Final Exam Review

Front

What are phospholipids?

Back

Phospholipids are a class of lipids that are a major component of all cell membranes, forming lipid bilayers. They consist of two fatty acids, a glycerol unit, and a phosphate group.

Front

Where are phospholipids primarily found in a cell?

Back

Phospholipids are primarily found in the cell membrane.

Front

What is osmosis?

Back

Osmosis is the passive transport mechanism that involves the movement of water molecules from an area of high concentration to an area of low concentration through a semipermeable membrane.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solute particles from an area of high concentration to an area of low concentration, while osmosis specifically refers to the movement of water.

Front

What are genotypes?

Back

Genotypes are the genetic constitution of an individual, represented by the alleles inherited from the parents.

Front

What does a genotype of TT indicate?

Back

A genotype of TT indicates that the individual is homozygous dominant for a trait.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is adaptation in biology?

Back

Adaptation is a trait that helps an organism survive and reproduce in its environment.

Front

Why is nitrogen important for living organisms?

Back

Nitrogen is essential for living organisms because it is a key component of amino acids, which are the building blocks of proteins.

Front

What are amino acids?

Back

Amino acids are organic compounds that combine to form proteins, and they are essential for various biological processes.