Biology Crossword

7. it copies DNA
9. some of them form acids or bases
11. diffuse down a concentration gradient.
12. acid The stuff chromosomes are made of
13. a is one type of atom or a group of atoms
16. a is the smallest unit of matter
18. is the diffusion of WATER through the cell membrane.
20. is the movement of molecules from higher concentration to lower concentration.
22. strengthen the cell membrane.
23. the release of substances out of the cell by the fusion of a vesicle with the membrane.
24. is a type of endocytosis. (takes in large, solid particles)

1. Found in living tissues and exemplified by glucose
2. dissolve other substances
3. proteins and proteins are used to carry out DNA replication
4. they form between slightly positive hydrogen atoms and slightly negative atoms
5. diffusion is diffusion through transport proteins.
6. diffusion of water across a semipermeable membrane
8. they form the basic structural unit of nucleic acids
10. The copy is used to direct the production of a protein
12. polymerase bonds the nucleotides together
14. they are nonpolar molecules that indeed fats oils and cholesterol
15. make it easier, still passive transport, no ATP required
17. move across membranes because of concentration differences.
19. taking liquids and fairly large molecules into the cell by engulfing them
21. are polymers of amino acid monomers