PART II. Putting It All Together A. Review Questions Answer the following questi

Question

PART II. Putting It All Together A. Review Questions Answer the following questions using your lecture notes, your textbook, and/or your lab notes. 1. Circle the organelle that you would expect to be most abundant in each of the following cells a. A cell that produces an abundance of steroid hormones smooth endoplasmic reticulum; ribosome; rough endoplasmic reticulum b. A cell that synthesizes and secretes proteins Golgi apparatus; peroxisome; lysosome c. A cell that exhibits a high rate of metabolic activity Golgi apparatus; centriole; mitochondrion d. A cell that detoxifies alcohol peroxisome; rough endoplasmic reticulum; lysosome 2. Fill in the blanks as you describe how a pancreatic B-cell produces and secretes insulin. Insulin, a protein, is produced by ribosomes attached to the The insulin is then packaged by the Secretory vesicles pinch off, and the protein is released from the cell via a process called 3. In Lab Activity 3, the dialysis tubing containing 0.9% NaCl represented a "normal cell" and the dialysis tubing containing 20% NaCl represented a "defective cell." Each of these "cells" was placed in a 0.9% NaCl solution. Circle the correct term to describe the tonicity of the "cells" compared to the solution in which each was placed. a. The "normal cell" was (hypertonic, isotonic, hypotonic) compared to the solution in which it was placed. b. The "defective cell" was (hypertonic, isotonic, hypotonic) compared to the solution in which it was placed. 4. Complete the following tables to compare and contrast cell types. Characteristics unique to a cardiac muscle fiber Characteristics common to both a cardiac muscle fiber and an erythrocyte Characteristics unique to an erythrocyte Characteristics unique to a Characteristics common to both a neuron and a sperm cell Characteristics unique to a sperm cell

Explanation / Answer

Question 1a-

Smooth Endoplasmic reticulum is largely associated with the production of steroid hormones. These produce by fatty acids and SER is associated with fatty acid production.

Question 1b-

Golgi apparatus can synthesize and secrete proteins. It synthesizes through modification of primary structure of proteins. After that, golgi apparatus use vesicles to secrete proteins.

Question 1c-

Mitochondrion is a place for some most important metabolic processes. Krebs cycle and oxidative phosphorylation take place in mitochondria. Therefore, this organelle have high rate of metabolic activity.

Question 1d-

Here we will choose Peroxisome. However, Smooth ER also have good tendency to detoxify alcohol but Rough ER does not. Therefore, Peroxisome is the right answer.

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