What types of molecules are moving across the membrane?

What types of molecules are moving across the membrane? Only the smallest molecules like water, carbon dioxide, and oxygen can freely diffuse across cell membranes. Larger molecules or charged molecules often require an input of energy to be transported into the cell. What are the types of movement of particles across the cell membrane? There […]

What types of molecules are moving across the membrane? Read More »

How many nukes does Russia have left?

How many nukes does Russia have left? Russian Federation (originally the Soviet Union) Total tests 715 detonations Peak stockpile 46,000 warheads (1975) 45,000 warheads (1990) Current stockpile 5,889 total Current strategic arsenal 1,674 How likely is Russia to use nukes? “It is very unlikely” that Russia would employ nuclear weapons, Director of National Intelligence Avril

How many nukes does Russia have left? Read More »

How can you tell the difference between gas and baby moving?

How can you tell the difference between gas and baby moving? Those initial movements might feel like small flutters or gentle tumbles, and initially, they may be hard to register. Sometimes, it can be difficult to discern your baby’s movements from gas but remember: gas passes. If you feel continued movement, that’s probably your baby

How can you tell the difference between gas and baby moving? Read More »