a) Using a human cell of your choice‚ describe how organelles work together to make and secrete a protein (LO1. AC 1.1) An epithelial cell in the thyroid gland‚ called a thyrocyte forms spherical follicles that produce a protein called thyroglobulin. This is a globular protein that has a functional role in metabolism. The protein is used by the thyroid gland to produce thyroid hormones; thyroxine (T4) is an example of one of the hormones created. Thyroxine is formed by iodine binding to tyrosine
Premium Thyroid hormone Thyroid Endocrine system
Cell Phones Might Cause Cancer I remember the first time my grandfather told me he had cancer. My assumption was that it was all health related. Yet I learned that it was also caused by the usage of electronic devices. I was shocked and surprised of this news. Will this start to affect the future of my generation? It seems like everyone is on some type of electronic device everywhere you look.. Cell phones first became widely available in the United States in the 1990s. Ever since then the use
Premium Mobile phone Radio
Chemistry 02 Oct 2014 Flame Test Lab Purpose: To find out the unknown compound from known compounds and the color of the flame. Safety & Precautions: •Do not cross contaminate compounds. •Keep goggles on at all times when working on lab. •Long hair should be tied up to avoid being singed. Table of Observations Compound Flame Color Strontium Chloride strong dark orange red Strontium Nitrate bright orange Copper
Premium Chemistry Potassium Hydrogen
Lab 3 Exercise 3.1: Installing the DHCP Server Role‚ Questions 1-3. Question 1: What is the name of the computer you are working from? The Name of the computer is W2K8xx Question 2: What is the Default lease duration of a wired subnet type? Wired less duration will be 8 days Question 3: What are 3 recommendations listed in Server Manager for managing the DHCP Server role? 1. Increase fault tolerance by splitting DHCP scopes 2. Eliminate manual updates of DNS records by configuring dynamic
Premium IP address Dynamic Host Configuration Protocol Subnetwork
ACTIVITY 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. __The size and the concentration. ___ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __ The molecules were to large to go through. My results matched._ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your
Free Diffusion Molecular diffusion Osmosis
Cell Biology Oct.3/14 Cell Cycle part 3: Apoptosis 2 Main ways cells will die: apoptosis is regulated‚ nacrosis is an “explosion” Apoptosis Part of controling number of cells. Importance in balance.“Programmed cell death” – important because if the cell isn’t intact you don’t want cell to divide and keep mutations going‚ to avoid inflammatory response (caused by cells that exploded/necrosis).. ect. Necrosis is triggered by something unplanned‚ leading to decrease ATP‚ pumps‚ atpase activity
Premium Cancer Gene DNA
Diffusion in Cells Isabel Zak Question: How does the size of a cell affect the distribution of chemicals throughout the cell? Hypothesis: The larger the cell is‚ the more difficult it will be for the chemicals to reach the centre of the cell‚ and diffuse throughout it. This is because there will be a higher surface-area to volume ratio in the larger cells‚ making the centre of the cells further away from the surface. Therefore‚ when dipped in sodium hydroxide‚ the larger cells will not be
Premium Diffusion Osmosis Surface area
Frantzy Senat Lab 2.2 Question 1 Which administrative user accounts can create a site? Contos/DomAdmin‚ contoso\EntAdmin‚ emea\EntAdmin‚ d. In the child domain‚ attempt to create a unique user account. Record the names of the accounts that can be used to create new users. Contoso\EntAdmins‚ emea\domadmin‚ & emea\entadmin d. Log off and log on as the EntAdmin user. Repeat steps 4b through 4c to determine whether the EntAdmin user has the ability to view and/or modify the schema. Contoso\schadmin
Premium Login User Luser
GS104 Lab Report Experiment # 2 Data Collection David Case: January 23‚ 2015 Experiment #2 Data Collection Objectives: Exercise 1: Formulating a Hypothesis about pitching speed. To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion. Materials: Volley
Premium Acceleration Velocity Baseball
Lab #28 Conservation of Mass Ashleigh Bublinec Serena Contreras
Premium Chemistry Oxygen Hydrogen