Cell Mechanics
... A family of proteins > 50 members Common structure: central a helical domain of >300 residues form coil; dimers assembled into tetramers; forming protofilaments; bundle into rope-like structure, 8 protofilaments with persistent length = 1 um Long-term stability & high resistance to solubility in sal ...
... A family of proteins > 50 members Common structure: central a helical domain of >300 residues form coil; dimers assembled into tetramers; forming protofilaments; bundle into rope-like structure, 8 protofilaments with persistent length = 1 um Long-term stability & high resistance to solubility in sal ...
NERVE IMPULSE
... • If neurons do not respond correspondingly to intensity of stimuli, how do we know the difference between warm and hot? • The more intense the stimulus, the greater the frequency of impulses – If a warm glass rod is placed in your hand, sensory impulses sent to brain at slow rate – If hot glass rod ...
... • If neurons do not respond correspondingly to intensity of stimuli, how do we know the difference between warm and hot? • The more intense the stimulus, the greater the frequency of impulses – If a warm glass rod is placed in your hand, sensory impulses sent to brain at slow rate – If hot glass rod ...
THINK ABOUT IT
... Microtubules Microtubules are hollow structures made up of proteins known as tubulins. Important in cell division, where they form a structure known as the mitotic spindle, which helps to separate chromosomes. In animal cells, structures known as centrioles are also formed from tubulins Microtubules ...
... Microtubules Microtubules are hollow structures made up of proteins known as tubulins. Important in cell division, where they form a structure known as the mitotic spindle, which helps to separate chromosomes. In animal cells, structures known as centrioles are also formed from tubulins Microtubules ...
Genetics 3.3 and 3.4
... He observed that the egg and sperm have half the number of chromosomes as the body cells ...
... He observed that the egg and sperm have half the number of chromosomes as the body cells ...
Formation of Wound Tissue of Gracilaria chorda Holmes
... parallel to the cut surface. As a result, new cells formed along the cut surface {Fig. 12). It was confirmed by the squash method that each cell had a single nucleus. Each cell was connected by a primary pit connection with its mother cell (Fig. 13). Multivesicular bodies with double membrane struct ...
... parallel to the cut surface. As a result, new cells formed along the cut surface {Fig. 12). It was confirmed by the squash method that each cell had a single nucleus. Each cell was connected by a primary pit connection with its mother cell (Fig. 13). Multivesicular bodies with double membrane struct ...
********* 1 - Botanik in Bonn
... • The myosin family of motor proteins • Structure domains of myosins 2. Myosin IX • Structure • Myosin XI involvement in cytoplasmic streaming • Mutual regulation between actin and myosin XI? 3. Myosin VIII • Structure ...
... • The myosin family of motor proteins • Structure domains of myosins 2. Myosin IX • Structure • Myosin XI involvement in cytoplasmic streaming • Mutual regulation between actin and myosin XI? 3. Myosin VIII • Structure ...
Dr. Ken Teter`s and Carly Bader`s Presentation
... We are seeking undergraduate students from Furman University, Morehouse College, Emory University, Louisiana State University, Florida International University, University of Miami and the University of Florida interested in displaying original artwork, including visual, musical, dance and theatre p ...
... We are seeking undergraduate students from Furman University, Morehouse College, Emory University, Louisiana State University, Florida International University, University of Miami and the University of Florida interested in displaying original artwork, including visual, musical, dance and theatre p ...
Slide 1
... MEMBRANE FLUIDITY can be observed using fluorescent dyes. - Different dyes can label different proteins - Proteins can move laterally quite easily and this can be observed Note: only certain proteins are able to flip to the other membrane bilayer via a flippase and this is quite specialized. ...
... MEMBRANE FLUIDITY can be observed using fluorescent dyes. - Different dyes can label different proteins - Proteins can move laterally quite easily and this can be observed Note: only certain proteins are able to flip to the other membrane bilayer via a flippase and this is quite specialized. ...
Protozoa
... All protozoa are heterotrophs. They mainly feed on bacteria, but they also eat other protozoa and sometimes fungi. Some protozoa absorb food through their cell tissues. Others surround food and engulf it. Others have openings called mouth pores into which they sweep food. All protozoa digest their f ...
... All protozoa are heterotrophs. They mainly feed on bacteria, but they also eat other protozoa and sometimes fungi. Some protozoa absorb food through their cell tissues. Others surround food and engulf it. Others have openings called mouth pores into which they sweep food. All protozoa digest their f ...
2-Cell Injury L1, 2008
... ATP depletion and decreased ATP synthesis are frequently associated with both hypoxic and chemical (toxic) injury Depletion of ATP to <5% to 10% of normal levels has widespread effects on many critical cellular systems: ◦ Plasma membrane energy-dependent sodium pump is reduced, resulting in cell swe ...
... ATP depletion and decreased ATP synthesis are frequently associated with both hypoxic and chemical (toxic) injury Depletion of ATP to <5% to 10% of normal levels has widespread effects on many critical cellular systems: ◦ Plasma membrane energy-dependent sodium pump is reduced, resulting in cell swe ...
Chapter 3 Cellular Structure and Function Worksheets
... The phospholipid bilayer consists of two layers of phospholipids (left), with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior. A single phospholipid molecule is depicted on the right. (Image courtesy of CK-12 Foundation and under the Creative Commons license CC- ...
... The phospholipid bilayer consists of two layers of phospholipids (left), with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior. A single phospholipid molecule is depicted on the right. (Image courtesy of CK-12 Foundation and under the Creative Commons license CC- ...
Biopharmaceutics
... inhalation, rectal), then the drug must first be absorbed into the systemic circulation ( means cross the membrane ) and then diffuse or be transported to the site of action before eliciting biological and therapeutic activity. Bioavailability of the drug at the absorption site depend on two paramet ...
... inhalation, rectal), then the drug must first be absorbed into the systemic circulation ( means cross the membrane ) and then diffuse or be transported to the site of action before eliciting biological and therapeutic activity. Bioavailability of the drug at the absorption site depend on two paramet ...
Genetics - WordPress.com
... Ends with pinching off of the cell membrane resulting in two cells Vocabulary: Mitotic spindle – fibres which help move chromatids to proper positions. Centrosome – connects to mitotic spindle to help pull chromatids to opposite poles ...
... Ends with pinching off of the cell membrane resulting in two cells Vocabulary: Mitotic spindle – fibres which help move chromatids to proper positions. Centrosome – connects to mitotic spindle to help pull chromatids to opposite poles ...
Sliding Filament Theory - Skeletal Muscle The sliding filament theory
... 1. A nervous impulse arrives at the neuromuscular junction, which causes a release of a chemical called Acetylcholine. The presence of Acetylcholine causes the depolarisation of the motor end plate which travels throughout the muscle by the transverse tubules, causing Calcium (Ca+) to be released fr ...
... 1. A nervous impulse arrives at the neuromuscular junction, which causes a release of a chemical called Acetylcholine. The presence of Acetylcholine causes the depolarisation of the motor end plate which travels throughout the muscle by the transverse tubules, causing Calcium (Ca+) to be released fr ...
Biopharma Dr Rana L2
... inhalation, rectal), then the drug must first be absorbed into the systemic circulation ( means cross the membrane ) and then diffuse or be transported to the site of action before eliciting biological and therapeutic activity. Bioavailability of the drug at the absorption site depend on two paramet ...
... inhalation, rectal), then the drug must first be absorbed into the systemic circulation ( means cross the membrane ) and then diffuse or be transported to the site of action before eliciting biological and therapeutic activity. Bioavailability of the drug at the absorption site depend on two paramet ...
Types of Reproduction
... or limbs. It is most common in animals that do not have a backbone like worms and starfish. Sometimes, if an organism loses a limb or if the organism is split into two parts, both parts will regenerate the missing pieces, creating two organisms from one. ...
... or limbs. It is most common in animals that do not have a backbone like worms and starfish. Sometimes, if an organism loses a limb or if the organism is split into two parts, both parts will regenerate the missing pieces, creating two organisms from one. ...
The Nervous System - Linn-Benton Community College
... (c) Decay of membrane potential with distance: Because current is lost through the “leaky” plasma membrane, the voltage declines with distance from the stimulus (the voltage is decremental ). Consequently, graded potentials are short-distance signals. ...
... (c) Decay of membrane potential with distance: Because current is lost through the “leaky” plasma membrane, the voltage declines with distance from the stimulus (the voltage is decremental ). Consequently, graded potentials are short-distance signals. ...
LS1a Problem Set #4
... fluidity of a membrane depends both on temperature and on its composition. One component that can be varied in membrane composition is the degree of saturation of the fatty acid tails. Fewer cis-double bonds will allow more van der Waals interactions between the fatty acid tails, and the membrane wi ...
... fluidity of a membrane depends both on temperature and on its composition. One component that can be varied in membrane composition is the degree of saturation of the fatty acid tails. Fewer cis-double bonds will allow more van der Waals interactions between the fatty acid tails, and the membrane wi ...
Types of Reproduction
... or limbs. It is most common in animals that do not have a backbone like worms and starfish. Sometimes, if an organism loses a limb or if the organism is split into two parts, both parts will regenerate the missing pieces, creating two organisms from one. ...
... or limbs. It is most common in animals that do not have a backbone like worms and starfish. Sometimes, if an organism loses a limb or if the organism is split into two parts, both parts will regenerate the missing pieces, creating two organisms from one. ...
6. apoptosis
... 2. What derivative of vitamin A can cause birth defects in high doses? 3. Give one difference between apoptosis and necrosis. 4. What would happen if the rate of apoptosis exceeded the rate of mitosis? Use whiteboards to show your answers ...
... 2. What derivative of vitamin A can cause birth defects in high doses? 3. Give one difference between apoptosis and necrosis. 4. What would happen if the rate of apoptosis exceeded the rate of mitosis? Use whiteboards to show your answers ...
formation of cell coat material for the whole surface of columnar cells
... In addition to the epithelial cells of the duodenum, many other cell types in the fucose 3Hinjected animals were shown by light microscope radioautography to incorporate label at early times in the Golgi region . Some of these cells (liver, epididymis, stratified epithelia, and others) later exhibit ...
... In addition to the epithelial cells of the duodenum, many other cell types in the fucose 3Hinjected animals were shown by light microscope radioautography to incorporate label at early times in the Golgi region . Some of these cells (liver, epididymis, stratified epithelia, and others) later exhibit ...
Endosymbiosis: Eukaryotes and their Organelles
... because when searching the DNA sequences of this archaea bacterium, it shows no relation to eukaryotes (Martin, 2005). The theories about how the nucleus came about agree that the nucleus probably originated from archaea bacteria (Fedorov, & Hartman, 2001; Martin, 2001; Gray, 1989). There are also d ...
... because when searching the DNA sequences of this archaea bacterium, it shows no relation to eukaryotes (Martin, 2005). The theories about how the nucleus came about agree that the nucleus probably originated from archaea bacteria (Fedorov, & Hartman, 2001; Martin, 2001; Gray, 1989). There are also d ...
Document
... types of bonds are formed? Know the structure of proteins? What are the functions of proteins? What are nucleic acids? What are they made of? What are their functions? Chapter 6 – The Cell What is the cell theory? What limits cell size? What are the differences between prokaryotic and eukaryotic cel ...
... types of bonds are formed? Know the structure of proteins? What are the functions of proteins? What are nucleic acids? What are they made of? What are their functions? Chapter 6 – The Cell What is the cell theory? What limits cell size? What are the differences between prokaryotic and eukaryotic cel ...
Section 1 Passive Transport Chapter 5 Diffusion Passive transport
... – In hypertonic environments, water leaves the plant cells causing the cell membrane to pull away from the cell wall in a condition called plasmolysis. ...
... – In hypertonic environments, water leaves the plant cells causing the cell membrane to pull away from the cell wall in a condition called plasmolysis. ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.