Gilley B Practice Exam 1

Front

How many genes are shared between Oryza sativa, Arabidopsis thaliana and Populus trichocarpa?

Back

21,000 genes are shared among these species.

Front

How many electrons are shared between a covalent bond in hydrogen gas (H2)?

Back

2 electrons are shared in a covalent bond in H2.

Front

Which of the domains of life are eukaryotic and unicellular?

Back

Protists are the eukaryotic and unicellular domain of life.

Front

Life itself is an emergent property that shows greater __________ than predicted by the simple addition of its individual parts.

Back

complexity.

Front

In the context of emergent properties, when individual parts are combined together, __________ and more complex properties can exist.

Back

novel properties can exist.

Front

What is the process called when fats are formed from the covalent additions of fatty acids to glycerol?

Back

Dehydration synthesis.

Front

In the synthesis reactions that form a fat, how many molecules of water are generated?

Back

3 molecules of water are generated.

Front

What is the primary function of lipids in biological systems?

Back

Lipids serve as energy storage, structural components of cell membranes, and signaling molecules.

Front

Define covalent bond.

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What are fatty acids?

Back

Fatty acids are long hydrocarbon chains that are key components of lipids.