AP Biology Ch. 6 Cells - Anoka
... In animal cells, microtubules grow out from a centrosome which is located near the nucleus. Within the centrosome is a pair of centrioles, ...
... In animal cells, microtubules grow out from a centrosome which is located near the nucleus. Within the centrosome is a pair of centrioles, ...
Chapter 7 practice quiz
... by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored with a pH meter. Samples of the cells are taken at intervals, and the sucrose in the sampled cells is measured. The measurements show that sucrose uptake by the cells correlates with a rise in the pH of ...
... by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored with a pH meter. Samples of the cells are taken at intervals, and the sucrose in the sampled cells is measured. The measurements show that sucrose uptake by the cells correlates with a rise in the pH of ...
Structure and functions
... transport proteins and metabolic energy to transport substances across the membrane against the concentration gradient. In this way, active transport allows cells to accumulate (mengumpulkan) needed substances even when the concentration is lower outside. The energy is provided by proton motive fo ...
... transport proteins and metabolic energy to transport substances across the membrane against the concentration gradient. In this way, active transport allows cells to accumulate (mengumpulkan) needed substances even when the concentration is lower outside. The energy is provided by proton motive fo ...
Chapter 6 Vocabulary - Plain Local Schools
... apparatus (Concept 6.4) 30. lysosome: membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides (Concept 6.4) 31. chloroplast: organelle found in some plant cells and certain unicellular organisms where photosynthesis takes place (Concepts 6.5, ...
... apparatus (Concept 6.4) 30. lysosome: membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides (Concept 6.4) 31. chloroplast: organelle found in some plant cells and certain unicellular organisms where photosynthesis takes place (Concepts 6.5, ...
Section 1 Workbook
... Describe how the following pairs of organelles function to compartmentalize the cell and move materials through it. Where are proteins made and how are they processed, transported and exported? a. Rough and Smooth ER ...
... Describe how the following pairs of organelles function to compartmentalize the cell and move materials through it. Where are proteins made and how are they processed, transported and exported? a. Rough and Smooth ER ...
Chapter 7 Cell Membrane structure notes 12.10
... 2. What does passive mean? __________________________________________ 3. What does active transport mean? ______________________________________ 4. What are the 3 types of passive transport? ___________________, ________________, and ________________________ 5. What is the one type of cell transport ...
... 2. What does passive mean? __________________________________________ 3. What does active transport mean? ______________________________________ 4. What are the 3 types of passive transport? ___________________, ________________, and ________________________ 5. What is the one type of cell transport ...
Worksheet - Moore Public Schools
... convoluted, forming 34. ____________________________ (cristae) when viewed in cross-section. The cristae greatly increase the inner membrane's surface area. It is on these cristae that food (sugar) is combined with oxygen to produce ATP - the primary energy source for the cell. Vacuole: A vacuole is ...
... convoluted, forming 34. ____________________________ (cristae) when viewed in cross-section. The cristae greatly increase the inner membrane's surface area. It is on these cristae that food (sugar) is combined with oxygen to produce ATP - the primary energy source for the cell. Vacuole: A vacuole is ...
Chapter 16 - Introductory & Human Biology
... 16.20 Prokaryotes can colonize and cause disease in higher organisms • Although many microbes make their homes in or on the human body, only a small fraction cause harm to us. • Pathogens are often able to: – colonize – replicate – survive within host tissues ...
... 16.20 Prokaryotes can colonize and cause disease in higher organisms • Although many microbes make their homes in or on the human body, only a small fraction cause harm to us. • Pathogens are often able to: – colonize – replicate – survive within host tissues ...
Cell Membrane and Transport
... B. The movement of water into and out of the cell. C. The movement of oxygen across the cell membrane. D. The movement of sugar from a low to a high concentration. b) A slice of potato placed in distilled water becomes firm after several hours because A. salt has passed into the potato cells. B. cel ...
... B. The movement of water into and out of the cell. C. The movement of oxygen across the cell membrane. D. The movement of sugar from a low to a high concentration. b) A slice of potato placed in distilled water becomes firm after several hours because A. salt has passed into the potato cells. B. cel ...
Cell Organelles Powerpoint 2
... 1) Our bodies treat alcohol as a poison. Understanding this fact, we would expect someone who frequently abuses alcohol to have a higher number of __________ than someone who does not drink alcohol. a) Lysosomes b) Mitochondria c) Peroxisomes d) Ribosomes ...
... 1) Our bodies treat alcohol as a poison. Understanding this fact, we would expect someone who frequently abuses alcohol to have a higher number of __________ than someone who does not drink alcohol. a) Lysosomes b) Mitochondria c) Peroxisomes d) Ribosomes ...
D. cell structure soln
... 4. If a plant cell is 8 µm in width and depth and has a length of 30 µm, what is the surface to volume ratio for this cell? If the same cell has a large central vacuole, so that the cytoplasm (not including the vacuole) extends inward 1 µm from the plasma membrane of the cell, what is the surface to ...
... 4. If a plant cell is 8 µm in width and depth and has a length of 30 µm, what is the surface to volume ratio for this cell? If the same cell has a large central vacuole, so that the cytoplasm (not including the vacuole) extends inward 1 µm from the plasma membrane of the cell, what is the surface to ...
Cell Transport Homeostasis PPT
... Turgor pressure occurs in plants cells as their central water vacuoles fill with water. ...
... Turgor pressure occurs in plants cells as their central water vacuoles fill with water. ...
KEY Combined Cells and Cell Divison Study Guide
... 2. Refer to the illustration above. In this system, solute molecules in cell 2 are most likely to diffuse to where? To cells 1 or 3 because they have a low concentration of solute 3. Refer to the illustration above. In which direction are water molecules in this system most likely to diffuse? (from ...
... 2. Refer to the illustration above. In this system, solute molecules in cell 2 are most likely to diffuse to where? To cells 1 or 3 because they have a low concentration of solute 3. Refer to the illustration above. In which direction are water molecules in this system most likely to diffuse? (from ...
DW#4 CellsAlive Websearch
... convoluted, forming 34. ____________________________ (cristae) when viewed in cross-section. The cristae greatly increase the inner membrane's surface area. It is on these cristae that food (sugar) is combined with oxygen to produce ATP - the primary energy source for the cell. Vacuole: A vacuole is ...
... convoluted, forming 34. ____________________________ (cristae) when viewed in cross-section. The cristae greatly increase the inner membrane's surface area. It is on these cristae that food (sugar) is combined with oxygen to produce ATP - the primary energy source for the cell. Vacuole: A vacuole is ...
Chitin is a component of ______ cell walls
... 22. Folded membrane that packages and delivers materials released by ER a. Golgi apparatus b. Eukaryotic cell c. Endoplasmic reticulum d. Cytoplasm 23. Vacuole that becomes a digestive site by producing enzymes a. Nucleus b. Mitochondria c. Lysosome d. Golgi apparatus 24. Manufacture proteins outsid ...
... 22. Folded membrane that packages and delivers materials released by ER a. Golgi apparatus b. Eukaryotic cell c. Endoplasmic reticulum d. Cytoplasm 23. Vacuole that becomes a digestive site by producing enzymes a. Nucleus b. Mitochondria c. Lysosome d. Golgi apparatus 24. Manufacture proteins outsid ...
Lecture, Cell Membrane Structure and Function
... • Molecules pass through a protein to cross membrane • Not diffusion because active implies movement of solutes against their concentration gradient (i.e., low high) • Being “active” requires energy! ATP • Requires proteins or “pumps” to transport molecules across the membrane. ...
... • Molecules pass through a protein to cross membrane • Not diffusion because active implies movement of solutes against their concentration gradient (i.e., low high) • Being “active” requires energy! ATP • Requires proteins or “pumps” to transport molecules across the membrane. ...
Eukaryotic Cells
... We have mentioned that both mitochondria and chloroplasts contain DNA and ribosomes. Have you wondered why? Strong evidence points to endosymbiosis as the explanation. Symbiosis is a relationship in which organisms from two separate species depend on each other for their survival. Endosymbiosis (end ...
... We have mentioned that both mitochondria and chloroplasts contain DNA and ribosomes. Have you wondered why? Strong evidence points to endosymbiosis as the explanation. Symbiosis is a relationship in which organisms from two separate species depend on each other for their survival. Endosymbiosis (end ...
Cells and Their Organelles Notes
... animal cells have double membranes and their own DNA. Energy enters the food chain through the chloroplasts. Chloroplasts do not exist in animal cells; they are present only in plants and some protists. Chloroplasts are elongated or discshaped organelles containing chlorophyll that trap sunlight for ...
... animal cells have double membranes and their own DNA. Energy enters the food chain through the chloroplasts. Chloroplasts do not exist in animal cells; they are present only in plants and some protists. Chloroplasts are elongated or discshaped organelles containing chlorophyll that trap sunlight for ...
Name_________________________ Date___________ Pd
... A. from an area of higher concentration to an area of lower concentration B. Randomly C. from an area of lower concentration to an area of higher concentration D. in a direction that doesn’t depend on concentration When the concentration of a solute inside and outside a cell is the same, the cell ha ...
... A. from an area of higher concentration to an area of lower concentration B. Randomly C. from an area of lower concentration to an area of higher concentration D. in a direction that doesn’t depend on concentration When the concentration of a solute inside and outside a cell is the same, the cell ha ...
Eukaryotic Cell Structure: Organelles in Animal
... they eat. Animals eat plants, which transfers the glucose from the plant to their body tissues. When these animals are then eaten their body tissues are broken down to provide a source of ...
... they eat. Animals eat plants, which transfers the glucose from the plant to their body tissues. When these animals are then eaten their body tissues are broken down to provide a source of ...
P T ASSIVE RANSPORT
... SHORT ANSWER 1. Photosynthesis involves many chemical reactions linked such that the product of one reaction is consumed in the next reaction. 2. Chloroplasts have an inner membrane system consisting of thylakoids. The pumping of protons into the thylakoids builds up a proton concentration gradient ...
... SHORT ANSWER 1. Photosynthesis involves many chemical reactions linked such that the product of one reaction is consumed in the next reaction. 2. Chloroplasts have an inner membrane system consisting of thylakoids. The pumping of protons into the thylakoids builds up a proton concentration gradient ...
Cytoplasmic streaming
Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of organelles, nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.Cytoplasmic streaming was first discovered in the 1830s. The scientific breakthrough assisted scientists in developing an understanding of the different roles of cells and how they function as the basic operating systems of life.This process occurs through the operation of motor proteins called myosins.These proteins use energy of adenosine triphosphate (ATP) to act as a molecular motor, which slides along actin filaments. This works in a manner that tows the organelles and other cytoplasmic contents in the same direction. Myosin proteins consist of two conjoined proteins. If one protein remains attached to the substrate, the substance acted upon by the protein, such as a microfilament, has the ability to move organelles through the cytoplasm.The green alga genus Chara and other genera in the Division Charophyta, such as Coleochaete, are thought to be the closest relatives of land plants. These haploid organisms contain some of the largest plant cells on earth, a single cell of which can reach up to 10 cm in length. The large size of these cells demands an efficient means to distribute resources, which is enabled via cytoplasmic streaming.Cytoplasmic streaming is strongly dependent upon intracellular pH and temperature. It has been observed that the effect of temperature on cytoplasmic streaming created linear variance and dependence at different high temperatures in comparison to low temperatures. This process is complicated, with temperature alterations in the system increasing its efficiency, with other factors such as the transport of ions across the membrane being simultaneously affected. This is due to cells homeostasis depending upon active transport which may be affected at some critical temperatures.In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.In reference to pH, because actin and myosin are both proteins, strong dependence on pH is expected. The optimal pH at which cytoplasmic streaming is highest, is achieved at neutral pH and decreases at both low and high pH.The flow of cytoplasm may be stopped by:Adding Lugol's iodine solutionAdding Cytochalasin D (dissolved in dimethyl sulfoxide)↑ ↑ ↑ ↑ ↑ ↑