EBK HUMAN ANATOMY
EBK HUMAN ANATOMY
9th Edition
ISBN: 9780135241752
Author: Marieb
Publisher: PEARSON CO
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Chapter 2, Problem 1CYU

What are the three general regions of a cell?

Expert Solution & Answer
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Summary Introduction

To review:

The three general regions of a cell.

Introduction:

The smallest living unit of the body is known as cell. In order to sustain life, each cell performs a necessary function. The functions of cells are carried out by various subunits of the cell. These subunits are known as organelles. The examples of organelles include ribosomes, lysosomes, mitochondria and so on.

Explanation of Solution

The three major regions of the cell are plasma membrane, cytoplasm, and nucleus. The plasma membrane is also referred to as an outer boundary of the cell. It is a double membrane layer of lipids that are embedded with protein. It functions as an external cell barrier and helps in transporting only specific substances in and out of the cell.

The cytoplasm is known as a cellular region that is present between the plasma membrane and nuclear membrane. It comprises of fluid cytosol that contains organelles, inclusions, and dissolved solutes. The cytoplasm surrounds the nucleus and makes up the bulk portion of the cell. The functions of the cytoplasm include providing shape to the cell and keeping the organelles in their position.

The nucleus is known to be surrounded by a nuclear envelope. It comprises of chromatin, fluid nucleoplasm, and nuclei. It is responsible for controlling the activities of the cell. The genetic content is present inside the nucleus. Only eukaryotic cells possess a nucleus. This cellular structure also provides instructions in order to mediate the protein synthesis.

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Chapter 2 Solutions

EBK HUMAN ANATOMY

Ch. 2 - How does the appearance of extended chromatin...Ch. 2 - In which phase of the cell life cycle does the...Ch. 2 - Prob. 13CYUCh. 2 - Which cellular structures would be abundant in...Ch. 2 - Which organelles would be abundant in cells that...Ch. 2 - According to which aging theory presented here can...Ch. 2 - The endocytotic process in which particulate...Ch. 2 - The nuclear substance composed of histone proteins...Ch. 2 - Final preparations for cell division are made...Ch. 2 - Prob. 4RQCh. 2 - Identify the cell structure or organelle described...Ch. 2 - Prob. 6RQCh. 2 - The trans face of the Golgi apparatus (a) is its...Ch. 2 - Prob. 8RQCh. 2 - Name the appropriate stage of mitosis (prophase,...Ch. 2 - Name the cytoskeletal element (actin...Ch. 2 - Prob. 11RQCh. 2 - Which of these processes involves specific...Ch. 2 - List all the cytoplasmic organelles that are...Ch. 2 - Martin missed a point on his anatomy test because...Ch. 2 - In this chapter, we claimed that mitochondria are...Ch. 2 - Define chromosome, then compare the arrangement of...Ch. 2 - Prob. 17RQCh. 2 - Use the analogy of the cell as a manufacturing...Ch. 2 - Prob. 1CRCAQCh. 2 - Kareem had a nervous habit of chewing on the inner...Ch. 2 - The normal function of one tumor-suppressor gene...Ch. 2 - In their anatomy labs, many students are exposed...Ch. 2 - The sedative phenobarbital is a lipid-soluble...Ch. 2 - The drug vinblastine is used in cancer therapy to...Ch. 2 - Use the word roots listed at the start of Chapter...
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