Honors Biology Crossword

2. A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
4. molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end
5. Conversion of light energy from the sun into chemical energy
7. Basic unit of matter
9. structure made of spindle fibers, centrioles, and aster fibers that is involved in moving and organizing chromosomes before the cell divides
11. the powerhouse of the cell
12. the study of the transfer of energy
14. macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
15. compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
16. enzyme to which cyclin binds during interphase and mitosis, triggering and controlling activities during the cell cycle
21. Movement of specific molecules across cell membranes through protein channels
22. Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen

1. first step in releasing the energy of glucose, in which a molecule of glucose is broken into two molecules of pyruvic acid
3. Clusters of DNA, RNA, and proteins in the nucleus of a cell
6. compound used by cells to store and release energy
8. A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy.
10. fluid portion of the chloroplast; outside of the thylakoids
13. the chemical processes that occur within a living organism in order to maintain life.
17. the ability to do work
18. repeating subunit of chromatin fibers, consisting of DNA coiled around histones
19. programmed cell death
20. The form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape