Which of the following activities is not carried out by every cell in the body.

Question

Which of the following activities is not carried out by every cell in the body. A. Obtaining oxygen and nutrients B. Performing chemical reactions to acquire energy for the cell's use C. Eliminating wastes D. Reproducing E. Controlling exchange of materials between the cell and the external environment ___ controls are inherent to an organ, while ___ controls are regulatory mechanisms initiated outside an organ that later affect the activity of said organ. A. Positive; Negative B. Negative; Positive C. Extrinsic; Intrinsic D. Intrinsic; Extrinsic E. Homeostatic; Regulatory The endocrine system regulates the response to stress by means of the ___. a. Thyroid b) Adrenal glands C. Pancreas d. Posterior pituitary e. Hypothalamus An autoimmune disease appears to destroy the myelin on motor axons. You would expect to observe the defect in the ___. a. Dorsal Column b. Ventral horn of the spinal cord c. Ventral spinothalamic tract d. Descending spinal tracts e. Lateral spinothalamic tract

Explanation / Answer

2) Answer : D : Intrinsic ; Extrinsic

Intrinsic controls are specific to a particular organ to maintain its homeostasis or to maintain its specific function. But extrinsic control come from master of all the organs. For example endocrine system control various organs of the body by its hormones.

4) Answer : A : Dorsal column

Dorsal, ventral and lateral column forms white matter which is composed of myelin.

Posterior, ventral and lateral horn forms grey matter without myelin.

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