Plants
... begins to change. The pollen cell grows a tube. This tube is called a pollen tube. The pollen tube grows down into the stigma. It continues to grow down through the style and the ovary. Finally, the tip of the pollen tube enters the ovule. After the pollen tube enters the ovule, the tip of the tube ...
... begins to change. The pollen cell grows a tube. This tube is called a pollen tube. The pollen tube grows down into the stigma. It continues to grow down through the style and the ovary. Finally, the tip of the pollen tube enters the ovule. After the pollen tube enters the ovule, the tip of the tube ...
AP Biology Unit 1- The Chemistry of Life
... smaller subatomic particles called protons, neutrons, and electrons. Draw and label a diagram of a carbon atom, include the subatomic particles: ...
... smaller subatomic particles called protons, neutrons, and electrons. Draw and label a diagram of a carbon atom, include the subatomic particles: ...
Quick Links
... Bacteria were traditionally categorised as plants because many forms of bacteria photosynthesised their food like plants. However bacteria also have locomotion, associated with animal life. Genetic research has now shown that there are at least eleven major divisions of bacteria, all of which are mo ...
... Bacteria were traditionally categorised as plants because many forms of bacteria photosynthesised their food like plants. However bacteria also have locomotion, associated with animal life. Genetic research has now shown that there are at least eleven major divisions of bacteria, all of which are mo ...
Molecules of Life---Whoa! - Rimac-Science-Web
... • Polysaccharides: large macromolecules formed ...
... • Polysaccharides: large macromolecules formed ...
ecosystem - yr8geography
... Each cycle consists of plants taking up nutrients from the soil. The nutrients are then used by plants, or by animals which consume the plants. When the plants or animals die, they decompose and the nutrients are released and returned to the soil ready for future use. ...
... Each cycle consists of plants taking up nutrients from the soil. The nutrients are then used by plants, or by animals which consume the plants. When the plants or animals die, they decompose and the nutrients are released and returned to the soil ready for future use. ...
Biology Organic Molecules Notes
... - composed of 3 or more monosaccharides - Example: glycogen, starch, cellulose ...
... - composed of 3 or more monosaccharides - Example: glycogen, starch, cellulose ...
Chemistry of Life
... 4. Atoms of the same element that differ in the number of neutrons they contain are known as __________________________. a. They are identified by their __________________________. b. Because they have the same number of electrons, all ___________________ of an element have the same chemical _______ ...
... 4. Atoms of the same element that differ in the number of neutrons they contain are known as __________________________. a. They are identified by their __________________________. b. Because they have the same number of electrons, all ___________________ of an element have the same chemical _______ ...
Producers, Consumers and Decomposers
... energy in a different way than producers or consumers. These organisms, called decomposers, get energy by breaking down nutrients in dead organisms. As they break down the nutrients, decomposers produce simple products such as water and carbon dioxide. These products are returned to the ecosystem fo ...
... energy in a different way than producers or consumers. These organisms, called decomposers, get energy by breaking down nutrients in dead organisms. As they break down the nutrients, decomposers produce simple products such as water and carbon dioxide. These products are returned to the ecosystem fo ...
Bougainvillea - Tagawa Gardens
... can be potted in small containers in a soilless mix with added perlite to give more drainage. Care should be exercised in transplanting since the fine roots often do not knit the soil together in a firm root ball. When repotting annually, slice off the outer 1"-2" of the root ball, and repot in the ...
... can be potted in small containers in a soilless mix with added perlite to give more drainage. Care should be exercised in transplanting since the fine roots often do not knit the soil together in a firm root ball. When repotting annually, slice off the outer 1"-2" of the root ball, and repot in the ...
What is an organism?
... = groups of many different populations living in one area. ( all the different types of frogs, fish, turtles and cat tails in Mrs. ...
... = groups of many different populations living in one area. ( all the different types of frogs, fish, turtles and cat tails in Mrs. ...
SET
... Another identical disc Q rolling with same speed encounters a smoth inclined plane. Then if P climbs to height h1 and Q to height h2, then (1) h1 = h2 (2) h1 > h2 (3) h1 < h2 (4) h1 < h2 if radius of discs is large 38. A particle mass m hits a rod of mass 2m, length l, lying on smooth horizontal sur ...
... Another identical disc Q rolling with same speed encounters a smoth inclined plane. Then if P climbs to height h1 and Q to height h2, then (1) h1 = h2 (2) h1 > h2 (3) h1 < h2 (4) h1 < h2 if radius of discs is large 38. A particle mass m hits a rod of mass 2m, length l, lying on smooth horizontal sur ...
Cellular Respiration
... • Some prokaryotes use S, N, CO2, and inorganic metals as final e- acceptors in place of O2. Less ATP produced but enough to be called respiration. • Methanogens are part of Archaea and use CO2 as e- acceptor. They convert it into CH4 or methane. • Some prokaryotes use SO2 or other sulfates as e- ac ...
... • Some prokaryotes use S, N, CO2, and inorganic metals as final e- acceptors in place of O2. Less ATP produced but enough to be called respiration. • Methanogens are part of Archaea and use CO2 as e- acceptor. They convert it into CH4 or methane. • Some prokaryotes use SO2 or other sulfates as e- ac ...
GLYCOLYSIS AND FERMENTATION
... and pyruvic acid. 3. These pathways regenerate NAD1, which the cells can use to keep glycolysis going to make more ATP in the absence of oxygen. 4. Without niacin or the ability to make it, the person would be deficient in NAD1. Since NAD1 is used in Step 3 of glycolysis, glycolysis would ...
... and pyruvic acid. 3. These pathways regenerate NAD1, which the cells can use to keep glycolysis going to make more ATP in the absence of oxygen. 4. Without niacin or the ability to make it, the person would be deficient in NAD1. Since NAD1 is used in Step 3 of glycolysis, glycolysis would ...
Glossary - Yolo Basin Foundation
... improve plants' growth and yield. Natural fertilizers are made from composted manures and plants or extracted from minerals in the earth. Food Chain: the transfer of food energy from the source in plants through a series of animals. For example, a green leafeating insect and insect-eating bird would ...
... improve plants' growth and yield. Natural fertilizers are made from composted manures and plants or extracted from minerals in the earth. Food Chain: the transfer of food energy from the source in plants through a series of animals. For example, a green leafeating insect and insect-eating bird would ...
Plant Structure and Function Notes
... Fibrous Roots: have many small branching roots from a central point example: grass ...
... Fibrous Roots: have many small branching roots from a central point example: grass ...
Recap: structure of ATP
... matrix via ATP synthase 6. Movement of protons drives synthesis of ATP from ADP and inorganic phosphate 7. Protons, electrons and oxygen combine to form water, the final electron acceptor ...
... matrix via ATP synthase 6. Movement of protons drives synthesis of ATP from ADP and inorganic phosphate 7. Protons, electrons and oxygen combine to form water, the final electron acceptor ...
Sol: A process of physio
... Mechanism of Electron transport system – Glucose molecule is completely oxidized by the end of the citric acid cycle. The energy is not released unless NADH and FADH are oxidized through the ETS. The oxidation means ‘removal of electrons from it’. Metabolic pathway through which the electron passes ...
... Mechanism of Electron transport system – Glucose molecule is completely oxidized by the end of the citric acid cycle. The energy is not released unless NADH and FADH are oxidized through the ETS. The oxidation means ‘removal of electrons from it’. Metabolic pathway through which the electron passes ...
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek φῶς, phōs, ""light"", and σύνθεσις, synthesis, ""putting together"". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis maintains atmospheric oxygen levels and supplies all of the organic compounds and most of the energy necessary for life on Earth.Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. Furthermore, two further compounds are generated: reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the ""energy currency"" of cells.In plants, algae and cyanobacteria, sugars are produced by a subsequent sequence of light-independent reactions called the Calvin cycle, but some bacteria use different mechanisms, such as the reverse Krebs cycle. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents, such as hydrogen or hydrogen sulfide, as sources of electrons, rather than water. Cyanobacteria appeared later; the excess oxygen they produced contributed to the oxygen catastrophe, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about three times the current power consumption of human civilization.Photosynthetic organisms also convert around 100–115 thousand million metric tonnes of carbon into biomass per year.