Unit 2 – Cells Check for Understanding Name

Directions: Before class discussion, answer each multiple choice question using what you already know. During class discussion, write the correct answer in the after box and take notes to support each question.

1.  Which is an example of how the cell membrane of a tube worm maintains a stable environment?
A. It prevents salt from flowing in.
B. It allows large molecules to enter.
C. It allows the temperature to change quickly.
D. It communicates with other cell membranes.
My Answer / Correct Answer / Notes

2.  Which part of the cell membrane is polar and allows the cell to exist in water?

A. Phosphate groups

B. Fatty acid chains

C. Globular proteins

D. Nucleus

My Answer / Correct Answer / Notes

3.  Bacteria consist of a single cell and have no nucleus. What are bacteria called?

A. Prokaryotes

B. Organelles

C. Multicellular

D. Eukaryotes

My Answer / Correct Answer / Notes
4.  A gardener places extra nutrients in the soil of a flower bed to make the flower grow faster. Through which tissue would the nutrients first move into the flower?
A. Xylem
B. Phloem
C. Chloroplasts
D. Amoeba
My Answer / Correct Answer / Notes

5.  How does phloem differ from xylem?

A. Phloem has a two-way flow.

B. Phloem is made of cells.

C. Phloem transports chloroplasts.

D. Phloem is found in the roots.

My Answer / Correct Answer / Notes

6.  How do the structures within a cell allow it to specialize?

A. The structures stop the cell from reproducing.

B. The structures cause the cell to die more quickly.

C. The structures keep the cell from moving.

D. The structures allow the cell to perform specific functions.

My Answer / Correct Answer / Notes

7.  What is the role of xylem in a vascular plant?

A. Transports material from the roots up into the plant

B. Transports salt to the roots of the plant

C. Transports chloroplasts to the leaves of the plant

D. Transports carbohydrates from the leaves to the roots

My Answer / Correct Answer / Notes

8.  Which organism is most specialized?

A. Amoeba

B. Paramecium

C. Horse

D. Worm

My Answer / Correct Answer / Notes

9.  What directs similar cells to change into a specific organ?

A. Blood cells

B. Nervous tissue

C. Globular proteins

D. Deoxyribonucleic acid

My Answer / Correct Answer / Notes