Unit 1 - LTU Biology

Front

How many levels of structure do nucleic acids have?

Back

Nucleic acids have 3 levels of structure: primary, secondary, and tertiary.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solute particles compared to another solution, leading to water moving out of cells.

Front

What elements make up all carbohydrates?

Back

Carbohydrates are made up of Carbon, Hydrogen, and Oxygen.

Front

What type of transport is diffusion?

Back

Diffusion is a passive transport process where molecules move from an area of higher concentration to an area of lower concentration.

Front

What is a monosaccharide?

Back

A monosaccharide is the simplest form of carbohydrates, consisting of a single sugar molecule, such as glucose or fructose.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a process where molecules pass through the cell membrane with the help of transport proteins.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is the primary structure of proteins?

Back

The primary structure of proteins is the sequence of amino acids in a polypeptide chain.

Front

What is the secondary structure of proteins?

Back

The secondary structure of proteins refers to the local folded structures that form within a polypeptide due to hydrogen bonding, such as alpha helices and beta sheets.

Front

What is the tertiary structure of proteins?

Back

The tertiary structure of proteins is the overall three-dimensional shape of a polypeptide, determined by interactions among various side chains.