Cell Structures and Functions Part 1

A plasma membrane, the membrane that surrounds a cell, is selectively permeable. This means that ____.

• plasma membranes must be very thick

• glucose cannot enter the cell

• anything can pass into or out of a cell

• the plasma membrane regulates the passage of material into and out of the cell

The nucleus of a cell _____.

• Manufactures protein

• Transports materials out of the cell

• Contains genetic information

• Conducts photosynthesis

Which cell feature is responsible for making proteins?

• lysosomes

• ribosomes

• nucleus

• nucleolus

Located within the nucleus, it is responsible for producing ribosomes.

• nuclear pore

• nuclear envelope

• DNA

• nucleolus

This structure is called the power-house of the cell because it generates the cell’s energy.

• chloroplast

• plastids

• nucleus

• mitochondria

This is a stack of thylakoids that forms a group of coin-like structures.

• stroma

• granum

• chlorophyll

• lumen

These are brightly colored plastids that are typically found in the fleshy fruits, flowers as well as various other pigmented parts of the plant such as leaves.

• Chromoplasts

• Leucoplasts

• Chloroplasts

• Elaioplasts

The inner membrane of the mitochondria folds over many times and creates layered structures called ___.

• cristae

• matrix

• intermembrane space

• lumen

Which of the following do NOT have a cell wall?

• Plant cells

• All bacterial cells

• fungi

• animal cells

Proteins embedded in the cell membrane function to ___.

• transport materials in and out of the cell

• carry genetic information

• store excess water

• produce energy for the cell