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Science Unicellular and Multicellular Organisms Concept Map

Background Knowledge : Green, Unicellular Information : Yellow, Multicellular Information: Orange, Differences : White

Kishanthan Janendran

on 29 November 2013

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Transcript of Science Unicellular and Multicellular Organisms Concept Map

MultiCellular Organisms
Unicellular Organisms
Examples of organisms
Most animals are multicellular. You can tell if an animal is multicellular if it has all the complete parts that are required in able to call an animal 'complete.' Some unicellular animals are not given that much attention but they also exist.
Most plants are multicellular. You can tell if a plant is multicellular if it has all the complete parts that are required in able to call a plant 'complete.' Some unicellular plants are not given that much attention but they also exist.
Fungi is the plural of the word fungus which is described as an organism that feeds on organic matter and reproduces through spores. They are normally single-celled or multi-celled and they tend to lack chlorophyll. Also, the taxonomic kingdom in which all kinds of fungi are placed is known as fungi.
Fungi are both unicellular and multicellular. Unicellular fungi are yeasts. All other types of fungi are multicellular.
Protists can be algae, green algae known as Ulva, that are multicellular protists. They begin as colonies of unicellular protists known as Volvax, but the ones that break away are the multicellular
Bacteria are microscopic single-celled organisms that reproduce by binary fission, i.e. one cell splits into two, the two cells split into four, etc. They are the most abundant organisms in the world, and most of them are harmless.
Protists are organisms that are part of the Protista kingdom. It is a very diverse group, the most in fact, and some examples of protists include kelp, seaweed, & plankton.
Many bacteria are free-living unicellular, but many also form colonies of genetically identical individuals, and a few are multicellular.
Habitat and Nutrition
The Environment
Paramecia and Amoeba
Cellular Differentiation
Living Organisms
Human Systems
Living things that only has one cell is called a unicellular organism. Most are so small that you need a microscope to see them. Some examples of unicellular organisms are bacteria and unicellular fungi.
A microorganism or microbe is an organism that is too small to be seen with the naked human eye. Although a microorganism is microscopic, it is found everywhere especially in living things and plants. It could be a tiny one-celled organism such as a virus, fungi or bacteria, and they are found everywhere in the world. Micro – Small Organism - organism
Bacteria that cannot survive without oxygen are called obligate aerobes. These organisms use oxygen to oxidize substances such as sugars or fats, in order to obtain energy. Examples of obligate aerobic bacteria include Nocardia (Gram-positive) as well as Mycobacterium tuberculosis (acid-fast).
Because O2 is small, it can diffuse passively through the cell wall and cytoplasm membrane; random thermal agitation will move it from higher concentration to lower concentration. The same way goes with the carbon dioxide and other elements.
Microorganisms can live in the air, on land, and in fresh or salt water environments. Some of them, pathogens, can be harmful and causes diseases, but there are some microorganisms that are needed for living things to survive. Mostly wet areas.
Microorganisms or bacteria can feed on almost anything from corn proteins to soybean and sugar to iron nails, sulphur and the composites in wood. Some bacteria require food such as sugars, vitamins, amino acids and starches to obtain the energy they need.
Bacteria are usually unicellular organisms that consist of one single cell. They adapt to the new environment by natural selection. They develop traits that are more adaptive to the environment.
They respond to the new environment by altering their gene expression pattern; thus, they express different enzymes depending on the carbon sources and other nutrients available to them.
Paramecium are considered to be unicellular organisms that belong to the kingdom Protista. An amoeba is a type of protozoa that can be found in rivers and ponds. They reproduce through cell division. These protists can change their shape constantly and are single-celled.
Paramecium live in aquatic areas especially in stagnate warm pools of water such as ponds, lakes or puddles. They eat bacteria, algae, and dead animal matter. First, amoebas stretch one part of their body and then move the rest part of their body using the stretched part of their body. Some may eat dead organic matter.
The definition of a multicellular organism is an organism that has more than one cell. In order to form a multicellular organism the cells need to attach to other cells. A unicellular organism is an organism that has only one cell.
Cell specialization is a common occurrence in multi-cellular organisms. This process helps generic cells change into cells with a very specific and specialized function, with specialization being one of the basics of a developing embryo. The ball of cells known as a blast cyst will undergo specialization, creating cells that are specific to certain organs and that make up the basics of these organs. The cells will have a specific function, just as the organs in a body serve a different function.
Cell differentiation is the process in which less specialised cell develops into a specific purpose cell in response to specific triggers from the body. The purpose of cell differentiation is to supply organisms with the many different types of specialized cells needed to perform specific functions. Organisms begin from a single cell that contains all the required genetic information, or instructions, which reproduces into many stem with the potential to become any type of specialized cell.

A group of cells that is similar in shape and function is called a tissue. In animals, four basic types of tissue are epithelial tissue, muscle tissue, connective tissue, and nervous tissue. Blood is an example of connective tissue.
Different tissues assemble to form larger structures, such as the skin, stomach, and heart. These structures are called organs. Organs are made up of different types of tissue that work together to achieve one or more functions within the organism.
Organs never work alone. Two or more organs working together to perform a related function are known as an organ system. In humans, the digestive system is an organ system made up of several organs: the mouth, esophagus, stomach, liver, pancreas, small and large intestines.
Lungs assist the intake and exhalation of air.To take away carbon dioxide from blood and refill it with fresh oxygen. The main function of your lungs is to provide oxygen to other parts of your body by loading it into red blood cells and sending them to that part of the body.The function of the lungs is transport oxygen into the bloodstream and to take carbon dioxide out of the bloodstream.
The liver has a wide range of functions but the main ones include processing of digested food from the intestine and controlling fat, glucose and amino acids levels in the blood. The liver is also tasked with the decomposition of red blood cells, the synthesis of plasma protein and production of bile.
The lungs and the liver.
In a plant, for example, the cells working together in the roots make sure that the plant gets the water and nutrients from the soil that the plant needs to survive. The cells working together in the leaves make sure that the plant exchanges oxygen for the carbon dioxide that the plant needs to survive. The roots and the leaves work together as a system for the plant to survive.
Different parts have different functions, but all of the parts work together to help the animal survive. Some parts are responsible for allowing the animal to reproduce. The reproductive organs on an animal also determine its gender. Often, male and female animal anatomy varies.
Plants an Animals
Multicellular organisms grow and develop by reproducing, responding to the environment, maintain an internal stable environment, use materials and energy and consists of cells. Reproducing is really important. Reproducing helps multicellular organisms to develop and grow faster. Without it, no organism can survive. Responding to the environment is also important. This is where hibernation occur
The disadvantage of unicellular organisms when compared with multicellular organisms is the lack of specified functions. Unicellular organisms need to do everything on their own. Meanwhile, multicellular organisms have cells for each specific function.
The most basic requirements for coordinated growth behavior are cell-to-cell signaling and coordinated responses. These are generally seen and associated with multicellular organisms. The fact that they are seen in the Gabon organisms simply means that they are multicellular organisms.
Like us humans, many multicellular organisms breathe normally like human beings, animals and plants. Humans through lungs, animals also through lungs or other organ and plants with theier leaves.
The advantages of being a multicellular organism are varied. Most advantages have to do with size, movement, and higher functioning. A single celled organism has difficulty adapting while multicellular organisms can adapt easily to change. The more cells something has usually the more activities the organism can do.
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