GA biology EOC practice semester 1

Front

What is the function of nucleic acids in the body cells of an organism?

Back

Nucleic acids direct the synthesis of proteins necessary for proper cell function.

Front

How does an enzymatic protein interact with its substrate during a chemical reaction?

Back

The enzyme has a specific structure so that only one substrate can bind to it. As the enzyme and substrate come together, the shape of the enzyme changes slightly to fit more snugly to the substrate.

Front

Why are signs stating 'take nothing but pictures' being placed in state parks?

Back

Humans cause damage to the stability of ecosystems by removing flowering trees and shrubs.

Front

What is active transport in the context of particle transport?

Back

Active transport is the movement of particles against their concentration gradient, requiring energy.

Front

What was the impact of reintroducing gray wolves to Yellowstone National Park?

Back

The presence of wolves decreased the elk population, allowing riverside trees to grow abundantly, which provided habitats for beavers and songbirds.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

Explain facilitated diffusion.

Back

Facilitated diffusion is the process of passive transport of molecules across a biological membrane via specific transmembrane integral proteins.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed in the process.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.