Answer:
Answer below
Explanation:
Cholesterol refers to a group of chemical compounds. A sterol is a kind of lipid, and cholesterol is one of them. All animal cells produce cholesterol, which is an important structural component of cell membranes. It is a yellowish crystalline solid when chemically separated.
a sterol-type molecule present in most human tissues. Cholesterol and its derivatives are key components of cell membranes and precursors of other steroid chemicals, but a high proportion of low-density lipoprotein in the blood (which delivers cholesterol to the tissues) is linked to a higher risk of coronary heart disease.
Cholesterol is a waxy, fat-like molecule found in all of your body's cells. Cholesterol is required by your body for the production of hormones, vitamin D, and chemicals that aid digestion. Your body produces all of the cholesterol you require.
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<span>Light goes through the cornea first. This is the clear covering over the pupil and iris. The cornea bends the light and forms an image. The light then passes through the pupil, which is the dark circle in the center of the iris, the colored part of the eye. The pupil controls the amount of light that enters the inner eye. Then the light goes to the lens of the eye. The lens is clear and flexible and focuses an upside-down image onto the retina. When the retina senses the image, it sends impulses to the optic nerve, and the optic nerves transmits them to areas in the brain that flip the image upright.</span>