Lysosomes- Lysosomes are coined as the “suicide bag” of the cell. These structures are responsible for hydrolizing different macromolecules as well as intracellular digestion. The lysosome also recycles the cell’s organelles and some macromolecules which leads to the renewal of the cell. In a process called apopstosis, cells are destroyed.
1. Cell Membrane - A cell membrane in a cell is like the turnstiles and gates of a baseball stadium. The cell membrane is selectively permeable and the turnstiles or gate only let people with a ticket into the stadium 2. Cell Wall - The cell wall in a cell is just like the support beams of a baseball stadium.
Rationale The cell membrane, also called the plasma membrane is found in all cells and separates the extracellular side of the cell from the cytosolic side (Cell membrane (plasma membrane), 2023). The purpose of the cell membrane is to communicate with the cell’s external environment, to contain the cell’s contents and to control the transport of molecules in and out of the cell. Diffusion is the passive movement of molecules from an area of high to low concentration.
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.
Cytoplasm is a specially organized solution of salt, nutrients, and complex molecules in water. The composition of cytoplasm may vary among different types of cells, but its purpose is the same – it provides a medium in which complex reactions can occur. For complex reactions to occur, cells need a source of energy.
endocytosis- When larger molecules are able to enter the cell. 15. Energy-is what causes objects to carry out their tasks. 16. energy
Biology, the study of life and living organisms, is complex and encompasses a multitude of theories and ideas. In AP Biology, the first unit covered was evolution. Chapters 29, 31, 39, 40, 41, 42, and 43 in the textbook, Campbell’s Biology in Focus, not only discusses the four main ideas of biology: evolution, energy, information, and systems, but it also gives examples of each in order to help guide the reader’s understanding of the concepts. The first big idea of AP Biology is: “the process of evolution drives the diversity and unity of life.” Chapter 39 in the textbook encompasses this main idea through discussing natural selection and genetic diversity.
Dayma Padron Explain how the structure of the plasma membrane influences the movement of oxygen (O2), carbon dioxide (CO2) and sodium ions (Na+). The cells looks like tiny and insecure organisms in our body, but the reality is that without its perfect cellular organization, and essential functions, our body will be fragile, and we would live a short life. The plasma membrane, which is the wall of the cells, are composed of half lipids and half proteins, and about 5 to 10 percent of carbohydrates (Cooper, 2000). The membrane form a phospholipid bilayer, with fluid texture (cytoplasm), and acts like a barrier to protect its components from the outside neighbors, receptor, control mobility, maintain shape, and ensure that every part perform its
Proteins are able to transport molecules such as oxygen, keep our immune system strong and transport messages from cell to cell. This information was sourced
The cell membrane regulates the deoxyribonucleic acid, enzymes, and it builds a pathways for any reaction such as metabolic. When waste products are present the cell membrane gets rid of it and the cell membrane allows important things inside . A great example of what the cell membrane allows in or out is water and oxygen. Specific molecules are only made to enter the cell which is also called semipermeable. Molecules can be passed by active transport or either passive transport.
The principal objective of this study was to understand how cell membranes are able to store pigments in their intracellular compartments which then prevents the pigments from entering the general cytoplasm using different concentrations of a solution which in this case was detergent (Huber, et al., 2018).Several slices of Beetroot were immersed in water and three different concentrations of Tween 20.It was then hypothesized that Higher concentrations of Tween 20 will increase the cell membrane permeability of Beetroot. The results were not consistent with the hypothesis and it was shown that with different concentrations of the detergent (Tween 20), the cell membrane permeability increased in the control and then followed the hypothesis pattern in the other concentration of the
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
but I didn’t expect us to have this many cells in our body. What I found to be so fascinating is with the amount of cells we have in our bodies we would be able to rotate around earth almost nineteen times. Then it came across my mind if we have all these cells in our body what ensures the safety of them and how do the cells get from one location to another with no disruptions. The reason that the cells are protect is because of the cell membrane. The structure of the cell membrane is crucial to the life of a cell.
Task 2 Explain why transport systems are important in the body? The single-celled organisms that are small have a larger surface area to volume ratio, therefore they can receive substances by diffusion from the large plasma membrane which they have. The substances can diffuse at only short range distance in order for it to diffuse at a faster rate to meet the organism’s needs.
All of these organ systems need to help to make up the
