Chloroplast Flashcards
Where are chloroplasts found?
In plant cells and some algae. They are located within the cytoplasm typically near the vacuole
Are chloroplasts found in animal cells?
No, chloroplasts are absent in animal cells.
What type of membrane do chloroplasts have?
They have a double membrane similar to mitochondria.
What is the stroma in chloroplasts?;
Stroma is the fluid inside chloroplasts that contains enzymes, ribosomes and DNA
What is chlorophyll and where is it located?
Chlorophyll is a green pigment embedded in the thylakoid membranes. Chlorophyll is essential for photosynthesis
Do chloroplasts have their own DNA and ribosomes?
Yes, chloroplasts have their own DNA and ribosomes
What are grana in chloroplasts?
Grana are stacks of disk-shaped thylakoid membranes containing chlorophyll that increase surface area for light absorption.
What occurs in the thylakoid membranes of chloroplasts?
Light-dependent reactions where sunlight is used to produce ATP.
What occurs in the stroma of chloroplasts?
The Calvin cycle (light-independent reactions) where ATP is used to convert carbon dioxide into glucose.
What is the main function of chloroplasts?
They are the site of photosynthesis capturing light energy and converting it into chemical energy (glucose).
What other functions do chloroplasts serve?
They are involved in synthesizing fatty acids and amino acids for the plant’s survival.
How do chloroplasts store excess glucose?
They store it as starch for later use by the plant.
What do chloroplasts release into the atmosphere?
They release oxygen as a byproduct of photosynthesis.
