Photosynthesis and Enzymes Flashcards | Quizlet

Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen.


03/01/2018 · In plant photosynthesis, ..

Plants cells contain a number of structures that are involved in the process of photosynthesis:

The rate of photosynthesis in plants depends ..

Photosynthetic carbon metabolism encompasses the processes by which plants and other photosynthetic organisms use the energy captured from light in the form of NADPH and ATP to convert atmospheric carbon dioxide into carbohydrates. Carbohydrates produced by photosynthesis form the base for the nutrition of all other life as well as serving as the starting materials for fibres, oils and many other natural compounds used by people.

Plant photosynthesis Photosynthesis in ..

The fundamental principle of photosynthesis is that plants open and close the stomata (pores) on the leaves, and thus control the amount of carbon dioxide and oxygen that passes through them.

Diagram of a plant cell involved in production of glucose from photosynthesis

Photosynthesis - Science & Biology

C4 plants almost never saturate with light and under hot, dry conditions much outperform . They use a two-stage process were CO2 is fixed in thin-walled mesophyll cells to form a 4-carbon intermediate, typically malate (malic acid). The reaction involves phosphoenol pyruvate () which fixes CO2 in a reaction catalyzed by PEP-carboxylate. It forms oxaloacetic acid (OAA) which is quickly converted to malic acid. The 4-carbon acid is actively pumped across the cell membrane into a thick-walled bundle sheath cell where it is split to CO2 and a 3-carbon compound.

enzymes in photosynthesis? | Yahoo Answers


Cell walls: provide structural and mechanical support, protect cells against pathogens, maintain and determine cell shape, control the rate and direction of growth and generally provide form to the plant.

Enzyme Activity in Photosynthesis | Synonym

Mechanism for concentrating CO2 in C4 photosynthesis of the NADP malic enzyme type. (Adapted from Heldt H‐W (1997) . Oxford: Oxford University Press.) Malate and pyruvate are the major metabolites moving between the mesophyll and bundle sheath cells. Specific metabolite membrane transporters are indicated by solid black circles. Key enzymes are identified and discussed in the text (F1, EC 4.1.1.31; F2, 1.1.1.40; F3, 2.7.9.1).

What do Plant Enzymes do? - Food Enzyme Institute

RUBISCO is the enzyme in plants that is responsible for getting the carbon dioxide out from the atmosphere, and in the case of C3 photosynthesis, RUBISCO collects the CO2 during the daytime.

photosynthesis: Diagram of a plant cell ..

The photosynthetic characteristics of four transgenic rice lines over-expressing rice NADP-malic enzyme (ME), and maize phosphoenolpyruvate carboxylase (PC), pyruvate,orthophosphate dikinase (PK), and PC+PK (CK) were investigated using outdoor-grown plants. Relative to untransformed wild-type (WT) rice, PC transgenic rice exhibited high PC activity (25-fold increase) and enhanced activity of carbonic anhydrase (more than two-fold increase), while the activity of ribulose-bisphosphate carboxylase/oxygenase (Rubisco) and its kinetic property were not significantly altered. The PC transgenic plants also showed a higher light intensity for saturation of photosynthesis, higher photosynthetic CO2 uptake rate and carboxylation efficiency, and slightly reduced CO2 compensation point. In addition, chlorophyll a fluorescence analysis indicates that PC transgenic plants are more tolerant to photo-oxidative stress, due to a higher capacity to quench excess light energy via photochemical and non-photochemical means. Furthermore, PC and CK transgenic rice produced 22–24% more grains than WT plants. Taken together, these results suggest that expression of maize C4 photosynthesis enzymes in rice, a C3 plant, can improve its photosynthetic capacity with enhanced tolerance to photo-oxidation.