Differentiate Living things from non-living things according to: Organization All living organisms have a definite shape and size as well as physical and chemical composition inherited from their parents. This is possible because of a high degree of organization. The molecules of which an organism is made up are organized into cells, which in turn are organized into tissues, organs and organ systems making the whole individual. This kind of complex organization is not found in non-living things
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are the Eukaryotes which are much larger and more complex than the Prokaryotic cell. The Eukaryote cell contains the nucleus which is known as organelles. There are many known organelles such as endoplasmic reticulum, Golgi apparatus, and mitochondria just to mention a few. Let’s focus on the nucleus. The main reason I am going to focus on this organelle because it is one of the most important parts to a cell. There are many analogies that can be used to describe the nucleus. One could compare this
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Endoplasmic Reticulum organelle. 2. The Ribosome of prokaryotes is 70 S while in eukaryote it is 80 S 3. Light absorption in chloroplasts takes place due to presence of chlorophyll in granna 4. Nucleolus is the site of r - RNA synthesis. 5. Cell Membrane usually a made of phospholipid bilayer and some proteins molecule embedded in. 6. The simplest amino acid is glycine 7. In eukaryotic cell DNA is linear and found in nucleus organelle 8. The cell wall
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Tma1 TMA 1 1.1 Describe the four basic human body structure units and their functions. The four basic human structure units are : * Cells * Tissues * Organs * Systems Cells : These are the basic structural unit of the body that maintain life. Every person consists of billions of cells that perform a infinite number of tasks in order to maintain the continuation of life. These live independently and can reproduce themselves. A cell also comes in different shapes and sizes
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All living cells have the same cell structure, which is to say: plasma membrane, cytosol, ribosomes, and at least one chromosome. The plasma membrane is vital to the cell to be able to perform even basic functions. The plasma membrane is made up of fats and proteins (Editorial Board, 2012). The basic function of the plasma membrane is to be able to allow certain molecules to pass in and out of the cell. The fat helps to allow food and waste to pass through the cell, while the protein serves as
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(carbon dioxide and urea) must exit a cell through the cell membrane. - The amount of cell membrane = Surface Area of the cell. - Inside the cell, organelles use up nutrients and produce wastes. The larger the cell, the more nutrients needed and the more wastes produced. - The size of the cell (based on the number of organelles) = Volume of the cell. [pic] Cell S.A Volume S.A. : Volume LxWx6 LxWxH Ratio A 6 units2 1 unit3 6 : 1 B 24 units2 8 units3
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Animal cell “All animals and plants are made of cells. Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. Plant cells also have a cell wall, and often have chloroplasts and a permanent vacuole.” http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/cells/cells1.shtml Reading from bbc bitesize I found out that these are the functions of each part of the animal cell. Cell membrane | Controls what substances
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Chapter 1: • Name four properties that all life forms have. Order, Regulation, Growth and Development, and Energy Processing 2. Briefly discuss Darwin’s theory of Natural Selection. The process of descent with modification is Darwin’s take on evolution. The mechanism he proposed for this was called natural selection, which is another way of saying unequalled reproductive success. First, he observed overproduction and competition. Next, he observed individual variation. Finally Darwin concluded
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as some unicellular organisms. The eukaryotic cell is much bigger and contains membrane bound compartments where metabolic activities take place. The components of the cell include, plasma membrane, cytoskeleton, cytoplasm, genetic material, organelles, nucleus, ribosome, mitochondria and chloroplasts, endoplasmic reticulum and the golgi apparatus. The plasma membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of proteins and lipids
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Photosynthesis’ main function is to transform solar energy into the chemical energy of a carbohydrate (McGraw-Hill Learning Solutions, 2009 p. 86). Energy from the sun is absorbed by chlorophyll, which is a pigment in the chloroplasts (membrane bound organelle in algae and plants with chlorophyll, where photosynthesis takes place) of plants. Once in the chloroplasts the energy is used to split water into hydrogen and oxygen. The hydrogen then combines with carbon dioxide to make sugars and energy-storing
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