Question

read this! plant cells have three organelles not found in animal cells. they include the cell wall, large central vacuole, and plastids (including chloroplasts). 19. complete the table below using the three plant organelles mentioned in the read this! box. organelle function fluid - filled organelle stores water, enzymes, and waste products. size of this organelle can change. supports and protects the cell. some store food or pigments; some convert light energy to chemical energy in the form of organic compounds. 20. label each of these three organelles on the plant cell diagram in model 3. 21. individually, in one grammatically correct sentence, describe why it is necessary for plants to have chloroplasts. 22. as a group, reach a consensus on the answer to question 21. record the answer below. 23. the central vacuole stores water. what would happen to the size of the central vacuole if a plant does not have enough water? 24. describe the appearance of the vacuole in a well - watered plant. what effect would this have on the cell wall of the plant? 25. using your response to question 24, construct an explanation for why a plant has both a rigid cell wall and a cellular membrane.

Explanation:

Step1: Identify organelles by function

Large central vacuole: Fluid - filled organelle stores water, enzymes, and waste products. Size can change.
Cell wall: Supports and protects the cell.
Plastids (including chloroplasts): Some store food or pigments; some convert light energy to chemical energy in the form of organic compounds.

Step2: Answer question 21

Chloroplasts are necessary for plants because they enable plants to perform photosynthesis, converting light energy into chemical energy for growth and survival.

Step3: Answer question 23

If a plant does not have enough water, the size of the central vacuole would decrease as it releases water to maintain cellular functions.

Step4: Answer question 24

In a well - watered plant, the vacuole is large and turgid. This exerts turgor pressure on the cell wall, keeping the cell rigid and the plant upright.

Step5: Answer question 25

A plant has both a rigid cell wall and a cellular membrane because the cell wall provides structural support and protection, while the cellular membrane controls the movement of substances in and out of the cell. The turgor pressure from the well - filled vacuole against the cell wall helps maintain plant shape, and the membrane is essential for maintaining cell homeostasis.

Answer:

19.

Organelle	Function
Cell wall	Supports and protects the cell.
Plastids (including chloroplasts)	Some store food or pigments; some convert light energy to chemical energy in the form of organic compounds.

1. Chloroplasts are necessary for plants as they allow plants to convert light energy into chemical energy through photosynthesis.
2. The size of the central vacuole would decrease.
3. The vacuole is large and turgid. It exerts turgor pressure on the cell wall, keeping it rigid.
4. The cell wall provides structural support and protection, while the cellular membrane controls substance movement. The turgor pressure from the vacuole against the cell wall helps maintain shape, and the membrane is for homeostasis.