Question

unit 2 cells test test b concept 1 multiple choice (2 pts each) 1. which characteristic is not common to both prokaryotic cells and eukaryotic cells? a. genetic material b. cell membrane c. cytoplasm d. multicellular organisms 2. which of the following is found in a eukaryotic cell, but is not found in a prokaryotic cell? a. cytoplasm b. cell membrane c. nucleus d. flagella 3. which plant cell organelle uses light energy to produce sugar? a. chloroplast b. mitochondria c. nucleus d. ribosome 4. which of the following organelles would you not find in a plant cell? a. chloroplast b. centrioles c. central vacuole d. cell wall 5. which of the following serves as the cells boundary from its environment and controls what goes in and out of the cell? a. mitochondria b. cell membrane c. chloroplast d. golgi apparatus 6. cells often store materials like water, salts, proteins and carbohydrates in sac - like structures called a. chloroplasts. b. lysosomes c. mitochondria. d. vacuoles. 7. according to cell theory, a. all multicellular organisms are composed of prokaryotic cells. b. only cells like the eukaryote can carry out the functions of life. c. single - celled organisms are only capable of asexual reproduction. d. even primitive cells, like the prokaryote, can carry out the functions of life. 8. which principle of cell theory best supports the idea that new cells will replace damaged cells in a scraped knee? a. all living things are made of one or more cells. b. cells are the basic unit of life. c. all cells come from other cells. d. the nucleus of cells in animals reproduces when exposed to air. concept 1 open response 9. if a cell were lacking lysosomes, what would the cell not be able to do? (1 pt) 10. complete the table on your answer sheet by checking the correct column(s) for each description. (4 pts) description prokaryotes eukaryotes contains cytoplasm do not have membrane - bound organelles cells do not have a nucleus can be unicellular or multicellular have ribosomes have cell membranes have genetic material (dna/rna) plants and animals

Explanation:

1. Prokaryotes lack membrane - bound organelles like a nucleus, while eukaryotes have them. Multicellular organisms are made of eukaryotic cells, so D is not common to both.
2. Prokaryotes do not have a nucleus, which is a defining feature of eukaryotes.
3. Chloroplasts in plant cells perform photosynthesis, using light energy to produce sugar.
4. Centrioles are mainly found in animal cells and not in plant cells.
5. The cell membrane acts as a boundary and controls the movement of substances in and out of the cell.
6. Vacuoles are sac - like structures that store materials in cells.
7. Cell theory states that all living organisms are composed of cells, and cells are the basic unit of life.
8. The principle that all cells come from pre - existing cells supports the idea of new cells replacing damaged cells.
9. Lysosomes contain enzymes for breaking down waste and foreign materials, so a cell lacking them couldn't digest these substances.
10. Prokaryotes and eukaryotes both have cytoplasm, cell membranes, and genetic material. Prokaryotes do not have membrane - bound organelles or a nucleus and can be unicellular. Eukaryotes can be unicellular or multicellular and have membrane - bound organelles including a nucleus. Plants and animals are eukaryotes.

Answer:

1. D. Multicellular organisms
2. C. Nucleus
3. A. Chloroplast
4. B. Centrioles
5. B. Cell membrane
6. D. Vacuoles
7. B. Cells are the basic unit of life.
8. C. All cells come from other cells.
9. Digest waste and foreign materials.

10.

Description	Prokaryotes	Eukaryotes
Do NOT have membrane - bound organelles	Yes	No
Cells do NOT have a nucleus	Yes	No
Can be unicellular or multicellular	Yes	Yes
Have ribosomes	Yes	Yes
Have cell membranes	Yes	Yes
Have genetic material (DNA/RNA)	Yes	Yes
Plants and animals	No	Yes