Predict which organelles are likely to be abundant in cells such as fibroblasts that actively produce and secrete proteins. (Connects to Chapter 3)

Each of the following statements is false. Correct each to make a true statement.

a. Mucous membranes are composed of mesothelium and the underlying loose connective tissue.

Vitamin C is required for synthesis of collagen. Predict the effect that a vitamin C deficiency (a disease called scurvy) would have on bone tissue, dense regular collagenous connective tissue, dense irregular connective tissue, and cartilage. What symptoms would you expect to see from this disease?

In the disease scleroderma, excessive collagen, glycosaminoglycans, and glycoproteins are produced and deposited in tissues throughout the body. Predict the effects of this disease.

In the disease pulmonary fibrosis, elastic fibers of the lung are destroyed and replaced with collagen fibers. Predict the effect this would have on breathing.