Question

multiple choice section. select most correct answer. 1. an organelle containing enzymes that digest or break down large molecules into smaller pieces a) lysosomes b) vacuoles c) ribosomes d) cytoplasm 2. organelle found in plants that contains large amounts of water and stores important material for the cell. a) lysosomes b) vacuoles c) ribosomes d) cytoplasm 3. a plant organelle full of the chlorophyll pigment that transfers solar energy by producing glucose molecules. a) chloroplast b) golgi body c) mitochondria d) microtubules 4. a rod - shaped organelle with double membranes that converts glucose particles into atp energy molecules. a) chloroplast b) golgi body c) mitochondria d) microtubules 5. spherical shaped organelle that contains dna in chromosomes and is the control center of the cell. a) mitochondria b) nucleolus c) mitochondria d) nucleus 6. the code of life or dna is found in a) eukaryote cells b) prokaryote cells c) only in rna viruses d) both a & b 7. the small, specialized membrane - bound structures within eukaryotic cells are called a) organs b) organelles c) cytoskeleton d) cell membrane proteins 8. the eukaryotic membrane - bounded organelle that manages or controls cellular functions is called the a) chloroplast b) nucleus c) mitochondria d) golgi body 9. dna is known to be floating freely and not surrounded by a nuclear membrane in a) prokaryote cell b) plant cell c) animal cell d) all the cells 10. the cell wall is absent from a) prokaryotic cell b) plant cell c) animal cell d) eukaryotic cells 11. organelle made of folded membranes dotted with ribosomes and is the site of cellular chemical reactions. a) lysosome b) cell membrane c) vacuole d) rough endoplasmic reticulum 12. the organelle called the golgi body or golgi apparatus is absent from a) prokaryote cell b) plant cell c) animal cell d) all the cells 13. true or false: the cell above represents a eukaryote.

Explanation:

1. Lysosomes contain digestive enzymes for breaking down large molecules.
2. Vacuoles in plants store water and important materials.
3. Chloroplasts contain chlorophyll and convert solar - energy to glucose.
4. Mitochondria are rod - shaped and convert glucose to ATP.
5. The nucleus contains DNA in chromosomes and is the cell's control center.
6. DNA is found in both eukaryote and prokaryote cells.
7. Specialized membrane - bound structures in eukaryotic cells are organelles.
8. The nucleus manages or controls cellular functions.
9. In prokaryote cells, DNA floats freely without a nuclear membrane.
10. Animal cells do not have a cell wall.
11. The rough endoplasmic reticulum is made of folded membranes with ribosomes and is a site of chemical reactions.
12. Prokaryote cells lack a Golgi body.
13. The cell in the diagram has a nucleus and other membrane - bound organelles, so it is a eukaryote.

Answer:

1. a) lysosomes
2. b) vacuoles
3. a) chloroplast
4. c) mitochondria
5. d) nucleus
6. d) both a & b
7. b) organelles
8. b) nucleus
9. a) prokaryote cell
10. c) animal cell
11. d) rough endoplasmic reticulum
12. a) prokaryote cell
13. True