Vesicle

Chitin is a linear polysaccharide, with β-(1-4)-linked N-acetyl-D-glucosamine. Found in the exoskeletons of crustaceans (crab, shrimp, lobster, insects) & molluscs, as well as the cell walls of algae and fungi, chitin is the second-most naturally abundant polysaccharide after cellulose [1, 2]. Chitin occurs naturally in the polymorphic forms: α, β and γ. The α-polymorphic form of chitin is the most abundant in nature, present in the strong exoskeleton of crustaceans [6]. α-Chitin forms tightly…

Sarah Diaz Dr. Basu Bio 572 My Favorite gene One of my favorite genes that I have had the pleasure of working with is known as PROMININ-1, or PROM-1. One of the reasons why it exists as my favorite gene, is because the research lab that I am interning at studies this gene and its role in a very well known and unfortunate disease, biliary atresia. It also is one my favorites due to the fact that it has a lot of potential applications in studying other diseases or further research. These…

Shore came from the Mid-Continent Rift. There has been many different basalt lava flows in the North Shore. In Two Harbors, the basalt that would have been on the top of the lava flow is littered with amygdules. An amygdule is just a gas bubble or vesicle that has been filled with minerals. The basalt under the amygdaloidal basalt formed at the bottom of the lava flow because it doesn’t have any amygdules. In Gooseberry Falls, the amygdaloidal basalt is at the bottom of the falls and the…

Calcium ions are vital for cellular signalling, as once they enter the cytoplasm they use allosteric effects caused by indirect transduction pathways such as G protein-coupled receptors. Calcium signalling is cause by gradients across the plasma membrane, as the resting concentration of Ca2+ in the cytoplasm is normally kept ˷100 nM, compared to the extracellular concentration which is ˷1.5mM. To continue low concentration within the cell, Ca2+ signals can be generated either from extracellular…

Introduction On September 12, and October 3, 2016, we stopped at 6 locations north of Northampton in the Deerfield Basin of the Connecticut River Valley (Figure 1). The purpose of these stops is to examine rocks, interpret depositional environments for each rock formation, and discuss the geologic history of the Deerfield Basin based on observations and interpretations. Early Mesozoic lithospheric extension led to the development of a long sequence of rift basins. The Deerfield basin is the…

A positive finding from his dissections was that Galen was able to determine that arteries and veins existed. His findings determined that arteries and veins consisted of separate vesicles that contained and transported blood throughout the circulatory system. His observations that arteries contained blood changed the belief that arteries contained air, which was held for over . A positive attribution to the validity of his findings…

Adolescence, per the Merriam-Webster dictionary defines it as the state or process of growing up, the period of life from puberty to maturity terminating legally at the age of majority, a stage of development prior to maturity. It is known as the developmental stage that lies between childhood and adulthood. One is no longer considered a child, but not yet an adult. Dr. Neil K. Kaneshiro of the University Of Washington School Of Medicine says in this stage, “children develop the ability to…

Methamphetamine and its Effects on the Body and Brain Methamphetamine (n-methyl-1-phenyl-propan-2-amine) has a molecular weight of 149.237 g/mol and is an addictive man-made stimulant affecting the central nervous system (Methamphetamines: An Overview, n.d.). There are two different types of methamphetamine: l-meth (Levo-methamphetamine), and d-meth (Dextro-methamphetamine), which is the more common form. It is 2 to 10 times as physiologically active as l-meth (Crystal Meth Facts, n.d.).…

This experiment utilized a series of small explosions to determine the structure of the upper kilometre of the lunar crust by measuring the seismic waves with a series of geophones. Schmitt and Cernan noticed that the subfloor was vesicular, with vesicles that were about one centimeter. As Schmitt was trying to collect a rock, he accidentally kicked it off and joked about how this happened often. After they got off the rover, they sarcastically made comments about checking the oil, transmission,…

Sex and The Brain: Neurophysiological Structures and Functions Much research has been conducted on the topic of sex in recent years due to the lack of research and explanation given to it. Schools, religions, and parental figures have all done much to prevent youth to experience these types of physical activities. Lectures about abstinence have hidden the reality of sex by telling people about STD’s and sinful natures, which is necessary in their own respect but not a worthy conclusion to the…