properties of Life

Instructions:-

Integrate by discussion the properties of life, basic chemical terminology, and molecules and compounds of a cell necessary for life. Include the basic anatomy and physiology of a cell and describe how cell respiration, photosynthesis, and cell reproduction occur in a succinct manner. Include a brief discussion about Mendel’s Laws and an overview of DNA structure and function. Conclude with a discussion of cancer and the mechanisms of gene control.

Solution

Properties of Life Assignment Help.

Sample 1

The basic structure of life can be traced to cells, which makes up all living organisms. Cells reproduce and therefore all existing cells arise from previous cells. Cells make up different parts of the human body, plants, fungi and essentially every living thing. There are different types of cells including eukaryotic cells and prokaryotic cells. Eukaryotic cells can be further distinguished as animal cells or plant cells. Eukaryotic cells differ from the more primitive prokaryotic cells because of the presence of a membranous organelles in the cytoplasm, a nuclear membrane and chromosomal proteins. The nucleus in the eukaryotic cell holds the majority of the genetic material and controls all activity within the cell, analogous to a blueprint. DNA replication and transcription occurs in the nucleus. Translation of the mRNA on the other hand occurs in ribosomes, which carry out protein synthesis for the cell. Ribosomes are essential for protein assembly, including enzymes which are important for many cellular functions. There is also the endoplasmic reticulum, which has two types: smooth and rough. Smooth endoplasmic reticulum is responsible for lipid synthesis and processing metabolic processes such as drug detoxification and lacks ribosomes. The rough endoplasmic reticulum is responsible for protein synthesis because of the presence of ribosomes. Cell membranes are also important and cell walls are found in plant cells. Both are responsible for regulating the entrance and exit of substances and particles, maintaining an internal balance. The Golgi apparatus is responsible for shipping vesicles delivered from the smooth endoplasmic reticulum. Chloroplasts are only found in plant cells and use sunlight to create energy via photosynthesis. Photosynthesis is where plants use carbon dioxide, water and sunlight to create energy in the form of glucose for plant cells. Mitochondria are found in both animal and plant cells and are the sites of cellular respiration, which creates ATP used as energy by the cell. Lysosomes are digestive organelles which break down macromolecules in the cell through hydrolysis. For a cell to survive, it needs selective isolation from its environment, which is done through the plasma membrane and energy through ATP and cellular respiration. The cell membrane is made up of the phospholipid bilayer which also has proteins embedded in it. These plasma membrane proteins are responsible for maintaining homeostasis through transport or by acting as receptor sites or even in the immune system for ell to cell recognition. Cellular transport can be done through active or passive transport. Cellular respiration is essential to produce ATP, which is the universal energy source for the cell. ATP drives many cellular processes, including protein transport. Cellular respiration has two main phases: glycolysis which breaks down glucose to pyruvic acid and oxidation of pyruvic acid to carbon dioxide and water. In eukaryotes, glycolysis occurs in the cytosol and the rest of the processes in the mitochondria. Photosynthesis converts light energy from the sun to chemical energy and stores this energy in glucose. Plants needs light, carbon dioxide and water to make glucose in the chloroplasts. It also produces oxygen. Photosynthesis has a light reaction and dark reaction(Calvin cycle).

Cellular reproduction is another important process for the cell and is how new cells are formed. Cells reproduce through two main processes: mitosis and meiosis. Meiosis only occurs for gamete cells or sex cell whereas mitosis occurs for the rest of the cells. During cellular reproduction, the cells duplicate their contents and transfer them to their daughter cells. This process is essential for day to day activity and human growth. Mitosis produces two identical daughter cells and is responsible for the reproduction of somatic cells or non-sex cells. Mitosis is also responsible for asexual reproduction. Meiosis produces 4 genetically different daughter cells and leads to the production of germ cells or sex cells which is also important for sexual reproduction and is a source of genetic diversity through crossing over. Meiosis is the reason humans can sexually reproduce. Mendelian inheritance relates to how genes are inherited from parent generation to their offspring generations. Mendel’s laws include the law of dominance, law of segregation and law of independent assortment. These traits are inherited by offspring from parents by chromosomes which carry the genetic material. Different phenotypes or physical traits can occur because of different combinations of genes or different genotypes in the offspring generation. DNA is condensed into chromatin and chromosomes to allow it to be transferred from parents to offspring. Issues or mutations in the DNA can lead to serious problems such as cancer. When cells continue to reproduce and is uncontrollable, this can lead to the formation of tumors. Cancer cells have mutations which make them divide uncontrollably. This can most often happen at the genetic level. Cancer spreads or metastasizes when it leaves its origin. This can become dangerous for the human body when it begins to affect critical internal organs or even the brain. Gene control or gene therapy may be a possible solution to treat cancer by targeting mutations in the cancer cells. This would provide a more effective treatment than chemically treating all cells in the body via chemotherapy which can cause damage to other, healthy parts of the body.

Sample 2

.All life forms that are thought to be alive must have certain key qualities or capacities. These include: request, reaction to the earth, propagation, development and advancement, control, vitality preparing and advancement. Since we perceive life by what living things do, these seven qualities serve to characterize life.

Properties of Life. Every single living being offer a few key attributes or capacities: request, affectability or reaction to nature, proliferation, development and improvement, direction, homeostasis, and vitality preparing.

Living beings comprise of one or more cells keeping in mind they might be exceptionally intricate they are very sorted out and facilitated. Inside every cell, iotas make up particles. Atoms thusly make up cell organelles and other cell considerations. Comparable cells structure tissues that then team up to make organs. Every organ has a particular capacity that continues living life forms alive. Another living property that living beings have is control. The earth outside of a life form may change definitely. However living creatures can adjust to such extreme changes by altering its inner surroundings in this manner having the capacity to facilitate inward capacities, react to boosts, and adapt to ecological hassles. All creatures develop and build up; another critical property that portrays living things. Data conveyed by DNA controls the example of development and advancement in all living beings. Living beings develop and create taking after particular directions coded for by their qualities. These qualities give guidelines that will coordinate cell development and improvement, guaranteeing that a species’ young will grow up to display a significant number of the same attributes as its folks. All creatures utilize a wellspring of vitality for their metabolic exercises. They take in vitality and utilize that vitality to do the majority of life’s exercises. In the wake of spending the vitality acquired to complete their capacity the vitality is changed into warmth which likewise assists with control. This procedure is known as vitality preparing and is a critical property of life. Living creatures can likewise react to boosts inside nature. Life forms can react to assorted boosts.

Basic cell structures and their capacity:

cell film – manages what enters and leaves the cell

cytoplasm (cytosol) – fluid medium in cell, numerous particles broke up and move in cytoplasm

core – houses and ensures chromosomes

endoplasmic reticulum – inside layer that parcels cytoplasm

Golgi device – film layers that bundles emissions

lysosomes – film sacs that contain digestive proteins

ribosomes – collect proteins

cytoskeleton – fibers and tubules that give backing and deliver development

mitochondria – give the majority of vitality to cell by “smoldering” fuel.

Photosynthesis and cell breath are the two principle forms performed by most living beings to acquire usable vitality from nature. While photosynthesis is performed by most plants who can set up their own particular nourishment, most creatures satisfy their vitality prerequisites through cell breath.

Photosynthesis is the procedure utilized by plant cells to change over light vitality from the sun into substance vitality, to make vitality rich starch particles like glucose. Cell breath is the way toward separating nourishment particles to get vitality and store it as adenosine triphosphate (ATP) atoms.

Plant cells, in the wake of making sugar particles through photosynthesis, experience cell breath to make ATP atoms. Creatures get sustenance atoms from plants and different living beings, and afterward experience cell breath to get ATP particles. Every living being use these put away ATP atoms to complete their metabolic procedures.

Photosynthesis

Photosynthesis happens in the phones of plant leaves in structures called chloroplasts, which contain chlorophyll. The plant cells retain light from the sun through the chlorophyll shade, and utilizing water and carbon dioxide got from nature, experience a progression of concoction responses to deliver starch atoms.

The elements of DNA are basic for legacy, coding for proteins and the hereditary diagram of life. Given the tremendousness of DNA’s capacities in the human body and its obligation regarding the development and upkeep of life, it is not amazing that the revelation of DNA has prompted such an awesome number of advancements in treating malady. DNA holds the directions for a life form’s improvement and multiplication – eventually, its survival.

Coding for Proteins

DNA holds the code for proteins, which are mind boggling particles that do immense measures of work around our body. Data in DNA is at first “perused” and afterward it is deciphered into a dispatcher particle. After, the data held in this dispatcher atom is interpreted into a “dialect” that the body can get it. This dialect is one of amino acids, which are otherwise called the building squares of proteins. It is this particular dialect that directs how the amino acids ought to deliver a specific protein. In the event that you consider the twenty various types of amino acids, you can see that the requesting can deliver a colossal assortment of proteins.

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