Nt1310 Unit 3 Lab Questions

Organelles as organism is from The Lives of a cell authored by Lewis Thomas. Thomas uses a unique writing style that is very recognizable and different from the others. This helps us to appreciate our diversity as human beings demonstrated by our abilities to write differently. As a reader one is able to form an image of who Thomas is by how he expresses his feelings and attitudes. When this text was written a lot of people, mostly scientists, thought and had knowledge of different things than they do now.

Task 1 (B) When Robin Hooke in 1665 first observed a cell under a basic microscope, he was unsure of the function of these cells. Hooke couldn’t see any indication of any main cellular organelles that we now know to exist within each individual cell. Due to advances in technology and ever evolving research, it is now widely evident that cells are fundamental to life. Each cell has a series of cell organelles and each of these organelles has a structure and function within the cell. Animal cells and plant cells have mutual organelles, although plant cells have organelles that animal cells do not have.

In the next page we begin to describe the daily functions of a cell and start to introduce the cell cycle. Page five demonstrates how cells or the citizens of the kingdom contribute in many ways. For example, making food for the Kingdom exemplifies the ribosomes of the cell creating proteins and the protecting of John imitates the functions of the cell membrane. After explaining the purpose of cells we describe the checkpoints of interphase using

The cell wall gives the cell structure and so do the beams of the stadium. 3. Mitochondria - The mitochondria in a cell is like the crowd at a baseball game. The mitochondria gives the cell energy just like the crowd does at a baseball game. The crowd gets the players pumped up by cheering and yelling.

Activity 1 Increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels because it caused to decrease in the concentration gradient. Increasing extracellular K+ causes the membrane potential to change to a less negative value because extracellular K+ is increasing, which it will cause intracellular K+ to be less. A change in extracellular Na+ did not alter the membrane potential in the resting neuron because there are a lot of K+ leak channels than Na+ leak channels The relative permeability of the membrane to Na+ and K+ in a resting neuron is that Na+ leak channel is less, but K+ leak channels has more so the membrane become less permeable to Na+.

Lab 7: Moon Phases was designed to measure the relative position of the Sun and Moon over the course of one phase cycle (i.e. one month, 29.5 days) The idea for Lab 7: Moon Phases was to examine how the illumination of the moon by the Sun produces the different phase cycles we see as the Moon rotates around Earth and as the Earth rotates around the Sun. The observations of the Moon were taken on four different days in the month of February to March capturing four different Moon Phases.

4.) I noticed that there is a relationship between the ionic radius and the atomic number of the representative elements in Group 1A. The higher the atomic number, the bigger the ionic radius is. So, while hydrogen has an atomic number of 1 and Francium has an atomic number of 87, it is safe to assume that FR has a higher ionic radius. This is true; the ionic radius for Hydrogen is 0.012, and for Francium, it is 0.194.

1. Describe the study design (is it correlational, experimental, survey research, etc.). The study is Level 3, experimental. The participants are within subject design experiences because since the subjects were divided into two groups by gender.

1. Identify the range of senses involved in communication • Sight (visual communication), Touch (tactile communication), Taste, Hearing (auditory communication), Smell (olfactory communication) 2. Identify the limited range of wavelengths and named parts of the electromagnetic spectrum detected by humans and compare this range with those of THREE other named vertebrates and TWO named invertebrates. Figure 1: the electromagnetic spectrum source: www.ces.fau.edu Vertebrates Human Japanese Dace Fish Rattlesnake Zebra Finch Part of electromagnetic spectrum detected ROYGBV (visible light) detected by light sensitive cells in the eye called rods and cones.

The invention of Microscope could be defined as one of the most important inventions for the survival of human race. During the 1590 's, two Dutch spectacle makers, Zacharias Jansen and his father Hans started experimenting with lenses. They put several lenses in a tube and made a very important discovery. The object near the end of the tube appeared to be greatly enlarged, much larger than any simple magnifying glass could achieve by itself.

Once, the current rating and voltage rating are chosen, one needs to look at the data sheet of the connector to check whether it meets the given specifications. In the datasheet, one should look at the test procedure used to arrive at the specifications and check whether it meets the test standard. Not everyone uses the same testing criteria, so ensure you understand how these specifications were derived. It should also be confirmed that the contact will support the conductor size that has been chosen. A non-compatible conductor could cause overheating issues, leading to premature connector failure.

Biology is the scientific study of life as defined in Essential Biology with Physiology. Through the study of life one will strive to see what organisms are made up of. Organisms are made up of cells. One cell of cells are the eukaryotic cell which make up most of an organism.

One for example, is Pure and Applied science. Applied science is demonstrated when Tsien uses fluorescent protein to analyze changes in cells. Using this method, he was able to create a way to identify different types of cells; even recognize cancerous ones. His scientific discovery exemplifies applied science due to the use of knowledge to create a system or technology to differentiate cells and their properties. Pure science is indicated when the author mentions Sir George Gabriel and his discoveries.

The lens is used to make focusing adjustments. Who invented the microscope? How did it get invented? The microscope is one of the most important discoveries through the history, because of the improved understanding about the human body, it gave.

I’ll be discussing stem cells and issues concerning stem cell research and use in the following paragraphs. Stem cells are undifferentiated cells that have the amazing ability to become other cells. This means that a stem cell has the ability to become any type of cell in the body. For example if a person has a heart attack leading to heart damage, stem cells can be used to create new heart