because they are formed by head to tail condensation of polar monomers. Making Glucose: Green plants manufacture glucose through a process that requires light‚ known as photosynthesis. This process takes place in the leaf chloroplasts. Carbon dioxide and water molecules enter a sequence of chemical reactions within the chloroplasts. The end products of these reactions are glucose and oxygen gas‚ which is released into the air. Glucose is used by the plant‚ with much of it being converted into other
Premium DNA
have a higher stomatal index (/density) than those taken from the centre of a shrub this are due to light levels. Explanation: Plants have stomata to obtain carbon dioxide from the atmosphere and remove oxygen produced in photosynthesis. During photosynthesis the chloroplasts in the leaf cells synthesize as a result of exposure to light‚ while oxygen is produced as a by-product. As the outer leafs are exposed to higher light levels the stomatal density has to be high and because the inner leaves
Premium Leaf Photosynthesis Plant physiology
The theorized course by which prokaryotes paved the way to the first eukaryotic cells is known as endosymbiosis. The Endosymbiosis theory attempts to explain the origins of eukaryotic cell organelles such as mitochondria in animals and fungi and chloroplasts in plants. Endo means “within” and symbiosis is a type of “cooperation”. An early primitive heterotrophic prokaryotic cell engulfed an ancient auto-trophic bacterium and used its function to facilitate the creation of energy for the host cell.
Premium Eukaryote Bacteria Organelle
is a watery jelly-like liquid- cytoplasm Name the parts of plant cells that: that controls the movement of materials into and out of the cell- cell membrane in which photosynthesis takes place- chloroplasts that forms the skeleton of the plant- cell wall Name the process in which plants manufacture their food. Photosynthesis List three specialised cell types found in plants. Explain Guard cells- are found on the leaves and stems of plants. Guard cells work in pairs to open and close very tiny
Premium Cell Blood
All living things have evolved into three groups‚ or domains‚ of closely related organisms: Archaea‚ Bacteria‚ and Eukaryota. Archaea and Bacteria are small‚ simple cells surrounded by a membrane and a cell wall‚ with a circular strand of DNA containing their genes. They do not contain a nucleus or other internal structures that higher cells may have. These are called prokaryotes. Basically all the life you see today‚ including plants and animals‚ belongs to the third domain‚ Eukaryota. Eukaryotic
Premium Bacteria Eukaryote Cell
amylase anus autotrophic autotrophs bile bile duct bolus carnivores cellular respiration chloroplasts chyme colon cystic fibrosis digestion digestive system duodenum emulsification enzymes faeces foregut fermenters gall bladder gastric juice herbivores heterotrophic heterotrophs hindgut fermenters ileum jejunum lacteals large intestine liver mucus oesophagus omnivores pancreas pepsin peristalsis photosynthesis prey pyloric sphincter rectum ruminants SA:V ratio small intestine spawning stomach villi
Premium Digestion
plants Chlorophyll is a green pigment found in the cyanobacteria and the chloroplasts of algae and plants. Chlorophyll is an extremely important biomolecule critical in photosynthesis‚ allowing plants to absorb energy from lights. Chlorophyll is present in specialised cells within plants and many algae‚ when sunlight is present‚ chlorophyll combines it with water and carbon dioxide and creates energy through photosynthesis‚ a bi-product of which is oxygen. Organism that can photosynthesise are called
Premium Photosynthesis Plant Chlorophyll
Biology Major substances: Organic compounds – are compounds that contain carbon and were originally made by living things e.g. carbohydrates‚ lipids‚ proteins‚ nucleic acids Inorganic compounds – are compounds do not contain carbon as a main element Organic compounds | Composition | Function | Proteins | Carbon‚ hydrogen‚ oxygen and nitrogen | Used in the structure‚ storage‚ movement and transport of cells for growth and repair. | Lipids | Carbon‚ hydrogen and oxygen | Stores energy
Premium Metabolism Oxygen Carbon
matrix. Each of these serve a special job and without these‚ mitochondrion couldn’t make the energy that the cell needs. Mitochondrion and chloroplast are the only organelles that are surrounded by two membranes. These two organelles complete each other in other ways too – chloroplasts use carbon dioxide and food to produce oxygen and sugar by photosynthesis and mitochondria use oxygen and sugar to produce carbon dioxide‚ water and energy by cellular respiration. The outer membrane is like the customs
Premium Cell DNA Organelle
of as MM in which a rock like layer of sand or precipitated minerals are present Round rock structures rarely contain fossilized microbial mats that were deposited >3 billion yrs ago Foss ilized- purple sulfur bacteria‚ proof of anoxygenic photosynthesis‚ oxidation of H2S‚ elemental sulfur‚ in rocks >3.2 billion yrs ago Contemporary- green algae‚ cyanobacteria‚ found in hypersaline lakes and high saline levels ex. Shark Bay
Premium Bacteria DNA Organism