What is the repeating unit of a polymer called?
monomer
How do you draw a repeating unit?
When drawing one, you need to:
- change the double bond in the monomer to a single bond in the repeat unit.
- add a bond to each end of the repeat unit.
- draw brackets around the repeating unit so that the brackets go through the middle of the bonds at the end.
What is the repeating unit of a silicone polymer chain?
Polymeric organosilicon compounds containing Si-O-Si bonds are called silicones. Silicones have general formula (R2SiO)n. Hence repeating unit of silicone is R2SiO−.
What is the repeating structural unit in polythene polymer?
ethylene molecule
What is the small repeating unit in polythene?
The repeating structural unit is ethylene or ethene.
What is a macromolecule made up of mainly carbon and hydrogen atoms that is primarily used for energy storage and in cell membranes?
Lipid A macromolecule made up of mainly carbon and hydrogen atoms that is primarily used for energy storage and in cell membranes.
What is the most important biomolecule?
You could argue that the nucleic acid, DNA, is more IMPORTANT (the word you used in the title to your query) than the other three types of molecule because DNA contains the information to make all the proteins in a cell.
What type of biomolecule is an enzyme?
Enzymes are biological molecules (proteins) that act as catalysts and help complex reactions occur everywhere in life. Let’s say you ate a piece of meat. Proteases would go to work and help break down the peptide bonds between the amino acids.
What regulates cell processes?
The functions of proteins are they control the rate of reaction, regulate cell processes, form important cell structures, or transport substances to help fight diseases. The functions of Nucleic Acids are they transmit and store heredity, or genetic, information. Enzymes speed up chemical reactions in cells.
What are the 5 cell processes?
Cells perform 5 processes to keep them alive: metabolism, respiration, diffusion, osmosis, and active transport.
What are the four cell processes?
The four essential processes by which a multicellular organism is made: cell proliferation, cell specialization, cell interaction, and cell movement.
What is meant by cell processes?
Definition: Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level. Parent Terms: is-a biological_process.
What are the 3 cellular processes?
The three processes of ATP production include glycolysis, the tricarboxylic acid cycle, and oxidative phosphorylation. In eukaryotic cells the latter two processes occur within mitochondria.
What is the process of cell division?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
What are the two cellular processes?
The two cellular processes illustrated by the test tubes are cellular respiration and photosynthesis. During cellular respiration, the reactants—glucose (sugar) and oxygen—combine together to form new products: carbon dioxide molecules and water molecules.
What four cellular processes do all living cells need energy for?
Living organisms must take in energy via food, nutrients, or sunlight in order to carry out cellular processes. The transport, synthesis, and breakdown of nutrients and molecules in a cell require the use of energy.
What makes food in a cell?
Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae.
Where do we get the fuel for cellular respiration?
During glycolysis, a glucose molecule is cleaved in two, creating two pyruvate molecules and the energy molecule, ATP. The pyruvate molecules are shuttled quickly into the mitochondria, where they are used in the remainder of the respiration process. The glucose molecule is the primary fuel for cellular respiration.
What is the cellular respiration formula?
Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O.
What are the three steps of cellular respiration and where do they occur?
Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
What is the fuel for aerobic respiration?
Definition. Aerobic respiration is the process by which organisms use oxygen to turn fuel, such as fats and sugars, into chemical energy. In contrast, anaerobic respiration does not use oxygen.
What is the process of aerobic respiration?
Aerobic respiration is the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. Aerobic respiration is the process of breaking down the food that comes into a cell using oxygen to help power that process.
What are the three main stages of aerobic cellular respiration?
Aerobic respiration is divided into three main stages: Glycolysis, Citric acid cycle and Electron transport chain. Glycolysis: Glucose ( 6 carbon atoms) is split into 2 molecules of glyceraldehyde phosphate (3 carbon each), then these are turned into pyruvate (3 carbons each).
How do you detect aerobic respiration?
Glucose is oxidised to release its energy.
- The word equation for aerobic respiration is:
- glucose + oxygen → carbon dioxide + water + energy released.
- You need to be able to recognise the chemical symbols:
- Respiration is a series of reactions, but this summarises the overall process.
Is aerobic respiration exothermic?
Respiration is an exothermic reaction (releases energy) that supplies all the energy needed by living organisms. The reaction can be aerobic (with oxygen) or anaerobic (without oxygen).
Where does aerobic respiration occur?
Aerobic vs anaerobic respiration
| Aerobic | Anaerobic | |
|---|---|---|
| Location | Cytoplasm (glycolysis) and mitochondria | Cytoplasm |
| Stages | Glycolysis (anaerobic), Krebs cycle, oxidative phosphorylation | Glycolysis, fermentation |
| ATP produced | Large amount (36 ATP) | Small amount (2 ATP) |
What is difference between aerobic and anaerobic respiration?
There are two types of Respiration: Aerobic Respiration — Takes place in the presence of oxygen. Anaerobic Respiration –Takes place in the absence of oxygen.
What is an example of aerobic respiration?
When the breakdown of glucose food occurs with the use of oxygen ,it is called aerobic respiration. Glucose___oxygen _____co2 +water + energy. For example -Human ,dogs ,cats and all the animals and birds ,insects ,grasshopper etc many more and most of the plants carry out aerobic respiration by using oxygen of air.
What are the two types of anaerobic respiration?
Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.
What are 3 differences between aerobic and anaerobic respiration?
In those steps the by-product of the initial anaerobic glycolysis step is oxidized to provide carbon dioxide, water, and plenty of energy-wealthy ATP molecules….
| Aerobic Respiration | Anaerobic Respiration |
|---|---|
| Glucose breaks down into carbon dioxide and water. | Glucose breaks down into ethyl alcohol, carbon dioxide, and energy. |