A cell that lacks chloroplast does not _______.

Chloroplasts play a vital role in the process of photosynthesis in plants. They absorb sunlight and use its energy to produce food for the plant through photosynthesis. Without chloroplasts, a cell cannot produce food, and it would not be able to release oxygen, a by-product of the photosynthesis process.

Functions of Chloroplasts:

1. Food Production: Chloroplasts are green organelles found in some eukaryotes, like plants and algae. They are responsible for photosynthesis, a process that produces the energy needed for the organism's survival. Chloroplasts use light energy to convert CO₂ (carbon dioxide) and H₂O (water) into food.
2. Green Appearance: Chloroplasts contain pigments that absorb sunlight, mainly blue and red light, while reflecting green light. This is why chloroplasts and the plants containing them appear green.
3. Reduction of Greenhouse Gases: While human cells do not have chloroplasts, these organelles are still crucial for human life. Chloroplasts in plants and algae help produce oxygen and absorb large amounts of CO₂ during photosynthesis. This process not only provides oxygen but also helps reduce the levels of carbon dioxide in the atmosphere, limiting the greenhouse effect.