Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Diffusion is the movement of molecules (gas, minerals and particles) from an area of higher concentration to an area of lower concentration. Diffusion is an important process that occurs within the cells of plants and animals. One example of diffusion is the exchange of oxygen and carbon dioxide during respiration. When we breathe in oxygen there is a higher concentration of oxygen in our lungs than in our circulating red blood cells, so oxygen diffuses across cell membranes from our lungs into our blood vessels and into our red blood cells to be distributed throughout our body. The reverse happens with carbon dioxide that we exhale. The carbon dioxide is more concentrated in our red blood cells (carbon dioxide is a by-product of cellular respiration - which we will study next) and is diffused into the lungs (lower concentration) and then we exhale releasing carbon dioxide into the environment. This carbon dioxide is taken in by plants to be used in photosynthesis.Another example of diffusion is when nutrients are taken into a plant. Plants utilize nutrients to grow and live and these nutrients are obtained by diffusion. Since nutrients are more concentrated in the soil around the roots, they diffuse into the roots and are carried throughout the plant to the various cells.Materials needed: 1 tube of food coloring (darker colors work best, but any color will do)1 large, clear drinking glass or similar containerWater (from your faucet)Procedure:1. Fill glass container almost to the top with cold water.2. Drop 3-4 drops of food coloring into the water.3. Observe for 2-3 minutes - taking photos to record the progress.4. Record your observations. How do you think diffusion helps nutrients, waste and other molecules move around the cell?
which of the following is not one of the urinary systems functions.
The E. coli gene lacYencodes a protein called lactose permease, Reversion, Intragenic suppressor, Intergenic suppressor, Missense mutation
1.The Enterotube quickly and conveniently performs a series of twelve different biochemical test. The test Eschericia Coli needs to be researched and describe the procedure for performing it if you are not using an Enterotube.
Since it takes 40 min. to replicate the E. coli chromosome, how can the cell have a cell cycle of 35 minutes?
Discover a protein that is released from the cell and explain its role in the body. What is the function of the protein? How is it related to exocytosis?
Doctors suggests that early detection is crucial for breast cancers that appear earlier inlife, even as young as twenty years of age
What is the main purpose of the light-dependent reactions of photosynthesis?
If a transcription factor causes DNA to bend, altering its structure by initiating a loop-like conformation, does this affect its electrophoretic mobility on a gel? If so, would the DNA:protein complex migrate at a slow rate?
Discuss how do you counter the same person who says that if the process does occur in nature, there is no such thing as natural selection, but it requires a designer to carry out those specific steps?
You perform a forward genetic screen to look for Arabidopsis thaliana mutants that are altered in cold stress responses. You find two mutants with opposite phenotypes.
In gel filtration chromatography under native cconditions, a protein of interest elutes with a molecular weight between five hundred and 550 kDA.
What are the benefits of using preventive antibiotics? Should the animal husbandry practice of repeated dosing of healthy animals with antibiotics stop?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd