TOpic 2 Revision - REVISION-IB2
... a. Animal cells are round whereas plant cells are square b. Plant cell walls are enclosed in membrane. c. Both plant and animal cells have ribosomes. d. Animal cells contain more organelles than plant cells. 6. The data in the table below shows the normal concentration of two ions inside and outside ...
... a. Animal cells are round whereas plant cells are square b. Plant cell walls are enclosed in membrane. c. Both plant and animal cells have ribosomes. d. Animal cells contain more organelles than plant cells. 6. The data in the table below shows the normal concentration of two ions inside and outside ...
File
... In anaphase, the replicated sister chromatids which make up the chromosome are Sister separated form each other as chromatids the centromere splits. The are pulled spindle fibres shorten, pulling towards opposite poles the sister chromatids further of the cell away from each other towards the poles. ...
... In anaphase, the replicated sister chromatids which make up the chromosome are Sister separated form each other as chromatids the centromere splits. The are pulled spindle fibres shorten, pulling towards opposite poles the sister chromatids further of the cell away from each other towards the poles. ...
Answer
... lipid; protein Explanation: Lipids are not soluble in the water found both inside and outside the cell. They serve as a barrier to passage of most hydrophilic substances. Proteins allow passage of some of these materials by facilitated diffusion or active transport. 03.01E ...
... lipid; protein Explanation: Lipids are not soluble in the water found both inside and outside the cell. They serve as a barrier to passage of most hydrophilic substances. Proteins allow passage of some of these materials by facilitated diffusion or active transport. 03.01E ...
Biology: A Tour of the Cell
... These were the _______________________________ cells. They are very small cells and are very simple cells. ...
... These were the _______________________________ cells. They are very small cells and are very simple cells. ...
Waste Removal - Pro and Eukaryotes
... They do not have a nucleus and most other internal parts of the cell Because of this they cannot carry out specialized functions Pro- meaning before, -karyote meaning seed http://www.biology4kids.com/files/art/micro_prokar2_240x180.jpg ...
... They do not have a nucleus and most other internal parts of the cell Because of this they cannot carry out specialized functions Pro- meaning before, -karyote meaning seed http://www.biology4kids.com/files/art/micro_prokar2_240x180.jpg ...
Chapter Objectives
... 33. Define osmosis and predict the direction of water movement based upon differences in solute concentration 34. Explain how bound water affects the osmotic behavior of dilute biological fluids 35. Describe how living cells with and without walls regulate water balance 36. Explain how transport pro ...
... 33. Define osmosis and predict the direction of water movement based upon differences in solute concentration 34. Explain how bound water affects the osmotic behavior of dilute biological fluids 35. Describe how living cells with and without walls regulate water balance 36. Explain how transport pro ...
The Structure of Cell: Part II
... Animal cells lack cell walls but have an extra cellular matrix (ECM) or glycocalyx. The ECM is made of glycoproteins such as collagen, proteoglycan, and fibronectins. These glycoproteins are connected to receptor proteins in the cell membrane called integrins. Used for support, adhesion, movement an ...
... Animal cells lack cell walls but have an extra cellular matrix (ECM) or glycocalyx. The ECM is made of glycoproteins such as collagen, proteoglycan, and fibronectins. These glycoproteins are connected to receptor proteins in the cell membrane called integrins. Used for support, adhesion, movement an ...
Diffusion & Osmosis
... area in which they are highly concentrated to a area in which they are less concentrated. ...
... area in which they are highly concentrated to a area in which they are less concentrated. ...
The Plasma Membrane
... "Homeostasis" means "same state." Cells in homeostasis are successfully maintaining the internal conditions necessary for basic functioning. The plasma membrane is essential for maintaining these conditions functioning. Simply, the plasma membrane separates the inside of the cell from the outsid ...
... "Homeostasis" means "same state." Cells in homeostasis are successfully maintaining the internal conditions necessary for basic functioning. The plasma membrane is essential for maintaining these conditions functioning. Simply, the plasma membrane separates the inside of the cell from the outsid ...
All in-class activities_Colonization
... In science models are a set of ideas that, together, are used to try to explain how natural phenomena might work. A model may be a graph, a diagram, a set of ideas set down in words, or anything that can be used to represent the phenomenon. For example, a drawing of a cell is not a real cell, but he ...
... In science models are a set of ideas that, together, are used to try to explain how natural phenomena might work. A model may be a graph, a diagram, a set of ideas set down in words, or anything that can be used to represent the phenomenon. For example, a drawing of a cell is not a real cell, but he ...
THE CELL WHEEL
... 14. Nucleolus 15. Cilia 16. Flagella 17. Centriole 18. Cytoplasm 19. Cell Junctions 20. Chromatin/Chromosomes ...
... 14. Nucleolus 15. Cilia 16. Flagella 17. Centriole 18. Cytoplasm 19. Cell Junctions 20. Chromatin/Chromosomes ...
2401_Ch3_Handouts.pdf
... There are two subunits a large 60S subunit and a small 40S subunit Together then form an 80S ribosome S = refers to their sedimentation rate not their size so you don’t add the numbers ...
... There are two subunits a large 60S subunit and a small 40S subunit Together then form an 80S ribosome S = refers to their sedimentation rate not their size so you don’t add the numbers ...
Structure and Function of Cells and Tissues
... Cells bound together and serving a specific function are called tissues and include epithelium, connective tissue, muscle tissue, and nerve tissue. Epithelium consists of sheets of cells that have a basal lamina and an unattached or free edge. It is typically found lining cavities, blood vessels, gl ...
... Cells bound together and serving a specific function are called tissues and include epithelium, connective tissue, muscle tissue, and nerve tissue. Epithelium consists of sheets of cells that have a basal lamina and an unattached or free edge. It is typically found lining cavities, blood vessels, gl ...
Cell City - CAC
... UFOs!! UFOs!! I see them: Unidentified Floating Objects! They’re taking over your cells, and it’s up to you to figure out what they are!! Just like the first scientists studying cells, you need to identify the names and functions of each of the “UFO’s” (a.k.a. organelles) that are found in your ce ...
... UFOs!! UFOs!! I see them: Unidentified Floating Objects! They’re taking over your cells, and it’s up to you to figure out what they are!! Just like the first scientists studying cells, you need to identify the names and functions of each of the “UFO’s” (a.k.a. organelles) that are found in your ce ...
06_DetailLectOut_jkAR
... Contractile vacuoles, found in freshwater protists, pump excess water out of the cell to maintain the appropriate concentration of salts. A large central vacuole is found in many mature plant cells. The membrane surrounding the central vacuole, the tonoplast, is selective in its transport of solut ...
... Contractile vacuoles, found in freshwater protists, pump excess water out of the cell to maintain the appropriate concentration of salts. A large central vacuole is found in many mature plant cells. The membrane surrounding the central vacuole, the tonoplast, is selective in its transport of solut ...
File
... o Proteins in the lysosomal membrane pump hydrogen ions from the cytosol into the lumen of the lysosomes. o Rupture of one or a few lysosomes has little impact on a cell because the lysosomal enzymes are not very active at the neutral pH of the cytosol. o However, massive rupture of many lysosomes c ...
... o Proteins in the lysosomal membrane pump hydrogen ions from the cytosol into the lumen of the lysosomes. o Rupture of one or a few lysosomes has little impact on a cell because the lysosomal enzymes are not very active at the neutral pH of the cytosol. o However, massive rupture of many lysosomes c ...
CHAPTER 4 CELL STRUCTURE AND FUNCTION
... 3. The mitochondria and chloroplasts are unique in being self-sufficient and having their own genetic material. 4. Other organelles communicate with each other and exchange products in transport vesicles. The Cytoskeleton 1. The cytoskeleton is a lattice of protein fibers that maintains the shape of ...
... 3. The mitochondria and chloroplasts are unique in being self-sufficient and having their own genetic material. 4. Other organelles communicate with each other and exchange products in transport vesicles. The Cytoskeleton 1. The cytoskeleton is a lattice of protein fibers that maintains the shape of ...
Cell Structure pdf
... • Rates of chemical exchange may be inadequate to maintain a cell with a very large cytoplasm. • The need for a surface sufficiently large to accommodate the volume explains the microscopic size of most cells. • Larger organisms do not generally have larger cells than smaller organisms simply more c ...
... • Rates of chemical exchange may be inadequate to maintain a cell with a very large cytoplasm. • The need for a surface sufficiently large to accommodate the volume explains the microscopic size of most cells. • Larger organisms do not generally have larger cells than smaller organisms simply more c ...
Plants Up Close
... Briefly discuss compound • Direct students to first place the membrane is on the inside. The cell microscopes and how/why they onion skin flat onto the slide, and to wall strengthens the plant stem. are used (Refer to Vocabulary Key). put one drop of iodine on top of the Animal cells have nuclei and ...
... Briefly discuss compound • Direct students to first place the membrane is on the inside. The cell microscopes and how/why they onion skin flat onto the slide, and to wall strengthens the plant stem. are used (Refer to Vocabulary Key). put one drop of iodine on top of the Animal cells have nuclei and ...
Table of Contents - Milan Area Schools
... • Small molecules can move across the lipid bilayer by simple diffusion. • The more lipid-soluble the molecule, the more rapidly it diffuses. • An exception to this is water, which can pass through the lipid bilayer more readily than its lipid solubility would predict. • Polar and charged molecules ...
... • Small molecules can move across the lipid bilayer by simple diffusion. • The more lipid-soluble the molecule, the more rapidly it diffuses. • An exception to this is water, which can pass through the lipid bilayer more readily than its lipid solubility would predict. • Polar and charged molecules ...
The Cell - Studyclix
... Prokaryotic cells • Bacteria differ from plants, animal and fungi in the type of cell they possess • Bacteria have prokaryotic cells – perhaps the type of cell that first appeared millions of years ago • Do not have a definite nucleus and have ...
... Prokaryotic cells • Bacteria differ from plants, animal and fungi in the type of cell they possess • Bacteria have prokaryotic cells – perhaps the type of cell that first appeared millions of years ago • Do not have a definite nucleus and have ...
Cytosol
The cytosol or intracellular fluid (ICF) or cytoplasmic matrix is the liquid found inside cells. It is separated into compartments by membranes. For example, the mitochondrial matrix separates the mitochondrion into many compartments.In the eukaryotic cell, the cytosol is within the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. In prokaryotes, most of the chemical reactions of metabolism take place in the cytosol, while a few take place in membranes or in the periplasmic space. In eukaryotes, while many metabolic pathways still occur in the cytosol, others are contained within organelles.The cytosol is a complex mixture of substances dissolved in water. Although water forms the large majority of the cytosol, its structure and properties within cells is not well understood. The concentrations of ions such as sodium and potassium are different in the cytosol than in the extracellular fluid; these differences in ion levels are important in processes such as osmoregulation, cell signaling, and the generation of action potentials in excitable cells such as endocrine, nerve and muscle cells. The cytosol also contains large amounts of macromolecules, which can alter how molecules behave, through macromolecular crowding.Although it was once thought to be a simple solution of molecules, the cytosol has multiple levels of organization. These include concentration gradients of small molecules such as calcium, large complexes of enzymes that act together to carry out metabolic pathways, and protein complexes such as proteasomes and carboxysomes that enclose and separate parts of the cytosol.