2 Biology Vocab Unit 4

Question 1

Chloroplast

Answer 1

an organelle found in plants and algae that absorbs sunlight and uses it to drive thee synthesis of organic compounds from CO2 to H2O

Question 2

Thylakoid

Answer 2

a flattened membranous sac inside a chloroplast

Where light reactions take place

Question 3

Stroma

Answer 3

the dense fluid within the chloroplast that surrounds the thylakoid membrane

Where the Calvin Cycle takes place

Question 4

CAM Photosynthesis

Answer 4

a carbon fixation pathway that evolved in some plants as an adaptation to dry conditions that allows a plant to do photosynthesis during the day, but only exchanges gases at night

Question 5

C4 Photosynthesis

Answer 5

a four-carbon compound is produced, unique lead anatomy allows carbon dioxide to concentrate in ‘bundle sheath’ cells and Rubisco, which causes CO2 to go straight to Rubisco

Question 6

Chlorophyll

Answer 6

a green pigment located within the chloroplasts of plants and algae and in the membranes of certain prokaryotes

Question 7

Light-Dependent reactions

Answer 7

certain photo chemical reactions involved in photosynthesis, the main process by which plants aquire energy.

In the thylakoids, light energy is taken from sun and held through ATP and NADPH

Question 8

Calvin Cycle

Answer 8

the second of the two stages of photosynthesis a cyclic series of chemical reactions that occur in the Stroma of a chloroplast, using the carbon in CO2 that is taken through the stomata and the ATP and NADPH from the light reactions to make a G3P (Sugar) (C6H12O6) molecule that can be used to build Glucose and other carbohydrates.