Eukaryote

All living things share eight common characteristics, they all contain the molecule DNA, they grow and develop over time, they are able to respond to their environment, they are able to reproduce in one of two ways, they can maintain a stable internal environment, they can collect and use materials and energy, they are made up of cells, and all living things evolve. The first shared characteristic is the molecule DNA. This is where information about an organism is stored, such as the growth,…

3.1 1. The improvements in the microscope help scientists see the cells better and distinguish the different organelles inside the cell. 2. Prokaryotic cells do not have a nucleus and most internal structures that eukaryotic cells. 3. This method builds on the work of early scientists by changing the soup broth with bacteria in it to a preserved petri dish. 4. Both cells and atoms are basic building blocks. 5. This poison would not kill bacteria because bacteria do not have a nucleus. 3.2 1.…

Mitosis and meiosis are forms of cell division that produce daughter cells containing genetic information from the parent cell. Mitosis is the division of the genetic material in the nucleus which is immediately followed by cytokinesis. On the other hand, meiosis occurs in sexually reproducing organisms and this type of cell division reduces the sets of chromosomes from two to one in gametes. Both mitosis and meiosis differ, however, both processes result in daughter cells forming. In the end of…

3 Chromosomes are thread-like structures which consist of DNA and other proteins. Chromosomes are present in every cell of the human body so that information can be carried for that cell to develop. The human body normally consists of 46 chromosomes which then can be paired into 23 pairs. 22 pairs of chromosomes are similar in both males and females which are commonly known as autosomes. However, the 22nd chromosomes (X and Y) are different as these are the sex chromosomes. The human cell can…

Endosymbiotic theory states that organelles were once prokaryotic cells, living as a part larger cells. The prokaryotic cells may initially have been parasites or an intended meal for the cell. Whatever the cause, those prokaryotes would soon become cooperative prisoners. The prokaryotic cells would soon provide crucial nutrients or even to maximize oxygen usage for transforming energy. The prokaryotic cells, in return, would get protection and a constant environment to live. A lot of evidence…

Introduction As more and more UVB radiation is coming into contact with the Earth’s surface, it’s important to consider how life on this planet is impacted. Plants have survived throughout many of the climate fluctuations Earth has gone through previously, but changes of this magnitude have never been seen before. Scientists are currently looking to observe just how much radiation plants can tolerate in response to the continual climates changes on Earth. This issue is relevant to the general…

Monascus Pigment: A Versatile Fungal Pigment Introduction Pigments is defined as a organic compounds that give a characteristic color to plant or animal tissues and is involved in critical processes. Chlorophyll in plant (photosynthesis) and hemoglobin present in Red blood cells (oxygen transportation) are examples of pigment. Variety of color pigments produced by organisms is also known as biological pigment or bichromes. Pigments from plants and animals have been obtaining since long…

The Structure and Function of Monomeric Actin Caroline Lussier The Protein Data Bank is a free, updated archive and resource containing information about the structure of macromolecules including proteins and nucleic acids. This material allows users to better understand and compare the building blocks of life. More specifically, this database can help users to draw conclusions about how large molecule conformations help to determine the direction of drug development. The Protein Data Bank has…

This study set out to demonstrate that bioluminescence in Motyxia evolved in a common ancestor and grew brighter through evolutionary time. How did they do this? Existing research had already demonstrated that 10 discovered species of Motyxia had different levels of bioluminescence. By measuring the variance in the brightness between species, the authors of the study attempted to gain an insight into how their bioluminescence evolved. An experiment was set up to measure the brightness of each…

Many things live in your mouth. Bacteria live in it. You ask, “What kinds of bacteria? Why can’t we sense it? Is it good or bad?” Be brave, take a reading adventure and find out answers to all these questions, and more. How much bacteria exactly? A lot of bacteria live in your mouth, colonies, and colonies. About 6 billion live in your mouth. That’s interesting because about 7.3 billion people live on earth. All those bacteria that live in your mouth actually live in diverse communities,…