Biology Keystone Exam Review

Front

What do the cells of E. coli bacteria and an elephant have in common?

Back

Both have ribosomes that assemble proteins.

Front

What happens to enzymes when they are heated to a high temperature?

Back

They denature.

Front

What is incomplete dominance in inheritance patterns?

Back

A mixture of both traits is expressed in the offspring.

Front

How do fish maintain homeostasis in their bodies?

Back

By exchanging gases through their gills to regulate oxygen levels.

Front

What is the correct order of organization of living things from smallest to largest?

Back

Atom, molecule, cells, tissues, organs, organ systems, organism.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes assemble proteins.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where enzymes lose their functional shape due to high temperature or pH changes.

Front

What is co-dominance in genetics?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed.

Front

What role do mitochondria play in a cell?

Back

Mitochondria produce energy through cellular respiration.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment.