How does transport occur across biological membranes? How can I contract hydrophobic and hydrophilic compounds? How does water interact? What part within the chloroplasts captures the light? a) How do particles move in passive transport? b) How do particles move in active transport?
Cell membranes must have Small openings for small molecules Medium openings for medium molecules And the BIG stuff is a whole other story!! SMALL openings in between phospholipids for small molecules: Examples: Water Oxygen Carbon dioxide Alcohol...
Some particles do not have a gradient to move down into the cell so they travel through molecular pumps which can require energy expenditure. In addition, some molecules are too large to fit through the membrane or channels thus they are brought in by the membrane opening and ...
Describe the difference between active and passive transport across the membrane. Why do cells engage in active transport? A concentration gradient affects the direction that solutes diffuse. Describe how molecules move with respect to the concentration. ...
Thrusters like these kept Skylab in orbit, and are also used on the shuttle's manned maneuvering system. New engine designs are trying to find ways to accelerate ions or atomic particles to extremely high speeds to create thrust more efficiently. NASA's Deep Space-1 spacecraft was the first...
In the culinary world, cilantro is one of the most debated herbs in the kitchen. Aside from its controversial flavor, there are questions about the difference between cilantro and coriander. Are they the same ingredient or do they serve different purposes? Those answers can vary depending on whe...
They can make the weapon smaller in diameter. The smaller cross-sectional area means that the bomb has to move less material (earth or concrete) "out of the way" as it penetrates. They can make the bomb faster to increase its kinetic energy. The only practical way to do this is to ad...
How do these observations feed into the second key question raised in the introduction - What is the path for chloride ingress in concrete? So far, we have seen that the cement paste part and the ITZ of the concrete determine its chloride ingress resistance and that the w/b ratio and bind...
Molecules are selectively moved across the cell membrane - some molecules can move freely across while others may need proteins or energy to do so. Passive transport is the movement of molecules with the concentration gradient (from high to low) without the use of energy. Active transport mov...
While household fusion is still in the realm of science fiction, we might be closer than you think to generating electricity for our homes using trash, and plasma waste converters will do the job. At the most basic level, a plasma waste converter is a plasma torch applied to garbage. A ...