Question

which of the following is true about the mode of secretion of exocrine glands? apocrine cells are destroyed, then replaced after secretion. holocrine cells are slightly damaged by the secretory process, but repair themselves. merocrine glands are not altered by the secretory process. these glands are ductless. question 14 0.5 points cartilage tissue tends to heal less rapidly than bone tissue. true false question 15 0.5 points which statement best describes connective tissue? usually contains a large amount of matrix usually lines a body cavity always arranged in a single layer of cells primarily concerned with secretion

Explanation:

Question (about exocrine glands' secretion mode)

• For "Apocrine cells are destroyed, then replaced after secretion": Apocrine secretion involves the release of secretory vesicles with some cytoplasm, and cells are not destroyed. So this is false.
• For "Holocrine cells are slightly damaged by the secretory process, but repair themselves": Holocrine secretion involves the entire cell being destroyed (the cell ruptures to release secretion), so this is false.
• For "Merocrine glands are not altered by the secretory process": Merocrine (eccrine) secretion is via exocytosis, and the gland cells remain intact. This is true.
• For "These glands are ductless": Exocrine glands have ducts (endocrine are ductless), so this is false.

Cartilage has a poor blood supply, while bone has a good blood supply and more regenerative cells. So cartilage heals more slowly than bone. Thus the statement is true.

• "usually contains a large amount of matrix": Connective tissue has cells scattered in a large extracellular matrix (e.g., bone matrix, cartilage matrix, connective tissue proper matrix), this is correct.
• "usually lines a body cavity": Epithelial tissue lines body cavities, not connective. False.
• "always arranged in a single layer of cells": Connective tissue cells are not arranged in layers like epithelial; they are scattered. False.
• "primarily concerned with secretion": Epithelial (glandular) or endocrine/ exocrine glands (which can be epithelial) are for secretion; connective tissue's main roles are support, binding, etc. False.

Answer:

Merocrine glands are not altered by the secretory process.

Question 14 (Cartilage vs Bone healing)