The glycocalyx is present in the human vascular and digestive system. Endothelial cells lining blood vessels have a glycocalyx to protect them from the sheer stress of blood flow, as well as to aid in cell attachment that helps the immune system and blood clotting
Answer:
Questions, hypotheses, and ideas should be tested against observable evidence.
Explanation:
Skepticism is extremely important, if not fundamental, in all areas of Science. This attitude is based on the belief that all questions, hypotheses, and ideas should be tested against observable evidence. Moreover, it allows scientists to <u>question and think thoroughly about all possibilities behind a phenomenon, instead of just 'believing' any observation or vague and non-supported reason that explains it.</u>
In addition, it allows researchers to investigate all possibilities and test numerous methodologies to be certain and gather enough evidence to explain this certain phenomenon.
Answer:
The elongation of the cell takes place in telophase, and due to elongation of the microtubules, the organelles and the cytoplasm get ready to move in a new cell formed by the process of cytokinesis.
a. The given statement is false, as the force of contraction is produced by microtubule and actin bundles that produce the contractile ring.
b. The given statement is true, as, with the constriction of the contractile ring, the thickness also increases so that the volume remains the same.
c. The given statement is false, as the midbody gets generated from bipolar microtubule array.
d. The given statement is false, as local activation of Rho GTPase stimulates the alignment and contraction of the contractile ring.
The true answer of your question is :
OH : HYDROXYL GROUP
NH2 : AMINO GROUP
CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )
COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.
I hope you’ll understand everything, anyway if not i’m always here to help. ♥️