Practice Test - For 1st Semester Final

Front

What is the typical energy transfer from producers to primary consumers in an ecosystem?

Back

Typically, only about 10% of the energy (100 J) captured by producers is passed on to primary consumers.

Front

What is the optimal temperature for enzyme activity based on a graph?

Back

The optimal temperature for enzyme activity is 30°C.

Front

What conclusion can be drawn about the optimum pH of an enzyme from a graph?

Back

The optimum pH of the enzyme is 6.6.

Front

What are the two variables typically represented on a line graph?

Back

The two variables are the independent variable and the dependent variable.

Front

Which vessel in the stem transports water from the roots to the leaves?

Back

The xylem transports water from the roots to the leaves.

Front

What is the role of producers in an ecosystem?

Back

Producers capture energy from sunlight and convert it into chemical energy through photosynthesis.

Front

Define primary consumers in an ecosystem.

Back

Primary consumers are organisms that eat producers; they are typically herbivores.

Front

What is the significance of the 10% rule in energy transfer?

Back

The 10% rule states that only about 10% of the energy from one trophic level is transferred to the next level.

Front

What does a line graph typically represent?

Back

A line graph represents the relationship between two variables, showing how one variable changes in relation to another.

Front

What is the function of phloem in plants?

Back

Phloem transports nutrients and sugars produced by photosynthesis from the leaves to other parts of the plant.