Question

1. the ______________ is the cells \command post.\
2. the storeroom of the cell is called a ______________
3. each cell in your body has all the characteristics of life. a cell can get and use ____________. it can __________ and __________. a cell can also reproduce and __________ to the environment. all matter on earth is made of ____________
4. the byproducts from cellular respiration are ____________ and ____________
5. plant cells usually have much bigger ______________ than animal cells do.
6. which cells have chloroplasts? (circle one). plants or animals
7. the largest cell is the yolk of an ______________
8. dna is found inside the ______________
9. the dna model looks like a twisted ______________
10. which two scientists formed the dna model? (2 points)
11. what are four cell parts found in both animal cells and plant cells?

Explanation:

1. The nucleus controls cell - activities, acting as the "command post".
2. Vacuoles store substances in the cell.
3. Cells need energy, they can grow and develop, respond to the environment, and all matter is made of atoms.
4. Cellular respiration produces carbon dioxide and water.
5. Plant cells typically have larger vacuoles.
6. Chloroplasts are in plant cells for photosynthesis.
7. The yolk of an ostrich egg is a large cell.
8. DNA is located in the nucleus.
9. The DNA model is a double - helix (twisted ladder).
10. Watson and Crick developed the DNA model.
11. Both animal and plant cells have a cell membrane, cytoplasm, nucleus, and mitochondria.

Answer:

1. nucleus
2. vacuole
3. energy; grow; develop; respond; atoms
4. carbon dioxide; water
5. vacuoles
6. Plants
7. ostrich egg
8. nucleus
9. ladder
10. Watson and Crick
11. cell membrane, cytoplasm, nucleus, mitochondria