The diagram shows the structure of glucose, a molecule that organisms make and use. The structural formula of glucose, C6H1206, shows a ring of 5 carbon atoms and 1 oxygen atom. 4 carbons in the ring are each bonded to an -H and an -OH group in addition to 2 neighboring atoms in the ring. The fifth carbon is bonded to a CH2OH group.

In glucose, each carbon forms how many bonds, and of what type?

A. one hydrogen bond
B. one hydroxyl bond
C. one hydrogen and three covalent bonds
D. four ionic bonds
E. four covalent bonds

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explanation:

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

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the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.