1. water molecules have +0 charged ends and can form weak hydrogen bonds . water is said to be a dipolar molecule. 2. The basic uits of CO2 are monosaccharides ‚ characterized by the number of carbon atoms‚ e.g pentose sugars have 5 carbons 3. Two monossaccharids can link together to form a disaccharide . the bond between them is a glycosidic linkage formed in a condensation reaction 4. Starch is a polysaccharide composed of amylose and amylopectin. Its main function is as a storage
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Damn Near Everything There Is To Know About Cells: Biology Cell Report There are many parts of a cell‚ they all have specific duties‚ and are all needed to continue the life of the cell. Some cells exist as single-celled organisms that perform all of the organism’s metabolism within a single cell. Such single-celled organisms are called unicellular. Other organisms are made up of many cells‚ with their cells specialized to perform distinct metabolic functions. One cell within an organism may
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1. There are two main types of cells‚ prokaryotic and eukaryotic. The connection between the two can be seen right from their prefixes‚ pro meaning before and eu meaning true or good. This is because prokaryotic cells are before a nucleus and eukaryotic cells possess a true nucleus. This has led to many theories that eukaryotic cells have evolved from prokaryotes. The evidence for this is most noticeable in the structure of the cells‚ which will be compared below. Prokaryotic cells have no
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compartmentalized organelles such as chloroplasts and mitochondria. The area of cellular respiration in prokaryotes is the respiratory membrane. For aerobic prokaryote the infoldings of the plasma membrane are similar to the cristae of mitochondria‚ whose purpose in eukaryotic cells is cellular respiration. In photosynthetic prokaryotes‚ the area responsible for cellular respiration is the thylakoid membrane. It functions are similar in manner to chloroplasts in eukaryotic cells. 5. Explain
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Characteristics that uniquely identify plants: they are autotrophic‚ non-motile‚ they are photosynthetic‚ contain chloroplast‚ perform alternation of generations‚ plants are deciduous or evergreen‚ and the type of leaf and stem structure they have (http://wiki.answers.com/Q/What_characteristics_do_all_plants_share). Most plants are autotrophic‚ meaning they are capable of producing their own food and nutrients themselves‚ synthesizing their own food from inorganic substances‚ by using light or
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in a vascular plant. Fluids are transported between the roots and the shoots through the stem by the phloem and xylem. Leaves are the main photosynthetic organ of vascular plants. They have a fattened blade‚ a stalk and a petiole. They have the chloroplast (with chlorophyll) and the gas exchange takes place here. 2.) Intra-organism communication is possible through the xylem and the phloem. The transpiratinal pull is due to cohesion and adhesion. Evaporative cooling will result. A plant’s defense
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mitochondria‚ only animal cells use it to produce energy from food. Plant cells on the other hand contain something animals cells do not‚ which is chloroplast. Plants use photosynthesis to gather energy. Photosynthesis is the conversion of sunlight to energy which occurs inside of a plant. Without chloroplasts‚ photosynthesis would not be possible. Chloroplasts are large‚ double membrane bound structures. They are usually around five micrometers across. These structures contain a substance called chlorophyll
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metabolism Lec 11 5. Physiological implications of aerobic metabolism A. Cytochrome P450 B. Reactive Oxygen Species C. Antioxidant Mechanisms Mitochondria and chloroplasts are organelles of energy conversion that carry their own DNA Mitochondria – release energy from nutrients and convert it to ATP Chloroplasts – capture solar energy and store it in carbohydrates Organelles in a cell Mitochondria Mitochondria are membrane-enclosed organelles distributed through the cytosol
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to make sugar. The process of photosynthesis takes place in the chloroplasts‚ specifically using chlorophyll‚ the green pigment involved in photosynthesis. ------------------------------------------------- http://biology.clc.uc.edu/courses/bio104/photosyn.htm ------------------------------------------------- 2- Chloroplasts: are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis. Chloroplasts capture light energy‚ store it in the energy storage molecules
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What structures were unique to animal cells? (2 points)--Answer below: a. 1. Rough ER 2. Smooth ER 3. Golgi Apparatus 4. Nucleus b. 1. Chloroplast 2. Cell walls 3. Vacuole c. 1. Centrioles 2. Lysosomes 2. List five structures observed in the cell images and provide the function of each structure. (5 points)a
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