Cell Theory, Structure, and Function

Dr. Martinez examined the cells of four different organisms for the presence of various cellular structures. His observations are recorded in the table below (An X indicates that the structure is present in the cell). Using the information in the table below. Which of the cells most likely came from an animal?

• 1 only

• 1 and 3 only

• 4 only

• 2 and 4 only

Which cell type(s) have cell walls?

• animal and plant cells

• bacteria and animal cells

• plant cells only

• plant cells, animal cells, and bacteria cells

A student in a science laboratory makes a chart to document the structures seen in three different cell samples. The student hypothesizes that Sample 3 is a plant cell. Which structure in Sample 3 BEST supports this hypothesis?

• nucleus

• cell wall

• mitochondria

• chloroplast

Which change to an animal cell is most likely to be caused by the cell membrane not functioning properly?

• The cytoplasm becomes filled with waste materials.

• The cell becomes unable to use sunlight to produce food.

• The activities of other parts of the cell can no longer be controlled.

• The cell can no longer produce enough energy to perform its normal functions.

What is the function of a cell wall?

• to protect and support the cell

• to perform different functions in each cell

• to prevent water from passing through it

• to prevent oxygen from entering the cell

Which organelle changes energy from food molecules into energy the cell can use?

• lysosomes

• mitochondria

• ribosomes

• nucleus

The green organelles responsible for producing sugar for plant cells from sunlight are called?

• vacuoles

• ribosomes

• lysosomes

• chloroplast

Structure A- I protect and support the cell. What am I?

• cell wall

• cell membrane

• cytoplasm

• vacuole

Structure C- I hold all the organelles in place. What am I?

• cell wall

• cell membrane

• cytoplasm

• vacuole

Structure F- I make proteins , and I'm found attached to the endoplasmic reticulum or free floating. What am I?

• rough endoplasmic reticulum

• smooth endoplasmic reticulum

• golgi apparatus

• mitochondria