The statement that would best explain why one red blood cell hemolyzes more quickly than another is if the cell that hemolyzes more quickly acquires NaCl at a faster rate.
Water moves by osmosis in and out of cells from the region of high water potential or low solute concentration to the region of low water potential or high solute concentration.
A cell with a higher solute concentration than the surrounding solution will keep acquiring water from its surrounding until the cell becomes turgid and bursts or lyses due to over-turgidity.
If the reverse occurs, such a cell will lose water and become flaccid.
Thus, if a red blood cell acquires NaCl, a solute, at a faster rate, such a cell will also acquire water and become turgid/lyses at a faster rate.
More on hemolysis can be found here: brainly.com/question/6598052
5. It is difficult to diagnose genetic conditions because they are rarely seen and once problems start presenting themselves not only would a diagnosis need to be made. But to prove it you would have to take blood from both parents to see why they together could produce genetic conditions.
6) Down syndrome occurs when you get a smaller number of chromosomes you are supposed to inherit from each parent during conception.
7) a silent mutation is a change in DNA but does not changes the encoded and has no phenotypic effect therefore the genetic sequence is not changed
Answer:
The charges inside and outside of the neuron before receiving a stimulus are negative and positive, respectively, which corresponds to the transmembrane rest potential.
Explanation:
Neuron is the specialized cell of the nervous system in charge of transmitting electrical impulses. The generation of a nerve impulse in the form of an electric current is due to a change in the transmembrane potential.
<u>Outside the neuron cell, electrical charges are predominantly positive, and the ion with the highest concentration is sodium. In the intracellular space, a great quantity of proteins provide negative charge, and there is a predominance of potassium ions</u>. Under these conditions, the ionic channels are closed.
For this reason, a neuron at rest, before receiving a stimulus, presents positive charges on the outside and negative charges on the inside, and the membrane potential in this condition is estimated at a value of -65 mV.
Once a stimulus is produced, the ionic channels open and Na+ ions enter the cytoplasm, exchanging them for K+, which implies a change in the membrane potential which, on reaching the threshold, produces an action potential and the nerve impulse is produced.
It is different types of species about .biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept
One of the differences is
dna is double stranded
rna is single stranded
