Passive Transport - Liberty Union High School District
... Ex: Blood is a solution of cells, nutrients, oxygen, carbon dioxide, waste products, and other molecules floating in water ...
... Ex: Blood is a solution of cells, nutrients, oxygen, carbon dioxide, waste products, and other molecules floating in water ...
Welcome To Faculty of Veterinary Medicine, Mansoura University
... that catalyze reactions that provide the cells with most of its ATP (adenosine triphosphate). The matrix contains enzymes of Krebs cycle and fatty acid oxidation. The inner membrane contains the cytochromes and the enzymes involved in ...
... that catalyze reactions that provide the cells with most of its ATP (adenosine triphosphate). The matrix contains enzymes of Krebs cycle and fatty acid oxidation. The inner membrane contains the cytochromes and the enzymes involved in ...
The Cell
... Smallest & most numerous organelles Some float freely in cytoplasm Some are attached to the Rough ER Their function is to make proteins out of amino acids ...
... Smallest & most numerous organelles Some float freely in cytoplasm Some are attached to the Rough ER Their function is to make proteins out of amino acids ...
The cell - WordPress.com
... Other glycoproteins have a special configuration that allows them to act as a receptor for a chemical messenger like a hormone. Some plasma membrane proteins form channels through which certain substances can enter cells, while others are carriers are involved in the passage of molecules through the ...
... Other glycoproteins have a special configuration that allows them to act as a receptor for a chemical messenger like a hormone. Some plasma membrane proteins form channels through which certain substances can enter cells, while others are carriers are involved in the passage of molecules through the ...
Looking Inside Cells
... The nucleus is the cell’s control center, directing all of the cell’s activities. Instructions that guide the cell’s activities are contained in the DNA. DNA is found in the nucleus of the cell. ...
... The nucleus is the cell’s control center, directing all of the cell’s activities. Instructions that guide the cell’s activities are contained in the DNA. DNA is found in the nucleus of the cell. ...
Lec.8 Lysosomes
... Peroxisomes are involved in at least 50 different biochemical reactions in the body. Types of organic polymers that are broken down by peroxisomes include amino acids, uric acid, and fatty acids. Peroxisomes in liver cells help to detoxify alcohol and other harmful substances through oxidation. In a ...
... Peroxisomes are involved in at least 50 different biochemical reactions in the body. Types of organic polymers that are broken down by peroxisomes include amino acids, uric acid, and fatty acids. Peroxisomes in liver cells help to detoxify alcohol and other harmful substances through oxidation. In a ...
Cell Transport - Teacher Pages
... outside; water moves into the cell Hypertonic – concentration of a dissolved substance is higher outside the cell than inside; water moves out of the cell ...
... outside; water moves into the cell Hypertonic – concentration of a dissolved substance is higher outside the cell than inside; water moves out of the cell ...
Now starts the fun stuff… Cell structure and function Cell Theory
... – It controls the exchange of substances between the nucleus and the cytoplasm. Components of the nucleus Inside the nucleus are several components that have specific functions. One such component is the nucleolus. The nucleolus is a dense cluster of RNA and proteins which is used in the assembly of ...
... – It controls the exchange of substances between the nucleus and the cytoplasm. Components of the nucleus Inside the nucleus are several components that have specific functions. One such component is the nucleolus. The nucleolus is a dense cluster of RNA and proteins which is used in the assembly of ...
A TOUR OF THE CELL
... a family of closely related plant organelles called plastids A plastid’s function depends mostly upon which pigments are present Chloroplasts contain the green pigment chlorophyll Chloroplasts also contain enzymes and other molecules that function in the photosynthetic production of sugar ...
... a family of closely related plant organelles called plastids A plastid’s function depends mostly upon which pigments are present Chloroplasts contain the green pigment chlorophyll Chloroplasts also contain enzymes and other molecules that function in the photosynthetic production of sugar ...
cell_variety_lab_
... Background: Cell theory states that cells are the basic unit of life; this means that all living things are made of one or more cells. Cells have some basic similarities in their structures, however cells have evolved to have many different functions; human skin cells have a very different function ...
... Background: Cell theory states that cells are the basic unit of life; this means that all living things are made of one or more cells. Cells have some basic similarities in their structures, however cells have evolved to have many different functions; human skin cells have a very different function ...
2. Cell Transport Mechanisms
... out and K+ (potassium ions) in against strong concentration gradients. Called Na+-K+ Pump ...
... out and K+ (potassium ions) in against strong concentration gradients. Called Na+-K+ Pump ...
Diffusion, Osmosis, and Active Transport
... molecules can pass through the cell membrane in each case.) ...
... molecules can pass through the cell membrane in each case.) ...
Bacterial Cell Walls Contain Peptidoglycans
... • Others are not dependent on glycans • Some are glycan-dependent in one cell type but not in another • Some glycosylation sites are more important than others – Aid in certain sorting events • In later secretory pathway of glycoproteins in Golgi – Structural features of glycans act as destination l ...
... • Others are not dependent on glycans • Some are glycan-dependent in one cell type but not in another • Some glycosylation sites are more important than others – Aid in certain sorting events • In later secretory pathway of glycoproteins in Golgi – Structural features of glycans act as destination l ...
IB Biology Chapter 1 Unit Test Study Outline
... What is the evidence supporting the endosymbiotic theory for mitochondria and chloroplasts? What elements/compounds were present in earth’s early atmosphere? What is an aerobic and anaerobic mean and how does it relate to the formation of mitochondria? 1.6 - Cell Division Why do cells divide? When i ...
... What is the evidence supporting the endosymbiotic theory for mitochondria and chloroplasts? What elements/compounds were present in earth’s early atmosphere? What is an aerobic and anaerobic mean and how does it relate to the formation of mitochondria? 1.6 - Cell Division Why do cells divide? When i ...
Cells
... – break down excess H2O2 with the enzyme catalase – break down fatty acids into acetyl groups ...
... – break down excess H2O2 with the enzyme catalase – break down fatty acids into acetyl groups ...
A1981LH86500001
... been so puzzlingly empty. The newly found microtubules were in an appropriate place to influence wall deposition and, moreover, they mirrored in orientation the adjacent microfibrils of cellulose being deposited in the walls Once we tied the arrangement of these structures in the cytoplasm to a prob ...
... been so puzzlingly empty. The newly found microtubules were in an appropriate place to influence wall deposition and, moreover, they mirrored in orientation the adjacent microfibrils of cellulose being deposited in the walls Once we tied the arrangement of these structures in the cytoplasm to a prob ...
High concentration
... No energy is needed for carbon dioxide to diffuse out of the cell. • High concentration of carbon dioxide inside of cell • Low concentration of carbon dioxide outside the cell • Diffusion of carbon dioxide out of cell • Equal concentration of carbon dioxide in and outside cell ...
... No energy is needed for carbon dioxide to diffuse out of the cell. • High concentration of carbon dioxide inside of cell • Low concentration of carbon dioxide outside the cell • Diffusion of carbon dioxide out of cell • Equal concentration of carbon dioxide in and outside cell ...
Plant Cell Animal Cell
... Nucleus The nucleus directs all of the cell‘s activities, including reproduction. Endoplasmic Reticulum This network of passageways carries materials from one part of the cell to another. ...
... Nucleus The nucleus directs all of the cell‘s activities, including reproduction. Endoplasmic Reticulum This network of passageways carries materials from one part of the cell to another. ...
Cell membrane
... • Only in plant cells • Surrounded by membrane • Contains chemical chlorophyll • Where photosynthesis takes place (make food (sugars) for plant) • Those sugars are used to build the plant or go to mitochondria to make energy ...
... • Only in plant cells • Surrounded by membrane • Contains chemical chlorophyll • Where photosynthesis takes place (make food (sugars) for plant) • Those sugars are used to build the plant or go to mitochondria to make energy ...
1. To enter or leave a cell, substances must pass through a. a
... used to build a cell's plasma membrane. The protein in the membrane was actually slightly different from the protein made in the ER. The protein was probably changed in the a. Golgi apparatus. b. smooth ER. c. mitochondrion. d. nucleus. e. chloroplast. 11. The electron microscope has been particular ...
... used to build a cell's plasma membrane. The protein in the membrane was actually slightly different from the protein made in the ER. The protein was probably changed in the a. Golgi apparatus. b. smooth ER. c. mitochondrion. d. nucleus. e. chloroplast. 11. The electron microscope has been particular ...
Exchange with Environment
... • Particles travel from where they are CROWDED (High Concentration) to areas of NON-CROWDED (Low Concentration) • Diffusion also happens in and around living cells! • Cells do not need to use ENERGY for diffusion ...
... • Particles travel from where they are CROWDED (High Concentration) to areas of NON-CROWDED (Low Concentration) • Diffusion also happens in and around living cells! • Cells do not need to use ENERGY for diffusion ...
Cells and Cell Theory
... bacteria. It is possible that many parts of the cell were once individual bacteria, that discovered it was easier to survive together, then a part ...
... bacteria. It is possible that many parts of the cell were once individual bacteria, that discovered it was easier to survive together, then a part ...
Essentials of Biology Sylvia S. Mader Chapter 4 Lecture Outline
... Break down carbohydrates to produce adenosine triphosphate (ATP) Found in BOTH plants and animals Usually only visible under an electron microscope Bounded by double membrane Inner membrane folds called cristae Increase surface area ...
... Break down carbohydrates to produce adenosine triphosphate (ATP) Found in BOTH plants and animals Usually only visible under an electron microscope Bounded by double membrane Inner membrane folds called cristae Increase surface area ...
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.