1) Which pigment in chloroplasts captures sunlight? a) Hemoglobin b) Chlorophyll  c) Carotene d) Melanin 2) Which part of the chloroplast is arranged in stacks called grana? a) Thylakoids b) Stroma c) Ribosomes d) Membranes 3) What is the main function of chloroplasts? a) Protein synthesis b) Photosynthesis c) Storing water d) Transporting nutrients 4) In which part of the chloroplast does the Calvin cycle occur? a) Thylakoid b) Grana c) Stroma d) Outer membrane 5) What gas is released as a byproduct of photosynthesis in chloroplasts? a) Oxygen b) Carbon dioxide c) Nitrogen d) Hydrogen 6) Which of the following is NOT part of chloroplast structure? a) Grana b) Thylakoid c) Stroma d) Mitochondria

Chloroplasts: Structure and Function

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