Entries by Daphne Hanson

The quartz sandstone

Evaluate the following statements. Quartz sandstone is a common sedimentary rock because quartz is the mot abundant mineral in the Earth’s crust. Fissility is a feature most commonly associated with shales. Oolitic limestone is an example of an organic carbonate rock Gypsum is deposited only by non-biological, chemical precipitation

The Bernoulli effect

Describe the Bernoulli effect and how it lifts grains off a bed at the base of the water flow. You can use either words or a diagram or even both of them. Include a) pressure variations around the grain b) the force of gravity c) the force of lift from the pressure difference d) what […]

The phases of the cytochrome

Draw both Phases of the cytochrome P-450 mediated transformation of environmental pollutants. Include the following in your drawing: Enzymes participating in each Phase Important functional groups and chemical reactivities Final products of each Phase Major biochemical reactions catalyzed in each Phase.

The high-energy nectar

A flowering plant produces high-energy nectar to attract bees. When the bees feed on the nectar, bits of pollen stick to them and are transferred to another flower. Which of the following best defines the ecological interaction between the flowering plant and the bees?