Biology Essay

Biology 15 Lab # 4 Professor Passerini September 23, 2015 Scot Albert Lab #4 Questions 1a,b,c, 2, 3a,b,c, 4, 5a,b,c, 7, 11c, d, e, 12a,b ---------------------------------------------------------- 1- a-They are found primarily in the thylakoid membranes. b-No. Cyanobacteria do not have distinct nuclei. c-Gloeocapsa ------------------------------------------------------ 2-They were much smaller by comparison. ------------------------------------------------------- 3- a-I think we…

Interactive Question 7.2 Cite some experimental evidence that indicates that membrane proteins drift. A good form of experimental evidence is Fluorescence Recovery After Photobleaching, aka FRAP. In the FRAP process, membrane proteins are labelled with a green fluorescent protein, and part of the plasma membrane is “bleached” with a laser, causing them to lose their fluorescence. The part that was bleached will eventually become fluorescent again, as molecules drift in by diffusion. How might…

Have you ever been the kid that was intrigued by fish? You knew before anyone else knew that you would eventually become a marine biologist. Marine biologist study organisms in the ocean. What kind of kid knows what they want, and takes steps to make their dream come true? A child that would spend all their time watching “Finding Nemo,” to learn more about fish. Also, one that would hold their breath in a pool, so they could breathe underwater. That kid continuously fantasizes about one day…

Brown University researchers studying the biology of aging demonstrated a new strategy for stimulating autophagy - the process by which cells rebuild themselves by recycling their own worn-out parts. The process of autophagy involves rounding up misfolded proteins and obsolete organelles within a cell into vesicles called autophagosomes. The autophagosomes then fuse with a lysosome, which breaks down the cellular macromolecules and converts them into components the cell can re-use. Louis…

Photosynthesis Photosynthesis is the physico-chemical process by way of which plants, algae and photosynthetic bacteria consume light energy to drive the synthesis of organic compounds. In plants, algae and certain forms of bacteria, the photosynthetic process yields, the release of molecular oxygen and the elimination of carbon dioxide from the atmosphere that is used to produce carbohydrates (oxygenic photosynthesis). Further forms of bacteria use light energy to generate organic compounds…

DNA contains genetic code that primarily directs organelles in a cell to operate in a certain way. DNA also carries information regarding the traits of an organism. These traits are often passed from a parent cell to its offspring. This branch of biology is know as genetics. DNA also possesses a unique structure that allows it to perform all these actions. DNA is composed of hydrogen ,carbon, nitrogen, oxygen, and phosphorus. The monomers that make up nucleic acids are called nucleotides.…

Nutrition is a specialization in biology that examines how nutrients are digested, broken down, absorbed, and used in the body. Foods are composed of nutrients. Nutrients are chemical substances essential for survival because they provide energy and raw materials and support body processes such as growth, maintenance, or repair of tissues. These nutrients include Carbohydrates, lipids, and proteins which are three macromolecules that play important roles in nutrition and digestion. There are two…

Competition, in biology, is the relationship between members of the same or different species in which individuals are adversely affected by those having the same living requirements, such as food or space. It doesn’t necessarily have to be between members, it can be between a human and the human mind. In specific habitats, organisms compete for resources, such as water, nutrients, space, and mates. Each organism has a niche amidst a given region that includes everything the organism needs to…

Reproduction is a vital step in the sustainability of all living things, and the consequences of unsuccessful reproduction can be catastrophic for a species. Therefore, it is not surprising that multiple strategies have evolved over time in order to ensure offspring will be viable and competitive members of a population. One of the basic features of reproductive success is providing offspring an environment with the necessary features for effective development, such as nutrients and water,…

Who’s the better reproducer? With time comes change and with change comes evolution. Organisms are classified into three distinctive groupings: Bacteria, Archea, and Eukarya and the kingdom of plants (Plantae) falls under Eukarya. It could be argued that plants are one of the most valued organisms on Earth. Not only do they provide oxygen for the oxygen dependant organisms, such as mammals through the process of photosynthesis, but, they also provide stable conditions and habitats for other…