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... e. Water and NaCl will continue to move across the membrane until the solutions inside the cell and in the beaker become: hypertonic, hypotonic, or isotonic? (circle one) isotonic ...
... e. Water and NaCl will continue to move across the membrane until the solutions inside the cell and in the beaker become: hypertonic, hypotonic, or isotonic? (circle one) isotonic ...
Biology 12
... Why Are Cells So Small? Cells are limited in how large they can be. This is because the surface area and volume ratio does not stay the same as their size increases. Because of this, it is harder for a large cell to pass materials in and out of the membrane, and to move materials through the cell. 1 ...
... Why Are Cells So Small? Cells are limited in how large they can be. This is because the surface area and volume ratio does not stay the same as their size increases. Because of this, it is harder for a large cell to pass materials in and out of the membrane, and to move materials through the cell. 1 ...
Passive transport
... Exocytosis occurs when material is discharged from the cell. -vesicles in the cytoplasm fuse with the cell membrane and release their contents to the exterior of the cell -used in plants to export cell wall material -used in animals to secrete hormones, neurotransmitters, digestive enzymes ...
... Exocytosis occurs when material is discharged from the cell. -vesicles in the cytoplasm fuse with the cell membrane and release their contents to the exterior of the cell -used in plants to export cell wall material -used in animals to secrete hormones, neurotransmitters, digestive enzymes ...
Vocabulary - Chapter 5 – THE CELL cell theory The widely accepted
... The so-called “brain” of the cell which contains the genetic material known as DNA organelles Smaller organ-like structures found within cells, each with a specific function Examples: nucleus, chloroplast, and mitochondria microscope Several types of scientific instruments used by scientists to obse ...
... The so-called “brain” of the cell which contains the genetic material known as DNA organelles Smaller organ-like structures found within cells, each with a specific function Examples: nucleus, chloroplast, and mitochondria microscope Several types of scientific instruments used by scientists to obse ...
Human Biology 303 Exam # 1 - Human Physiology and Diagnosis.
... 3) A protein that speeds up chemical reactions by lowering the activation energy in the reaction is called ________. 4) A metabolic process in which a water molecule is removed from the functional groups of adjoining monomers is called ________. This process usually forms covalent bonds between adja ...
... 3) A protein that speeds up chemical reactions by lowering the activation energy in the reaction is called ________. 4) A metabolic process in which a water molecule is removed from the functional groups of adjoining monomers is called ________. This process usually forms covalent bonds between adja ...
Cell Transport ppt notes
... • Also called equilibrium • Maintained by plasma membrane controlling what enters & leaves the cell ...
... • Also called equilibrium • Maintained by plasma membrane controlling what enters & leaves the cell ...
1. Eukaryotic Cell Structure Eukaryotic Organelles
... Plasma Membrane true barrier between “internal” & “external” ...
... Plasma Membrane true barrier between “internal” & “external” ...
Isabel Hoyt Membrane
... The most abundant lipids in most membranes are phospholipids. A phospholipid is an amphipathic molecule, meaning it has both a hydrophilic region and a hydrophobic region. Other types of membrane lipids are also amphipathic, Most of the proteins of membranes have both hydrophobic and hydrophilic reg ...
... The most abundant lipids in most membranes are phospholipids. A phospholipid is an amphipathic molecule, meaning it has both a hydrophilic region and a hydrophobic region. Other types of membrane lipids are also amphipathic, Most of the proteins of membranes have both hydrophobic and hydrophilic reg ...
Cell Boundaries
... a double-layered sheet called a lipid bilayer. It functions as a flexible barrier between the cell and its surroundings. ...
... a double-layered sheet called a lipid bilayer. It functions as a flexible barrier between the cell and its surroundings. ...
Quest study guide#1
... 2. When Robert Hooke saw “juice” in some cells, what structure was he really looking at? __________________________________________________________________ ________________________________________________________________ 3. What are two structures found only in plant cells? (Do not include vacuoles— ...
... 2. When Robert Hooke saw “juice” in some cells, what structure was he really looking at? __________________________________________________________________ ________________________________________________________________ 3. What are two structures found only in plant cells? (Do not include vacuoles— ...
Animal Cell
... for "export" from the cell. lysosome - (also called cell vesicles) round organelles surrounded by a membrane and containing digestive enzymes. This is where the digestion of cell nutrients takes place. mitochondrion - spherical to rod-shaped organelles with a double membrane. The inner membrane is i ...
... for "export" from the cell. lysosome - (also called cell vesicles) round organelles surrounded by a membrane and containing digestive enzymes. This is where the digestion of cell nutrients takes place. mitochondrion - spherical to rod-shaped organelles with a double membrane. The inner membrane is i ...
Animal Cell
... Little factories that make proteins. Some are attached to endoplasmic reticulum (ER), others are found in the cytoplasm ...
... Little factories that make proteins. Some are attached to endoplasmic reticulum (ER), others are found in the cytoplasm ...
contractile vacuoles
... • Nucleic acid- very large organic molecules made up of carbon, oxygen, hydrogen, nitrogen and phosphorus – Contain the instructions that cells need to carry out all the functions of life – Two kinds of nucleic acid • DNA • RNA ...
... • Nucleic acid- very large organic molecules made up of carbon, oxygen, hydrogen, nitrogen and phosphorus – Contain the instructions that cells need to carry out all the functions of life – Two kinds of nucleic acid • DNA • RNA ...
Cells Pretest - Warren County Schools
... Learning Target 2: I can describe the functions of the cell's organelles. 6. What structure allows only certain things to pass in and out of the cell? a. Cytoplasm b. Ribosomes c. Cell membrane d. Golgi body 7. What is made of folded membranes that move materials around inside the cell a. Nucleus b ...
... Learning Target 2: I can describe the functions of the cell's organelles. 6. What structure allows only certain things to pass in and out of the cell? a. Cytoplasm b. Ribosomes c. Cell membrane d. Golgi body 7. What is made of folded membranes that move materials around inside the cell a. Nucleus b ...
Slide 1
... What are membranes? Membranes are barriers that define compartments • They are made up of a lipid bilayer ...
... What are membranes? Membranes are barriers that define compartments • They are made up of a lipid bilayer ...
Active Transport Small particles such as water, carbon dioxide and
... Small particles such as water, carbon dioxide and oxygen diffuse freely through the cell membrane yet there are other larger particles that the cell needs that cannot be obtained through diffusion. For example cells need glucose for energy. The glucose is present in low concentrations in your blood ...
... Small particles such as water, carbon dioxide and oxygen diffuse freely through the cell membrane yet there are other larger particles that the cell needs that cannot be obtained through diffusion. For example cells need glucose for energy. The glucose is present in low concentrations in your blood ...
Cells and Membranes
... membrane (lipid bilayer) - Each organelle is specialized; this is determined mainly by the types of proteins found inside the organelles as well as the types of proteins found in the membrane of the cell. How do proteins get inside membranes (which have hydrophobic interiors)? Each protein has C=O a ...
... membrane (lipid bilayer) - Each organelle is specialized; this is determined mainly by the types of proteins found inside the organelles as well as the types of proteins found in the membrane of the cell. How do proteins get inside membranes (which have hydrophobic interiors)? Each protein has C=O a ...
Cell Study Guide
... 37. The series of diagrams represents a process carried out by a cell. This process is known as 38. The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called 39. Which org ...
... 37. The series of diagrams represents a process carried out by a cell. This process is known as 38. The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called 39. Which org ...
Cell Biology Unit Study Guide
... 37. The series of diagrams represents a process carried out by a cell. This process is known as 38. The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called 39. Which org ...
... 37. The series of diagrams represents a process carried out by a cell. This process is known as 38. The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called 39. Which org ...
Cell membrane
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.