the four molecules of life are proteins, carbohydrates, lipids and nucleic acids. Each of the four groups is vital for every single organism on Earth. Without any of these four molecules, a cell and organism would not be able to live. All of the four molecules of life are important either structurally or functionally for cells and, in most cases, they are important in both ways.
this is what i have about this
Answer:
False!!!
Explanation:
This is one of the great misconceptions about evolution. Individuals DO NOT evolve! The smallest unit of evolution is a population.
Evolution is the change in gene frequency over time. Think about it... do your genes change over your lifetime? Nope. You are stuck with the genes you received from your parents.
HOWEVER... the gene frequency in a population is able to change and shift. In one generation there may be lots of individuals with brown hair, but years later there may be no more brunettes because brown hair wasn't considered as attractive as blonde hair (I'm a brunette, so I can say that hehe :) In this case, the frequency of the brown hair gene changed.
Each of the individuals' genes stayed the same, but over the years the population's gene frequencies change and that is evolution.
Answer:
On the exterior of the cell.
Explanation:
The black spots as mentioned in the given case would appear on the exterior of the cell after three hours, which suggests that the proteins or the enzymes had been discharged from the pancreatic cell. The mentioned method of labeling and then chasing the component is known as a pulse-chase experiment.
In this experiment, the labeled compounds are used to follow the dynamics of cellular pathways and procedures. The molecules in a cell get produced and degraded spontaneously at various rates. These changes in the localization of the molecule and its expression levels with time can be determined by exposing or pulsing cells to a labeled compound.
After this the cells are exposed sequentially to the same compound unlabeled, the process is termed as the chase. The compounds are generally labeled with fluorescent dyes or radioisotopes.
Neurotransmitters. With the regard to the process of the neural transmission, a refractory period refers to the time in interval in which. the Positively charged sodium ions are to pumped back to outside a neural membrane.
Neurotransmitters are the chemical messengers that your body can't function without it. Their job is to carry out chemical signals (“messages”) from one of the neuron (nerve cell) to the next target cell. The next target of the cell can be another nerve cell, a muscle cell or the gland.
Fortunately, the seven “small molecule” are neurotransmitters (acetylcholine, dopamine, the gamma-aminobutyric acid (GABA), or glutamate, histamine, norepinephrine, and the serotonin) do the majority of the work.
To know more about Neurotransmitters visit:
brainly.com/question/28101943
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