Download Document

Name ______________________________ Class ___________________ Date __________________
Directed Reading B Unit 1 Lesson 3
Section: Eukaryotic Cells
CELL WALL
Circle the letter of the best answer for each question.
1. What is the purpose of a cell wall?
a. to make a plant droop
b.to support the cell
c. to carry DNA
d. to digest cellulose
CELL MEMBRANE
2. What is the purpose of a cell membrane?
a. to make lipids
b. to protect the cell
c. to support the cell wall
3. What does having two layers allow the cell membrane to do?
a. support the cell wall
b.make proteins c. pass nutrients and wastes through
NUCLEUS
4. What is the genetic material inside a cell’s nucleus?
a. protein
b. lipids
c. DNA
d. nucleolus
5. What is the function of proteins in a cell?
a. to control chemical reactions
b. to store genetic information
c. to cover the nucleus
d. to copy messages from DNA
RIBOSOMES
6. What do all ribosomes do?
a. make proteins
b. float in the cytoplasm
c. attach themselves to membranes
d. make organelles
ENDOPLASMIC RETICULUM
7. What does the endoplasmic reticulum look like?
a. oval, with pores
b. small and round
c. long, with many folds
d. a bubble full of liquid
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
14
Cell: The Basic Units of Life
Name ______________________________ Class ___________________ Date __________________
8.What is the function of the endoplasmic reticulum?
a. internal delivery system
b. protein factory
c.
DNA storage
MITOCHONDRIA
9. What are the peanut-shaped organelles that break down sugar?
a. Golgi complex
b.ribosomes
c. cell membranes
d. mitochondria
CHLOROPLASTS
10. What happens inside a chloroplast?
a. making ATP
b. making DNA
c. photosynthesis
GOLGI COMPLEX
11. What long, folded cell part that packages and distributes proteins?
a. Golgi complex
b.cell membrane
c. ribosome
d. cytoplasm
CELLULAR DIGESTION
12. What do lysosomes do?
a. make new proteins
b. move material around
c. get rid of waste and digest food
d. create vesicles
Vacuoles
13. What is a function of some vacuoles?
a. to make proteins
b. to store water
c. to make sugar
d. to harden the cell
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
15
Cell: The Basic Units of Life