
Course Outline - Pima Community College
... 9. Describe the four categories of “macromolecules” and why each is important for cellular structure and functions. 10. Explain how enzymes function. 11. Describe the structure of the cellular organelles and how each functions. 12. Describe specifically membrane transport mechanisms, protein synthes ...
... 9. Describe the four categories of “macromolecules” and why each is important for cellular structure and functions. 10. Explain how enzymes function. 11. Describe the structure of the cellular organelles and how each functions. 12. Describe specifically membrane transport mechanisms, protein synthes ...
File
... Phospholipids contain both hydrophilic phosphate heads and hydrophobic fatty acid tails. The heads are attracted towards water and the tails repel water. So the heads orient themselves towards the aqueous solutions both inside and outside of the cell, while the tails for a layer in between the heads ...
... Phospholipids contain both hydrophilic phosphate heads and hydrophobic fatty acid tails. The heads are attracted towards water and the tails repel water. So the heads orient themselves towards the aqueous solutions both inside and outside of the cell, while the tails for a layer in between the heads ...
NUCLEATED CELLS…EUKARYOTES The Eukaryota is a domain of
... called just Bacteria). This first domain is where most of the common bacteria belong...all its members are single celled organisms with no nuclei. The most famous bacteria E. Coli belongs to this domain. The domain called Archaea has single celled bacteria also but they seem to have evolved along a ...
... called just Bacteria). This first domain is where most of the common bacteria belong...all its members are single celled organisms with no nuclei. The most famous bacteria E. Coli belongs to this domain. The domain called Archaea has single celled bacteria also but they seem to have evolved along a ...
Test Review 2
... 3. Make ATP to allow cells to use energy in food 4. Are membrane tubes whose enzymes construct components of membranes (SER) or modify proteins (RER) 5. Are membrane sacs used for storage 6. Synthesize proteins following gene instructions 7. Are membrane sacs filled w/ digestive enzymes used to brea ...
... 3. Make ATP to allow cells to use energy in food 4. Are membrane tubes whose enzymes construct components of membranes (SER) or modify proteins (RER) 5. Are membrane sacs used for storage 6. Synthesize proteins following gene instructions 7. Are membrane sacs filled w/ digestive enzymes used to brea ...
Chapter 3: CELL STRUCTURE AND FUNCTION
... The contribution of many scientists led to the discovery of cells and the development of the cell theory. The cell theory states that __________________________________________, _________________________________________, and _________________________________________________________. Section 3.2 Euka ...
... The contribution of many scientists led to the discovery of cells and the development of the cell theory. The cell theory states that __________________________________________, _________________________________________, and _________________________________________________________. Section 3.2 Euka ...
Worksheet
... How is the nucleus like a manager and the design team? Slide 12 – Cytoplasm What organelles (meaning “little organs”) are shown? Where are the organelles found in a cell? Slide 13 – Organelles: Chloroplasts What is the function of the chloroplasts? What cellular process do chloroplasts perform? What ...
... How is the nucleus like a manager and the design team? Slide 12 – Cytoplasm What organelles (meaning “little organs”) are shown? Where are the organelles found in a cell? Slide 13 – Organelles: Chloroplasts What is the function of the chloroplasts? What cellular process do chloroplasts perform? What ...
6.3 Reading Guide
... 3) The solution with a higher concentration of solute is said to be hypertonic. What does “hyper” mean? 4) The solution with the lower solute concentration is said to be hypotonic What does “hypo” mean? 5) Solutions in which the concentrations of solute are equal are said to be isotonic What does “h ...
... 3) The solution with a higher concentration of solute is said to be hypertonic. What does “hyper” mean? 4) The solution with the lower solute concentration is said to be hypotonic What does “hypo” mean? 5) Solutions in which the concentrations of solute are equal are said to be isotonic What does “h ...
Fluid Mosaic Model - Old Saybrook Public Schools
... Large amounts transported Take material into the cell by infolding creating a pocket Pocket breaks loose from cell membrane to form vacuole Large molecules, food, cells ...
... Large amounts transported Take material into the cell by infolding creating a pocket Pocket breaks loose from cell membrane to form vacuole Large molecules, food, cells ...
Part I: Prokaryotic vs. Eukaryotic Booklet
... Fundamental Question: What are the similarities and differences between prokaryotic and eukaryotic cells? All organisms are made of cells that are either prokaryotic or eukaryotic. Learning about both types, you will create a booklet that explains their similarities and differences. ...
... Fundamental Question: What are the similarities and differences between prokaryotic and eukaryotic cells? All organisms are made of cells that are either prokaryotic or eukaryotic. Learning about both types, you will create a booklet that explains their similarities and differences. ...
(nucleus, cytosol, organelles, membrane) and their basic functions
... fluid inside inner membrane is matrix enzymes in matrix and cristae break down fuel molecules to make ATP this process requires oxygen to get rid of the byproducts (aerobic) mitochondria contain DNA that is different from nuclear DNA mitochondria are inherited from the maternal parent they replicate ...
... fluid inside inner membrane is matrix enzymes in matrix and cristae break down fuel molecules to make ATP this process requires oxygen to get rid of the byproducts (aerobic) mitochondria contain DNA that is different from nuclear DNA mitochondria are inherited from the maternal parent they replicate ...
active transport
... Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. So it could be referring to a cell in a solution…or a solution surrounding a cell. ...
... Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. So it could be referring to a cell in a solution…or a solution surrounding a cell. ...
Cell - Cobb Learning
... environment (All cells) • Selectively permeable • Functions: 1)Controls movement in and out of cell 2)Allows cell recognition; boundary for cell 3)Maintains homeostasis: balance within the cells ...
... environment (All cells) • Selectively permeable • Functions: 1)Controls movement in and out of cell 2)Allows cell recognition; boundary for cell 3)Maintains homeostasis: balance within the cells ...
Multiple Choice Review – Eukaryotes and Gene Expression
... 4. Eukaryotic and prokaryotic cells have similarities as well as differences. Which of the following describe eukaryotic cells but not prokaryotic cells? a. Are smaller in size. b. Have DNA as genetic storage molecule. c. Contain cell organelles. d. Are unicellular organisms only. 5. The nucleus is ...
... 4. Eukaryotic and prokaryotic cells have similarities as well as differences. Which of the following describe eukaryotic cells but not prokaryotic cells? a. Are smaller in size. b. Have DNA as genetic storage molecule. c. Contain cell organelles. d. Are unicellular organisms only. 5. The nucleus is ...
UNITY OF LIFE
... How has the information from these scientists been used to protect our food from going bad? (application of information-technology) What process was named after Pasteur? Approximately how many years apart were the experiments of these three famous scientists? What does the phrase "Life From Life" M ...
... How has the information from these scientists been used to protect our food from going bad? (application of information-technology) What process was named after Pasteur? Approximately how many years apart were the experiments of these three famous scientists? What does the phrase "Life From Life" M ...
Plant vs. Animal Lab
... 1. Obtain a piece of onion and remove one of the scales from it. Use forceps to pull away the epidermis from the inner surface. Be careful not to wrinkle the membrane. Place a drop of water on the center of a microscope slide, cut a piece of membrane about 0.5 cm square with a single-edged razor bl ...
... 1. Obtain a piece of onion and remove one of the scales from it. Use forceps to pull away the epidermis from the inner surface. Be careful not to wrinkle the membrane. Place a drop of water on the center of a microscope slide, cut a piece of membrane about 0.5 cm square with a single-edged razor bl ...
Medulla Oblongata Dorsal surface
... The brainstem has three broad functions: (1) it serves as a conduit for the ascending tracts and descending tracts connecting the spinal cord to the different parts of the higher centers in the forebrain (2) it contains important reflex centers associated with the control of respiration and the car ...
... The brainstem has three broad functions: (1) it serves as a conduit for the ascending tracts and descending tracts connecting the spinal cord to the different parts of the higher centers in the forebrain (2) it contains important reflex centers associated with the control of respiration and the car ...
Exploring a Plant Cell
... diameter of the field of view? ________________________ What is the size of an individual animal cell (µm)? __________________ B. Record the cells parts visible in chart. 1. Do these cells tend to have a typical shape? If so what shape? ____________________ __________________________________________ ...
... diameter of the field of view? ________________________ What is the size of an individual animal cell (µm)? __________________ B. Record the cells parts visible in chart. 1. Do these cells tend to have a typical shape? If so what shape? ____________________ __________________________________________ ...
notes cellular transport power point presentation
... How do molecules move? All molecules will move automatically from a region of ______ HIGH concentration to a region of ______concentration. LOW ...
... How do molecules move? All molecules will move automatically from a region of ______ HIGH concentration to a region of ______concentration. LOW ...
Cell Structure and Function
... the nucleus • Chromosomes contain the DNA which contain the instructions for controlling the cell’s functions • Most of the time the DNA is coiled into chromatin • Chromosomes are seen as coiled strands inside the nucleus is the genetic material seen in the nucleus ...
... the nucleus • Chromosomes contain the DNA which contain the instructions for controlling the cell’s functions • Most of the time the DNA is coiled into chromatin • Chromosomes are seen as coiled strands inside the nucleus is the genetic material seen in the nucleus ...
Cell nucleus

In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.