Function

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All cell Parts and their Functions
June 9, 2019

All cell Parts and their Functions

This simple cartoon shows general similarities and differences between eukaryote and prokaryote cells. Image courtesy of Windows to the Universe Related links: Below is a list of organelles that are commonly found in eukaryotic cells. Organelle Function Nucleus The “brains” of the cell, the nucleus directs cell activities and contains genetic material called…

Function of Ribosome in Bacterial cells
April 28, 2019

Function of Ribosome in Bacterial cells

Ribosomes are small particles, present in large numbers in all the living cells. They are sites of protein synthesis. The ribosome word is derived - ribo from ribonucleic acid and somes from the Greek word soma which means body . The ribosomes link amino acids together in the order that is specified by the messenger RNA molecules. The ribosomes are made…

Function of Capsule in Bacterial cell
April 25, 2019

Function of Capsule in Bacterial cell

Structure-Function-Pathogenicity Relationships MM 1-16 General 1. To compare and contrast the Gram-positive and the Gram-negative bacterial cells 2. To develop an understanding of the relationships between cell components and clinical features of disease 3. To explain the bacterial growth curve 4. To familiarize you with immune reactions induced by the bacterial…

Prokaryotic cells Parts and Functions
April 16, 2019

Prokaryotic cells Parts and Functions

Prokaryotic cells are simpler and smaller than the eukaryotic cells. The term prokaryote is derived from the Greek word- “prokaryote” meaning before nuclei. These cells lack membrane bound organelles. Prokaryotic cells are unicellular organisms, which reproduce through binary fission. In some cases few prokaryotic organisms also reproduce by budding. Prokaryotic…

Functions of soil organic matter
April 7, 2019

Functions of soil organic matter

Effect on soil physical condition, soil erosion and soil buffering and exchange capacity Humus has a profound effect on the structure of many soils. The deterioration of structure that accompanies intensive tillage is usually less severe in soils adequately supplied with humus. When humus is lost, soils tend to become hard, compact and cloddy. Aeration, water-holding…

Parts of Prokaryotic cells and their Functions
February 24, 2019

Parts of Prokaryotic cells and their Functions

Prokaryotic cells are one of the most basic kinds of cells that are out there in Biology. They are the cells of bacteria, so let s take a look at what makes up the key characteristics of a prokaryote. Now their name tells you one of their most important things; pro means before kary means nucleus, so this tells you that this is what cells that evolved before…

Parts of the cell and their Functions
January 28, 2019

Parts of the cell and their Functions

The Golgi Apparatus Model. David Gunn / Getty Images The following are examples of structures and organelles that can be found in typical plant cells: Chloroplast - the sites of photosynthesis in a plant cell. They contain chlorophyll, a green pigment that absorbs energy from sunlight. Endoplasmic Reticulum (ER) - extensive network of membranes composed of both…

Function of pili in Bacterial cell
January 22, 2019

Function of pili in Bacterial cell

Found mainly in Gram negative organisms, Fimbriae or pili ( singlular: pilus ) are hair like filaments (tiny hollow projections) that extend from the cell membrane into the external environment. A pilus is composed of subunits of the protein pilin. Bacteria use adherence fimbriae (pili) to overcome the body’s defense mechanism and cause disease. Pili are small…

Parts of a cell and their Functions
January 4, 2019

Parts of a cell and their Functions

Plasma membrane- The membrane enclosing a cell is made up of two lipid layers called a bilipid membrane. The lipids that are present in the plasma membrane are called phospholipids. These lipid layers are made up of a number of fatty acid building blocks. The fatty acid that makes up this membrane has two different parts to it- a small water loving head…

Functions of Parts of the cell
December 20, 2018

Functions of Parts of the cell

All living things are made up of cells. The structures of different types of cells are related to their functions. Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. Plant and algal cells also have a cell wall, and often have chloroplasts and a permanent vacuole. Bacterial and yeast cells…

Cytoplasm Function in cell
December 17, 2018

Cytoplasm Function in cell

Definition: The cytoplasm consists of all of the contents outside of the nucleus and enclosed within the cell membrane of a cell. It is clear in color and has a gel-like appearance. The cytoplasm is composed mainly of water and also contains enzymes, salts, organelles, and various organic molecules. Cytoplasm Function The cytoplasm functions to support and suspend…

Plant cells Chromosomes Function
October 30, 2018

Plant cells Chromosomes Function

Chromosomes are the thread-like structure found in the nuclei of both animal and plant cells. They are made of protein and one molecule of deoxyribonucleic acid (DNA). As the genetic material passes from parents to child, the chromosomes are responsible for containing the instructions that make the offspring unique while still carrying traits from the parent…

Bacterial Infections
October 21, 2018

Bacterial Infections

Coughing and sneezing. Contact with infected people, especially through kissing and sex. Contact with contaminated surfaces, food, and water. Contact with infected creatures, including pets, livestock, and insects such as fleas and ticks. Microbes can also cause: Acute infections, which are short-lived. Chronic infections, which can last for weeks, months, or…

Cell wall in Bacteria Function
October 18, 2018

Cell wall in Bacteria Function

In Simple words, it can be described as it is “wall” it gives Protection, Support to the inner Cellular parts or Organelles of a bacteria, also it gives a defined shape to it. A Image of Bacterial cell (Image Courtesy:Google) In Technical terms, there are some points that can be added to it, they are Cell wall of a Bacteria provides a defined Shape to it It protects…

Cell flagella Function
October 15, 2018

Cell flagella Function

Centrioles function as the major micro tubule organizing centers which is an important event in two major cellular processes - cell division and cilia and/or flagella formation. Given below is a description of the precise role of centrioles in each of these processes. Cell Division The pair of centrioles within a cell duplicates, and the two pairs migrate to…

Capsule Function in Prokaryotic cell
September 24, 2018

Capsule Function in Prokaryotic cell

A prokaryote is a simple, unicellular organism that lacks an organized nucleus or other membrane-bound organelle. Learning Objective Describe the structure of prokaryotic cells Key Points Prokaryotes lack an organized nucleus and other membrane-bound organelles. Prokaryotic DNA is found in a central part of the cell called the nucleoid. The cell wall of a prokaryote…

Bacterial cells Function
September 21, 2018

Bacterial cells Function

Bacteria cells function quite differently from human cells, from the function of the cell as a whole, right down to the individual structures in each cell. Bacteria exist in nature as individual cells. While some bacteria work together in a group, no bacteria forms multicellular tissues. Bacteria have organized structures within the cell, but do not have membrane-bound…

Parts and Functions of a Prokaryotic cell
September 1, 2018

Parts and Functions of a Prokaryotic cell

Prokaryotic cells fall into a size range of about 1–5µm and hence can be observed clearly by microscopes. However, some prokaryotic cells may be larger than this. A prokaryotic cell contains external and internal structures. Capsule, flagella, axial filaments, fimbriae, and pili are present external to the cellwall, while interior of the bacterial cell contains…

Flagella Function in Animal cells
July 27, 2018

Flagella Function in Animal cells

Cilia and flagella are motile cellular appendages found in most microorganisms and animals, but not in higher plants. In multicellular organisms, cilia function to move a cell or group of cells or to help transport fluid or materials past them. The respiratory tract in humans is lined with cilia that keep inhaled dust, smog, and potentially harmful microorganisms…

Bacterial cell Diagram and Functions
June 24, 2018

Bacterial cell Diagram and Functions

Advertisement. EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages. Click here to learn more. The cell is the basic unit of life. All organisms are made up of cells (or in some cases, a single cell). Most cells are very small; most are invisible without using a…

Functions of Pili in Bacteria
June 12, 2018

Functions of Pili in Bacteria

This is clearly beneficial to the F-plasmid, since its genes get replicated, but why is it useful to the bacteria? The F-plasmid often contains useful genes that deal with stressful situations that have recently arisen, for will spread this resistance to other bacteria. Since the F-plasmid can integrate into the host s chromosomal DNA it can, upon leaving, take…

Bacterial cell Parts and Functions
May 25, 2018

Bacterial cell Parts and Functions

The bacterial cell surface (or envelope) can vary considerably in its structure, and it plays a central role in the properties and capabilities of the cell. The one feature present in all cells is the cytoplasmic , which separates the inside of the cell from its external environment, regulates the flow of nutrients, maintains the proper intracellular milieu…

Cell Component and their Functions
December 23, 2017

Cell Component and their Functions

The cell body (soma) is the factory of the neuron. It produces all the proteins for the dendrites, axons and synaptic terminals and contains specialized organelles such as the mitochondria, Golgi apparatus, endoplasmic reticulum, secretory granules, ribosomes and polysomes to provide energy and make the parts, as well as a production line to assemble the parts…

Bacteria Diagram and Functions
November 25, 2017

Bacteria Diagram and Functions

Summary: A new study reaffirms the link between intestinal bacteria and altered gut and brain function. Source: McMaster University. Finding may lead to new microbiota-directed therapies for gastrointestinal upset and brain disorders. Research from McMaster University has found that bacteria in the gut impacts both intestinal and behavioural symptoms in patients…

Bacterial cell wall Function
November 4, 2017

Bacterial cell wall Function

There are different types of cells, including animal cells, plant cells, fungal cells and bacteria cells. They vary in structure, depending on the type of cell and its function. Cell walls can be flexible, like those in plant cells, or rigid, like those in bacterial cells. The main job of the cell wall is to prevent the cell from over-expanding when water enters…

Function of Bacterial plasmid
October 2, 2017

Function of Bacterial plasmid

A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell s chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance. Plasmids have a wide range of lengths, from roughly one thousand…

Function of Bacterial
October 4, 2016

Function of Bacterial

The crystal structure of the membrane-integrated nitric oxide reductase cNOR from Pseudomonas aeruginosa was determined. The smaller NorC subunit of cNOR is comprised of 1 trans-membrane helix and a hydrophilic domain, where the heme is located, while the larger NorB subunit consists of 12 trans-membrane helices, which contain heme b and the catalytically active…

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