Multiple Choice
The part of plants that contains structures needed to absorb sunlight and carbon dioxide is the:
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9. Photosynthesis
Leaf & Chloroplast Anatomy
Multiple Choice
A gelatinous matrix inside the chloroplast containing ribosomes, DNA and enzymes is the:
A
Granum.
B
Chlorophyll.
C
Thylakoid.
D
Stroma.
E
Mitochondria.
Verified step by step guidance1
Step 1: Understand the structure of the chloroplast. Chloroplasts have several key components including the thylakoids, grana (stacks of thylakoids), stroma, and chlorophyll molecules.
Step 2: Identify the function and contents of each component. The thylakoids are membrane-bound sacs where the light-dependent reactions occur, and grana are stacks of these thylakoids.
Step 3: Recognize that chlorophyll is a pigment molecule located within the thylakoid membranes, responsible for capturing light energy.
Step 4: Focus on the stroma, which is the gelatinous fluid surrounding the thylakoids inside the chloroplast. The stroma contains ribosomes, DNA, and enzymes necessary for the light-independent reactions (Calvin cycle).
Step 5: Conclude that the gelatinous matrix inside the chloroplast containing ribosomes, DNA, and enzymes is the stroma.
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