The Vesicles Transport Hormones, Enzymes, and Chemicals Essay

processes; they contain specified receptors for external stimuli and are involved in both chemical and electrical signal generation. All membranes contain two basic components: lipids (mainly phospholipids) and proteins. Some membranes also contain carbohydrate. The decomposition of lipid, protein, and carbohydrates vary from one membrane

Insulin, carbon dioxide, and enzymes. The plasma membrane is close to animal cells where the exchange of substances inside and outside of cells revenue a place . Some of the substances have to move between the extracellular fluid outside cells to inside of the cell, and some elements necessity to interchange from inside to the extracellular fluid. Proteins which are stuck into plasma membrane help to open the channels in the membrane, (for example chemicals produced by the body )and ions

cell division • All the functions of other cells are done under the instruction of the nucleus • DNA is the building blocks of life which are found within the nucleus. The main function of the Endoplasmic Reticulum is to produce, store and transport proteins and lipid to most of the cell organelles. The Endoplasmic Reticulum is a large organelle that looks like sheets of folded membranes. There are two types of Endoplasmic Reticulum the Smooth ER and the Rough ER. you can distinguish that both

“The secretory vesicles store molecules and proteins from the endoplasmic reticulum and the Golgi apparatus until the cell is ready to release them. “ Some vesicles enter the cell membrane whereas some don’t. Until the cell signal is released the vesicles enter the cell membrane. The vesicle structure is round and hollow. Rough and smooth E.R- Plant cells and animal cells contain an organelle called the Smooth Endoplasmic Reticulum. “The role of the smooth endoplasmic reticulum is to make cellular

1) Lysosome: An organelle that is enclosed in a membrane. It contains digestive enzymes that are able to break down polymers such as nucleic acids, proteins, lipids and carbohydrates. They are shaped like a dense sphere but vary in size depending on what material they have taken in to digest. 2) Microfilament: Microfilaments are narrow protein fibers within the cytoskeleton. They are made up of two twisted proteins called actin; this is why they are also known as actin filaments. Their function

Nucleus- which is an organelle is found eukaryotic cells. The nucleus is the control point of the cell which helps control movement, eating, reproduction and also contains genetic material. The nucleus and the other organelles are surrounded by the nuclear envelope; it is similar to the cell membrane. The nucleus contains something called chromatin which is made of RNA, DNA and nuclear proteins. DNA contains genetic material and also instructions to how to make our body work properly. DNA is tied

lipids, steroid and hormone manufacturing, the transport of intracellular products and detoxification. (BSCB, 2013) A vesicle is bubble like membranous structure that stores and transports cellular products and digests metabolic waste in a cell. (Biology Online, 2008) The golgi complex is a structure composed of flattened sacs known as cisternae. It is involved in the modification and packaging of proteins, the manufacturing of lysosomes and transport of products via vesicles. (Bailey, R, 2013)

Homeostasis- biological term meaning ‘same state’- is the maintenance of a stable internal environment, despite fluctuations in the external environment. The stability is maintained through dynamic equilibrium. If dynamic equilibrium is unable to effectively counteract the effects of an external change on an internal environment, there are systems in place- internally- that also act as regulators, such as a negative feedback system. There are 3 components in a homeostatic system: The receptors, the

Chapter 3: The Multiple Choice 1. a. b. c. d. e. 2. a. b. c. d. e. 3. a. b. c. d. Cellular Level of Organization What are the three main parts of a eukaryotic cell? Plasma membrane, organelles, cytoplasm Plasma membrane, organelles, nucleus Plasma membrane, cytoplasm, organelles Plasma membrane, cytoplasm, nucleus Plasma membrane, cytosol, organelles Plasma membranes consist of what three components? Phospholipids, glycoproteins, water Proteins, cholesterol, fatty acids Cholesterol, fatty acids

SBI3UE Examination Notes By: Gursangat Sidhu and Derek Meng Unit 1 - The Cell Unit 2 - The Chemical Basis of Life Part 1 - Molecules of Life Part 2 - DNA Replication and Protein Synthesis Enzymes DNA Structure DNA Replication Protein Synthesis Overview Transcription Translation Mutations Part 3 - Cellular Respiration and Photosynthesis Unit 3 - Genetics Unit 1 - The Cell Cell Theory: Cell theory: refers to the idea that cells are the basic unit of structure in every living thing. It states