Question

practice
identify each statement below as either true or false.

1. photosynthesis and cellular respiration cycle carbon between living organisms and the atmosphere.
2. the chemical reactions in cellular respiration use glucose and oxygen to produce carbon dioxide and water. the chemical reactions for photosynthesis do the opposite.
3. cellular respiration is needed in all cells and takes place all the time, but photosynthesis only occurs in certain plant cells when light is available.
4. the source of energy for cellular respiration is light, but the source of energy for photosynthesis is the chemical bonds in carbohydrate molecules.
5. during photosynthesis, electromagnetic energy from the sun is transformed into chemical potential energy stored in the bonds of glucose.
6. during both photosynthesis and cellular respiration, energy is stored when chemical bonds are created, and energy is released when chemical bonds are broken.

true
false
1.
2.
3.
4.
5.
6.
maap-eoc biology i
section 4.5
cellular energy

Explanation:

Question 1

Photosynthesis takes in CO₂ from the atmosphere and produces O₂, while cellular respiration takes in O₂ and produces CO₂, cycling carbon between organisms and the atmosphere. So the statement is true.

Cellular respiration uses glucose and O₂ to produce CO₂ and H₂O, and photosynthesis uses CO₂ and H₂O to produce glucose and O₂—they are opposite reactions. So the statement is true.

Cellular respiration occurs in all cells (plant, animal, etc.) at all times, while photosynthesis occurs in plant cells with chloroplasts when light is available. So saying photosynthesis only occurs in certain plant cells when light is available is true, but the statement's implication about cellular respiration is misphrased? Wait, no—the statement says "Cellular respiration is needed in all cells and takes place all the time, but photosynthesis only occurs in certain plant cells when light is available." This is true. Wait, but the original table's T/F? Wait, no—wait, the statement is correct. Wait, maybe I misread. Wait, the statement: "Cellular respiration is needed in all cells and takes place all the time, but photosynthesis only occurs in certain plant cells when light is available." This is true. But the T/F options—wait, the table has T and F. Wait, maybe the intended answer? Wait, no—cellular respiration is in all cells (all living cells) and is continuous. Photosynthesis is in plant cells with chloroplasts (certain plant cells) and requires light. So the statement is true. But the T/F mark—wait, maybe the user's table? Wait, the original problem's table: for question 3, the T is marked? Wait, no, the user's image: let's re - check. The user's image shows for question 3, the T is circled? Wait, no, the user's image: the "True" column and "False" column. Let's re - evaluate. Wait, the statement: "Cellular respiration is needed in all cells and takes place all the time, but photosynthesis only occurs in certain plant cells when light is available." This is a correct statement. So the answer is T.

Answer:

1. T (True)

Question 2