Health Study Assignment

Table of Contents

Introduction3

Discussion4

Part A4

Plasma Membrane5

Nucleus5

Nuclear Membrane5

Mitochondria6

Cytoplasm6

Tissue Types6

Part B12

References16

Introduction

This assignment consists of two parts. The first part is related to the structure of cell and its parts. In the first part, the following parts of the cell will be discussed:

Plasma Cell membrane

Nucleus

Nucleolus

Nuclear Membrane

Cytoplasm

Mitochondria

The explanation will include the basic structure and function of these components. The second part of the assignment will discuss negative feedback, homeostasis and the application of homeostasis to different human body systems.

Discussion

Part A

The first part is related to the structure of cell and its parts. In the first part, the following parts of the cell will be discussed:

Plasma Cell membrane

Nucleus

Nucleolus

Nuclear Membrane

Cytoplasm

Mitochondria

Figure 1: Diagram of a Cell

Plasma Membrane

Plasma cell membrane can be defined as a convenient maker of cell boundaries. A plasma membrane is the outer membrane of a cell and consists of two layers. The layers of plasma membrane and made of two phospholipids..

Nucleus

Nucleus is the central and most important part of an object. This part of the cell is the basis for its growth and activity. The nucleus of the cell is positively charged central core of an atom. Nucleolus is a non-membrane bound structure and it is the centre of the cell. The nucleolus consists of proteins as well as nucleic acids which are found within the nucleus of cells. The function of nucleolus is to transcribe RNA and assemble within the cell (Bell and Bell, 2006, pp. 78).

Nuclear Membrane

The nuclear membrane also plays a critical role in the functioning of a cell. The nuclear membrane of the cell is also known as nuclear envelope. This part of the cell is also known as nucleolemma or karyotheca. It is the double lipid membrane which is responsible for surrounding the genetic material. The nuclear membrane consists of two lipid layers known as the inner nuclear membrane and the outer nuclear membrane. The space between the membranes is known as perinuclear space.

Mitochondria

Mitochondria are the energy factors of the cell. The ATP or adenosine triphosphate is produced in the mitochondria using energy which is stored in the food.

Cytoplasm

Cytoplasm is the substance that fills the cell. It is jelly like material which is eighty percent water. Cytoplasm is a thick gel which is also referred to as cytosol.. The cytoplasm is found in the cell membrane.

Tissue Type

Cell detail

Cell structure related to its function

Tissue

function

Situated in

Image

Epithelial

Closely packed cells. Cells arranged in one or more layers.

The structure is flat resting on the basement membrane. The structure allows them to reduce friction and facilitate air flow.

The function is to cover surfaces for instance cavities and different organs. The vital functions include protection, secretion, absorption, excretion, and sensory reception

They are situated in the very outside layer of cavities or organs.

for the nutrients and oxygen it needs to maintain homeostasis. For this reason, epithelial tissue is usually very thin.,

Connective

Connective tissues consist of an indigenous population of cells. The cells are surrounded by fibers and ground substance.

The cells are found everywhere in the human body and ...