Organelle

Relationship between cells Cells contain organelles these are the basis of a cell it contains many organelles and is basically the same a human these cells are the basic blocks of life cells are microscopic and what makes up tissues. Tissues are visible to the naked eye and are what creates us there are four main types of tissue connective epithelial nervous and muscle. Tissue makes up organs these are the what run us humans and every other living thing these keep them alive and have many…

PROKARYOTIC AND EUKARYOTIC CELLS https://www.google.co.uk/search?q=images+of+prokaryotic+and+eukaryotic+cell&safe=active COMPARISON OF THE STRUCTURE OF EUKARYOTIC AND PROKARYOTIC CELLS STRUCTURE EUKARYOTIC CELL PROKARYOTIC CELL Nucleus Present Absent Cytoplasm Present Present Mitochondria Present Absent Chloroplasts Present Absent Endoplasmic Reticulum Present Absent Ribosomes Relatively large Small Cytoskeleton Present Absent Chromosomes DNA arranged in several DNA arranged in…

Each Rab specifically targets to a membrane compartment and controls several factors, such as protein and lipid composition of the membrane, fusion between distinct compartments, vesicle motility along microtubules, and interaction with the cytoskeleton. The membrane targeting process, as well as specific binding to GDI, requires post-translational isoprenylation (geranylgeranyl moieties) of the two Cys residues at or near the C-terminus of Rab (Chavrier et al., 1991; Ullrich et al., 1993). √…

Some cells are uncomplicated, but others are complex with internal structures called organelles. These cells can be put into two categories which are the prokaryotes and the eukaryotes, and they have many differences and similarities. The prokaryotes derive from prokaryotic cells whose fossils have been in existence for over 3.8 billion years, which mean they have learned to adjust to the earth’s environments more than any other life form. Prokaryotes are the bacteria and their close relatives,…

Structure Mitochondria are small membrane-bound organelles that are usually about 1 – 10 microns in length. They can be spherical or rod-shaped. The mitochondrion is enclosed by two membranes that separate it from the cytosol and the rest of the cell components. The membranes are lipid bilayers with proteins embedded within the layers. The inner membrane is folded to form cristae; this increases the surface area of the membrane and maximizes cellular respiration output. The region between the…

Methods Each trial consisted of isolating the hearts of two mice, aged anywhere between 8-15 weeks, with the strain FVB/NJ of the Mus genus. Eight trials were conducted throughout the duration of the experiment. No female mice were used for any of the trials because because the research in the lab concentrates on males, due to known differences in protein expression among the two sexes. The effect of the VU591 drug on mitochondrial KATP function in wildtype mice was measured by calculating the…

surroundings. It is a permeable membrane that surrounds the cytoplasm. The contents held within the plasma membrane are called cytoplasm. In prokaryotes, or single-celled organisms, it is the only membrane. In eukaryotes, cells that contain a nucleus, the organelles are also surrounded by a plasma membrane. The membrane controls all exchanges between the inside…

In Metaphor and Thought, Hugh Petrie and Rebecca Oshlag argue that “metaphor is one of the central ways of leaping the epistemological chasm between old knowledge and radically new knowledge” (Petrie and Oshlag 583). Scientists compare cognitive domains in order to apply widely “idealized cognitive models” to previously unexplained natural phenomena (Kövecses 173). In absorbing “truly new forms of knowledge and understanding,” learners construct, reject, and accept metaphorical comparisons of…

An organism discovered on the Japanese seashore behaves as a predator and a plant in a bizarre lifecycle that may bring biologists closer to understanding how chloroplasts became part of plant cells, according to a study from the University of Tsukuba. Before understanding how this mysterious single-celled organism works, it had to be given a proper scientific name. Analysis of its cellular structure and genetic profile showed that it is most closely related to organisms assigned to the genus…

The Effect of Lime Juice on a Gummy Bear’s Mass Lab Introduction Objective: In this lab we are going to learn the effect of lime juice on a gummy bear when it is soaked for 24 hours. We will see the effect is has on the mass when it is taken out. Information is Useful: This lab is an example of how cell transport works. The gummy bear is a cell in this case which is placed in a hypotonic solution that is the lime juice. Hyp0tonic solution is a greater concentration of the solute molecules…