Which of the Following Statements Is/are Incorrect

question 9

Multiple Choice

Which of the following statements is/are incorrect?
i.Chemists use "tagged" atoms as radioactive tracers to study the series of individual steps in complicated reactions
ii.A few dozen uses for synthetic radioactive nuclei are known today
iii.Artificial radioactive nuclei cannot be used in food preservation because the food becomes radioactive

• A)i only
• B)iii only
• C)i and ii
• D)ii and iii
• E)i, ii, and iii

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Definitions:

Rods

Photoreceptor cells in the retina of the eye, highly sensitive to light, and responsible for vision under low light conditions.

Optic Disc

The point of exit for ganglion cell axons leaving the eye. Because there are no rods or cones overlying the optic disc, it creates a blind spot in visual fields.

Sensory Retina

The part of the retina that contains photoreceptor cells (rods and cones) responsible for converting light into electrical signals for vision.

Macula Lutea

A region in the retina responsible for high-acuity vision where a high concentration of photoreceptor cells are located.