All Unit Quiz Questions

Burning fossil fuels releases O2 into the atmosphere. (True/False)

False

Hurricanes and other severe precipitation events have started becoming weaker and less intense as a result of climate change. (True/False)

False

______ is a product of photosynthesis and is a carbon-based molecule that is the chief source of energy for most organisms.

Glucose

Correct sequence of events in cellular respiration

Glycolysis → preparatory reaction → citric acid cycle → electron transport chain

main difference in the formation of coal vs. the formation of natural gas and oil?

Natural gas and oil formed mainly from deposits of plants and animals living in oceans and coal formed mainly from the remains of plants and animals in swampy anoxic environments.

What property of phospholipids makes them suitable for the formation of the double layer found in membranes?

They have both a hydrophobic and a hydrophilic end.

molecules that assist enzymes in chemical reactions or assist in energy-related pathways.

Vitamins are

The principal role for simple sugars in living organisms is to __________.

create cellular energy

Photosynthesis takes carbon in from the atmosphere and uses it to form ______, the energy source for all plants and animals to use in cellular respiration.

glucose

In a biochemical reaction, the energy of activation is the amount of energy

required to start a reaction.

Hydrolysis of sucrose, a disaccharide, results in __________.

two monomers

A(An) ______ represents the interactions of biological communities and the abiotic factors within the inhabited location.

ecosystem

According to the evidence of climate change, there has been an overall ______ in water and temperature, and an overall ______ in ice formations.

increase, decrease

Since the 1950s, there has been a steady increase in the levels of atmospheric CO2 as a result of

increased human activity.

Why is ocean acidification problematic for some marine life?

It decreases the amount of carbonate in the oceans, making the creation of shells and other hard structures difficult for marine life.

Why is solar energy considered to be a better option in mitigating climate change?

It releases far less carbon dioxide into the atmosphere compared to burning fossil fuels.