Cell Membranes Lab Report

A cell is similar to a Prison. The parts within a Prison have almost all the same factors of a cell, because for example the cell wall of a plant cell has the exact same properties, the cell wall protects the cell from intruders or anything that can harm anything from the inside. The prison fence does exactly the same thing, it protects anything in the inside and keeps intruders out. A Cell Membrane is like the wall of the prison, the Cell Membrane keeps everything in place and keeps all organelles in the cell. The prison relates to this because the walls are meant to keep the prisoners in the prison.

The head of the phospholipid faces towards the water inside/outside of the cell. The middle layer of the membrane consists of the hydrophobic region. They form the lipid tails and they hate water. Since lipids and water does not mix well together, the middle of the phospholipid bilayer does not allow water to go inside. 2.

A cell is like the white house,It has many areas that work differently and have their own job’s to do just like a cell itself . The gates of the white house can be known as the cell wall because the gates surround the white house protecting it from bad things or people who shouldn’t go into the area or premassis. There are people who make things such as clothing or tools inside the white house so this area can act as the smooth endoplasmic reticulum,as for the rough endoplasmic reticulum,the doors can be referred to this because the doors only let certain people into the white house such as the president and his family,the security guard’s because they need to protect the area from bad people and the senators to discuss their work.

Assignment unit 3 1. Unlike prokaryotic cells, eukaryotic cells have: 1) a membrane-bound nucleus; 2) numerous membrane-bound organelles such as the endoplasmic reticulum, Golgi apparatus, chloroplasts, mitochondria, and others; and 3) several, rod-shaped chromosomes. Because a eukaryotic cell’s nucleus is surrounded by a membrane, it is often said to have a “true nucleus.” The word “organelle” means “little organ,” and, as already mentioned, organelles have specialized cellular functions, just as the organs of your body have specialized functions. At this point, it should be clear to you that eukaryotic cells have a more complex structure than prokaryotic cells. Organelles allow different functions to be compartmentalized in different areas

Our cells work together every single hour, minute, and second of our lifetimes to make sure that our bodies are functioning properly, and have the necessary parts that allow for the transport of molecules, substances, and other important chemicals. Each cell is surrounded by a cell membrane, one of the most critically important structures in our body, which protects our cells, maintains homeostasis by controlling transport in and out of the cell, and allows for intercellular communication and signalling. The cell membrane is comprised of several parts that each coincide to aid in the functions it is responsible for, including specific transport proteins, receptors, and channels that are designed to enable various substances necessary for

Imagine for a moment that you are looking through a microscope and you are seeing some tiny cells moving around in a liquid. You can distinguish one cell from another because each one has a very well defined limit: a membrane (the outer skin of the cell). > **For a cell, its membrane is its Boundary. ** If the membrane of a cell is punctured, the cell is badly damage or ceases to exist.

Intracellular and extracellular are the 2 major fluid compartments in the body. Extracellular contains intravascular and interstitial body parts. The intracellular compartment is known as the fluid inside of the cell. Extracellular is fluid outside of the cell which consists of the Intravascular which is the fluid located in the vessel and interstitial which is fluid between the vessel and the cell. Each compartment encompasses a certain amount of fluid proportionate for the size of one’s body and the size of the compartment.

A plant cell also has organelles. Finally, a hallway compares to a plant cell by the reason of that they both are in the shape of a

In a cell, the purpose of the cell membrane is to protect the cell’s content from viruses and other harmful things . This can be compared to the Drills in a school such as an indoor and outdoor lockdown, like a cell protecting against viruses. The other drills also would make sense, due to the cell membrane protecting other things than viruses. Another organelle that can be compared

The vacuoles serves as the storage room for the cell and endoplasmic reticulum is the conveyor belt that moves materials around the cell. 2. How are plant and animal cells similar? How are they different? Explain.

Explain the role of cell membranes as a highly selective barrier (passive and active transport). (Florida Department of Education, 2008) The focus of this lesson will be on active transport.

This organelle can be found both on the rough ER and free in cytoplasm, but the proteins produced in each place have different functions; proteins produced in the cytoplasm are typically used within the cell while proteins produced by the rough ER are usually exported outside the cell. The ribosomes themselves are produced in nucleolus and cells that need a lot of protein have a lot of ribosomes [34]. With larger diameters than microfilaments, microtubules are stiff organelles that help maintain the cell 's shape as part of the cytoskeleton. The cytoskeleton is the structure within the cytoplasm of the cell that helps move organelles inside the cell, therefore microtubules are attributed with the function of intracellular movement [35]. In addition to the cytoskeleton, microtubules also make up the cilia and flagella of the cell.

13. The active transport of K+ allows for proteins to be transported and also the transportation of K+ is very important because it helps create ATP. There needs to be a constant flow of K+ and proteins being transported in order to make ATP. 14. Even though prokaryotes are smaller than eukaryotes they are still important because they contain molecules that are necessary for conducting metabolic activities.

These types of cells are huge and have distinct organelles. A prokaryotic cell has a simple structure and is regularly much smaller than eukaryotic. The prokaryotic cell does not have any membrane-bound organelles. Eukaryotic cells have mitochondria whereas prokaryotic cells have none. The mitochondria in a eukaryotic cell is the site of cellular respiration where glucose is converted into ATP to produce the energy for everywhere in the cell.

-Organelles were visible (A dark nucleus in the cells and a thick cell membrane around the cells) -Veins through the onion skin are visible -Cells underneath the top layer were slightly visible -Water droplets -A small dark cell in the middle of the field of view -A few other dark spots in the field of view -Iodine turned the colour of the field of view brownish-orange -Other than those dark cells, a blank slide 100x - Bigger image of cells stacked on top of each other -Cells had a more definite shape -Large onion vein -Had a dark nucleus -A closer view of the dark cell in the middle (bigger, completely dark) -A few lighter cells around the field of view -No organelles visible in the main cell (in the middle) 400x -A large nucleus in the field of view -Close view of the cell membrane -Small dark organelles in the gel-like substance in the cell -The dark cell in the centre is completely dark -No organelles visible in the main cell -No other cells visible around the main cell