Across
- 1. duration of pregnancy
- 2. egg or sperm
- 6. sack-like structures
- 9. egg and sperm join
- 12. site of protein syntheses
- 13. transport from high to low
- 15. outside of
- 16. only in plants; made of carbohydrate fibers
- 17. fraternal twins
- 18. breaks down lipids, carbs, and proteins
Down
- 1. stack of membranes
- 3. cell with nucleus
- 4. within
- 5. true or good
- 7. identical twins
- 8. only certain things travel in and out
- 10. means cell
- 11. diffusion of water molecules
- 13. prior to or before
- 14. material taken into the cell through infoldings