Biology EOC Review

Front

The sodium potassium pump is an example of ______________________ transport.

Back

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

Front

Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). What is the probable genotypic ratio of their children if one parent is heterozygous?

Back

50% Hh : 50% hh. This is determined using a Punnett square.

Front

Which best explains why muscle cells are different from blood cells?

Back

Different genes are activated in muscle cells than in blood cells, leading to different functions and characteristics.

Front

The yucca plant and yucca moth have a relationship where both benefit. What is this relationship called?

Back

Mutualism is a type of symbiotic relationship where both species benefit.

Front

What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption.

Front

What is secondary succession?

Back

Secondary succession is the process of ecological change that occurs in an area where soil exists but has been disturbed, such as after a forest fire.

Front

Define active transport in cells.

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

Front

What is the role of the sodium-potassium pump?

Back

The sodium-potassium pump helps maintain the electrochemical gradient across the cell membrane by pumping sodium out and potassium into the cell.

Front

What is a Punnett square used for?

Back

A Punnett square is a diagram used to predict the genotypic and phenotypic ratios of offspring from genetic crosses.

Front

Explain the concept of gene expression.

Back

Gene expression is the process by which information from a gene is used to synthesize a functional gene product, usually a protein.