TRUE OR FALSE The atmosphere is a relatively thin layer of gases that form Earth’s outermost layer.
Mountains are an example of the biosphere.
The crust is less than 1% of the Earth’s mass.
Ponds are an example of the geosphere.
Earth’s four systems include: geosphere, atmosphere, biosphere, and lithosphere.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.