Life Science Benchmark Review

Front

What is the protective outer cover of all cells that controls what goes in and out of the cell?

Back

cell membrane

Front

Which cell part is a gelatin-like mixture that flows inside the cell?

Back

cytoplasm

Front

Any structure inside the cell that performs a specific function.

Back

organelle

Front

This directs and controls all the activities in the cell.

Back

nucleus

Front

This releases energy stored in food; the "powerhouse of the cell"

Back

mitochondria

Front

Found only in plants; this converts the sun's energy into food during photosynthesis.

Back

chloroplast

Front

A brain is an example of which level of organization? Options: Organ, Cell, Tissue, Organ system

Back

Organ

Front

This is an example of which level of organization? Cell, Tissue, Organ, Organ System

Back

Organ System

Front

According to cell theory, all _____________________ are made of one or more cells?

Back

organisms

Front

According to cell theory, cells come from _________________.

Back

preexisting cells