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Secondary active transport
Secondary active transport

... _ transport that need energy to transport molecule against its concentration gradient , energy obtained come from hydrolysis of adenosine tri phosphate (ATP) ---> that we called primary active transport Active transport divided into : 1- primary active transport(using energy directly) 2- secondary a ...
Summary of methods to assess mRNA stability in eukaryotic cells
Summary of methods to assess mRNA stability in eukaryotic cells

... induction may alter cell physiology ...
Chapter 4
Chapter 4

... outermost region; a hook attaches to the filament; the basal body, which anchors the flagellum to the cell wall and plasma membrane The basal body is a small central rod inserted into a series of rings In gram negative bacteria, there are two pair of rings In gram positive bacteria, only the inner p ...
Biology - Essay.org
Biology - Essay.org

... they look like they are irregularly shaped, colourless bodies, much smaller than the red cells. Platelets are not capable of moving on their own but float along in the blood stream. They have an important function in the formation of a blood clot. Now enough of my babbling. At this moment I am movin ...
Strand 3 - Biological Sciences
Strand 3 - Biological Sciences

... 2. Which of the following is a term used to describe the movement of water across a cell membrane? A. facilitated diffusion B. active transport C. homeostasis D. osmosis 3. Which of the following describes a plant? A. eukaryotic and autotrophic B. prokaryotic and heterotrophic C. eukaryotic and het ...
Recognize and apply the definition of diffusion
Recognize and apply the definition of diffusion

... the same place at the same time  Communities: all the populations of different species that live in the same place at the same time  Ecosystems: populations of plants and animals that interact with each other in a given area and with the abiotic components of that area  Biosphere: a portion of th ...
Ryabch example
Ryabch example

... Electron microscopic examination of infected cell cultures and cells of chick chorionallantoic membrane revealed that morphologic parameters of assembly were identical for both CPXV and all VARV strains in all examined cells. Both viruses produced firstly spherical immature particles, which matured ...
Chapter 12. Regulation of the Cell Cycle
Chapter 12. Regulation of the Cell Cycle

...  CDKs & cyclin drive cell from one phase to next in cell cycle ...
Insulin-Producing Stem Cells Could Provide Lasting Diabetes
Insulin-Producing Stem Cells Could Provide Lasting Diabetes

... hard enough to drive the blood sugar down, you end up getting into trouble with insulin reactions,” Weir said. “The blood sugar goes too low and that’s dangerous.” But S7 cells have some challenges to overcome before they can replace current treatments. For one, it can be difficult to control the de ...
Cell Boundaries - cloudfront.net
Cell Boundaries - cloudfront.net

... -allows some things in and out of the cell. The cell membrane can also be referred to as a lipid bilayer (two distinct layers). Each layer is made of phospholipids. Each phospholipid is comprised of a hydrophilic (water attracting) head and a hydrophobic (water repelling) tail. The cell membrane is ...
Label Animal/ Plant cells worksheet File
Label Animal/ Plant cells worksheet File

... Structure that can store material such as water or other nutrients. In plant cells it is large and helps maintain cell shape. (Animal ...
Section 3
Section 3

... membrane, you will find some proteins that act as passageways into and out of the cell. Objects that are too large to directly pass into and out of the cell must enter or leave by way of these proteins. This can occur by passive or active transport. Passive Transport This occurs where the substance ...
7.7AC: Situaüons of Force Part I: Simple Machines Part I: Simple
7.7AC: Situaüons of Force Part I: Simple Machines Part I: Simple

... 1.  Name
two
ways
that
fric)on
can
be
helpful
in
everyday
life.
 
________________________________________________________________________________
 
________________________________________________________________________________
 2.
 
Name
two
ways
that
fric)on
may
be
harmful.
 
___________________ ...
Chapter Excerpt
Chapter Excerpt

... The endoplasmic reticulum (ER) is folded and has a large surface area. It is the “roadway” of the cell and allows for transport of materials through and out of the cell. There are two types of ER: smooth and rough. Smooth endoplasmic reticula contain no ribosomes on their surface and are the site of ...
Human body and disease
Human body and disease

... When you breathe in, air moves down your throat and into your lungs. Oxygen is taken in through the thin lining of the lungs. Carbon dioxide is removed from your body. Then the air you breathe out has less oxygen, than the air you breathed in. It has more carbon dioxide. ...
Saving the Day for a Cell.
Saving the Day for a Cell.

... Ribosomes make proteins, which are needed for the repairing of the membrane. The directions are carried out from the DNA, to the ribosomes on the ER. They make the proteins, fats, and other materials. For example, the ribosomes will make: MM, EMBB, RRAA, NNE. The free ribosomes make fatty acids: CCC ...
Biology I Section 9.3 SQ3R Quiz
Biology I Section 9.3 SQ3R Quiz

... 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. Cancer is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause ca ...
Cells and Systems
Cells and Systems

... Cell theory refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the mid 17th century was made possible by advances in microscopy. This theory is one of the foundations of biology. The theory says that new cells are formed from other ...
Ch. 27.3
Ch. 27.3

... Body muscles part of the hydrostatic skeleton  Longitudinal muscles run from front of worm to the rear; contraction  Circular muscles wrap around each body segment; contract to make worm longer and thinner ...
Looking for cytoskeleton-damaging agents
Looking for cytoskeleton-damaging agents

...  The filaments of the bundles and networks are connected by actin-cross-linking proteins ...
Respiratory System
Respiratory System

... muscle cells die and part of the heart muscle is damaged. Arteries that deliver oxygen to the heart may be blocked and without oxygen, heart muscle cells die quickly. When enough muscle cells die, the heart may stop. • Heart failure happens when the heart cannot pump enough blood to meet the body’s ...
File - Ricci Math and Science
File - Ricci Math and Science

... Result: Water moves equally in both directions (Dynamic Equilibrium) and the cell remains same size! ...
biology 165 respiratory system lab manual
biology 165 respiratory system lab manual

... NOTE: You may be asked to identify any structure, cell, tissue, or organ labeled in the figures/pictures within this lab manual. In addition, you may be asked to name one function of each labeled item and one location within the human body where it can be found. You are only responsible for the spec ...
Cell Communication in the Circulatory System
Cell Communication in the Circulatory System

... synthesis, the use of fat for energy, inhibits carbohydrate metabolism increases with exercise. Endorphins: Secreted by anterior pituitary gland - pain-blocking hormone increases with long-duration exercise. Epinephrine: Secreted by adrenal medulla - increases heart rate and contractions, constricts ...
Cell Membranes Osmosis and Diffusion
Cell Membranes Osmosis and Diffusion

... of solutes and a lower concentration of water than inside the cell. (High solute; Low water) ...
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Organ-on-a-chip

An organ-on-a-chip (OC) is a multi-channel 3-D microfluidic cell culture chip that simulates the activities, mechanics and physiological response of entire organs and organ systems. It constitutes the subject matter of significant biomedical engineering research, more precisely in bio-MEMS. The convergence of labs-on-chips (LOCs) and cell biology has permitted the study of human physiology in an organ-specific context, introducing a novel model of in vitro multicellular human organisms. One day, they will perhaps abolish the need for animals in drug development and toxin testing.Although multiple publications claim to have translated organ functions onto this interface, the movement towards this microfluidic application is still in its infancy. Organs-on-chips will vary in design and approach between different researchers. As such, validation and optimization of these systems will likely be a long process. Organs that have been simulated by microfluidic devices include the heart, the lung, kidney, artery, bone, cartilage, skin and more.Nevertheless, building valid artificial organs requires not only a precise cellular manipulation, but a detailed understanding of the human body’s fundamental intricate response to any event. A common concern with organs-on-chips lies in the isolation of organs during testing. ""If you don’t use as close to the total physiological system that you can, you’re likely to run into troubles"" says William Haseltine, founder of Rockville, Maryland. Microfabrication, microelectronics and microfluidics offer the prospect of modeling sophisticated in vitro physiological responses under accurately simulated conditions.
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