CELLS-PASSIVE 1

3. Cell communication is ________ (support) by signaling molecules.
5. Cell walls are ________ (construct) from different materials in various organisms.
6. Cell types are ________ (classify) according to their structures and functions.
8. Waste materials are ________ (remove) from cells through specialized processes.
10. The cytoplasm is ________ (surround) by the cell membrane.
14. ATP is ________ (generate) inside mitochondria.
16. The importance of stem cells is ________ (teach) in advanced biology classes.
17. The nucleus is ________ (know) as the control center of the cell.
19. Harmful substances are ________ (throw) out of the cell by exocytosis.
21. Cell functions are ________ (compare) among different organisms.
23. The Golgi apparatus is ________ (build) to modify and package proteins.
26. The endoplasmic reticulum is ________ (choose) for comparison in many biology lessons.
27. Plant cells are ________ (distinguish) by the presence of chloroplasts.
29. Cell division is ________ (begin) with DNA replication.
30. Genetic information is ________ (keep) inside the nucleus of eukaryotic cells.

1. Enzymes are ________ (write) about extensively in biology textbooks.
2. Every living organism is ________ (make) of one or more cells.
4. Proteins are ________ (produce) by ribosomes.
6. Cell membranes are ________ (cover) by phospholipid bilayers.
7. Cell differentiation is ________ (describe) as a highly regulated process.
9. Nutrients are ________ (bring) into cells by transport proteins.
11. Organelles are ________ (arrange) according to their specific functions.
12. Oxygen is ________ (take) into the cell during respiration.
13. Cell theory is ________ (develop) through years of scientific investigation.
14. New cells are ________ (grow) from pre-existing cells.
15. Vacuoles are ________ (find) in both plant and animal cells.
18. Cell growth is ________ (control) by regulatory proteins.
20. Cell structures are ________ (observe) under powerful microscopes.
21. The cell membrane is ________ (call) a selectively permeable barrier.
22. DNA is ________ (read) during gene expression.
24. Lysosomes are ________ (send) to recycle damaged cellular components.
25. Energy is ________ (obtain) through cellular respiration.
28. Scientific evidence is ________ (show) in diagrams and laboratory reports.