Name: Chapter 3 Cells 1. Cell: A cell consists of three main parts-the the cell
ID: 3506661 • Letter: N
Question
Name: Chapter 3 Cells 1. Cell: A cell consists of three main parts-the the cell "stuff called and the outer 2. Cell Membrane: The cell membrane is extremely and is function: The cell membrane regulates the participates in signal transduction, and helps cells adhere to other cels structure: The basic framework of the cell membrane consists of a double layer of are found in the cell membrane, including some which are transmembrane and some that are peripheral membrane 3. Cytoplasm: The cytoplasm consists of a dlear liquid called , a supportive and networks of membranes and organelles. 4. endoplasmic reticulum: provides a tubular system inside the cell rough: why does it appear rough? What does it function in the synthesis and transport or? smooth: Why does it appear smooth? What does it function in the transport of? 5. ribosome: Where are they found? What are they composed of? What do they help in the production of? 6. golgi apparatus: is composed of flattened These packages are released in the form of and it packages the cells products. 7. lysosomes: contain They are sometimes called the . enzymes to break up old cell components and bacteria. of the cell. 8. microfilaments and microtubules: thin threadlike structures that serve as the Microfilaments, made of the proteinCuse various cellular movements. Mictotubules, made of the globular protein of the cell. 9. centrosome: is a structure made up of two hollow cylinders called 10. cilia & flagella: are motile extensions from the cell. Which one is shorter? What is the only flagellated cell in the body? What is their function? What is its function in the human body? 11. Nucleus: is bounded by a that allow the passage of certain substances. -layered nuclear membrane containing relatively large nuclear 12. nucleolus: Where is it found? Does it have its own membrane? What chemicals is it made of? 13. chromatin: What chemicals is the chromatin made of? 14. Movement Through Cell Membrane: PASSIVE TRANSPORT. Mechanisms of movement across the membrane may be passive, requiring no (diffusion, facilitated diffusion, osmosis, and filtration). from the cell diffusion: from area of concentration to area of low concentration to reach osmosis: Only substance that is moved by osmosis is What substances diffuse in the human body? 15. Facilitated Diffusion:-uses membrane proteins that function as to move molecules (such as glucose)Explanation / Answer
1) A cell consists of 3 main parts the organelles, the cell stuff called cytoplasm and the outer membrane, ( the cell organelles are the internal organs of a cell responsible for carrying out specific function to keep the cell alive, the cytoplams: it is the protoplams within a living cell excluding the nucelus, outer membrane: it is the outer border of the cell.) 2)The cell membrane is extremely thin and selectively permeable , function: the cell membrane regulaates the homeostasis participates in signal tranduction, and helps cells adhere to other cells, structure : the basic framework of the cell membrane consists of a double layer of phosopholipids , proteins are found in the cell membrane including sone which are transmembrane and some that are peripheral membrane, 3)Cytoplasm: the cytoplam consists of a clear liquid called cytosol ,a supportive cytoskeleton and network of membranes and organelles. 4)Endoplamsic reticulum: provides a tubular transporation system inside the cell, rough why does it appear rough? ribosomes, what does itfunction in the synthesis and transport of ? proteins and lipids. smmoth: why does it appear smooth ? no ribosomes , what does it function in the transport of?important in lipid synthesis and absorption of fats. 5)Ribosome: where are they found? on the rough endoplasmic reticulum, what are they composed off? 60% RNA and 40% proteins, what do they help in the production of? proteins. 6)Golgi apparatus is composed of flattened membraneous sacs(cisternae) and it packages the cells products, these packages are released in the form of glycoprotein. 7)Lysosomes: contain powerful enzymes to break up old cell compenets and bacteria , they are somethimes called the garbage disposal of the cell. 8)Micrfilaments and microtubules : are thin threadlike structures that serve as the cytoskeleton of the cell, microfilaments, made of the protein bundles cause variouscellular movements , micrtublues , made of the globular protein tubulin. 9) Centrosomes : it is astructure made up of 2 hollow cylinders called centrioles ,what is their functions? during mitosis they distribute chromosomes. 10) Cilia and flagella: are mobile extensions from the cell, which one is shorter? cilia. what is its functions in the human body? they provide wavesof motions moving fluid over the cells, what is the only flagellated cell in the body? sperm. 11)Nucleus: it is bounded by a double layeres nuclear membrane containing relatively large nuclear pores that allow the passage of certain substancces. 12) nucleolus : where is it found? in the nucleus, it has membrane? no it does not have memebrance, what chemicals is it made of ? RNA and proteins, 13) chromatin: what chemicals is the chromatin made of ? proteins and DNA.
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