Question

atp practice sheet

1. what does our bodies need energy for?
2. where does all energy ultimately come from on earth?
3. a tree is an example of a(n) (autotroph / heterotroph).
4. a caterpillar is an example of a(n) (autotroph / heterotroph).
5. what 2 processes store and release energy in food?
6. the molecule carries and transports energy for the cell to use.
7. in which organelle is energy in food transferred to atp?
8. cellular activities use energy in the form of
9. creating electricity and atp are similar in that they both involved
10. because the transfer of energy is never efficient, some energy is lost in what forms?
11. what are the three parts of atp?
12. how many phosphate groups are in atp?
13. where is energy stored in atp?
14. how many phosphate groups are in adp?
15. which one is like a charged battery atp or adp?
16. which is like an uncharged battery atp or adp?
17. when a phosphate bond is created, energy is
18. when a phosphate bond is broken, energy is
19. which one has more energy atp or adp?
20. why does adp have less energy than atp?
21. the reactants are
22. the products are
23. energy is being (released / stored) in this reaction. adp + p + energy → atp
24. the reactants are
25. the products are
26. energy is being (released / stored) in this reaction.

Explanation:

1. Answer - Explanation Format

1. All energy in our bodies ultimately comes from the sun. Through the process of photosynthesis in autotrophs (like plants), solar energy is converted into chemical - energy stored in food.
2. A tree is an autotroph as it can produce its own food through photosynthesis using sunlight, carbon - dioxide, and water. A caterpillar is a heterotroph as it consumes other organisms (like plant leaves) for energy.
3. The two main processes that store and release energy in food are photosynthesis (stores energy) and cellular respiration (releases energy).
4. Cellular activities use energy in the form of ATP. ATP is transferred to cells for use.
5. Creating electricity and ATP are similar in that they both involve energy transformation. In cells, energy from food is transformed into ATP.
6. Because energy transfer is never 100% efficient, some energy is lost in the form of heat.
7. The three parts of ATP are adenine, ribose, and three phosphate groups.
8. There are 3 phosphate groups in ATP. Energy is stored in the bonds between the phosphate groups.
9. There is 1 phosphate group in ADP. When a phosphate group is added to ADP, ATP is formed.
10. In the reaction ATP → ADP + P + Energy, energy is being released. In the reaction ADP + P+ Energy → ATP, energy is being stored.
11. The reactants in the reaction ADP + P + Energy → ATP are ADP and phosphate (P) along with the input of energy. The products are ATP.
12. The reactants in the reaction ATP → ADP + P + Energy are ATP. The products are ADP, phosphate (P), and released energy.
13. ATP is like a charged battery and ADP is like an uncharged battery. When a phosphate - bond in ATP is broken, energy is released and ATP becomes ADP. When a phosphate is added to ADP with energy input, ATP is created.
14. ADP has less energy than ATP because ATP has an extra phosphate group with high - energy bonds.

Answer:

1. The sun.
2. A tree is an autotroph; a caterpillar is a heterotroph.
3. Photosynthesis and cellular respiration.
4. ATP.
5. Energy transformation.
6. Heat.
7. Adenine, ribose, three phosphate groups.
8. 3.
9. 1.
10. Released in ATP → ADP + P + Energy; Stored in ADP + P + Energy → ATP.
11. ADP, P, Energy; ATP.
12. ATP; ADP, P, Energy.
13. ATP is like a charged battery; ADP is like an uncharged battery.
14. ADP has less energy because it has one less phosphate group with high - energy bonds.