year old)

Nowadays, stromatolites with cyanobacteria allows to reconstruct and understand fossilized forms. These current structures live in shallow marines ambients (e.g. Australia) but also in continental salt flats (e.g. Argentina) where few others bacteria can survive to these extreme conditions (high light exposure and salt concentration).

6 0
3 years ago
What makes possible the precise separation of dna during cell division
lidiya [134]

Answer: Chromosomes

Explanation: Chromosomes contain a cell's DNA. When a cell divides, the chromosomes must replicate. There are two types of cell division. Chromosomes undergo a different process depending on the type of cell division. It is important that chromosomes replicate properly so that each resulting cell has the correct amount of DNA after division.

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3 years ago
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