Photosynthesis and Cellular Respiration
How many molecule/s of carbon dioxide is/are released from one pyruvic acid molecule being oxidized?
2
What are the economically important products of the fermentation of grape juice by yeast that are essential for the manufacture of champagne?
CO2 and ethanol
Which of the following materials are cycled out by the chloroplast and mitochondrion?
Carbon dioxide, water, sugar and oxygen
Where does glycolysis occur?
Cytoplasm
What will happen if ATP and NADPH are already used up at night?
Glucose production will stop.
Where does respiratory electron transport occur?
Inner membrane of mitochondria
What happens to the Hydrogen carried to the electron transport chain?
It ends up as water
Oxygen is essential in cellular respiration. What is the role of oxygen in the electron transport chain?
It serves as the final acceptor.
A farmer is experiencing a problem in growing his crops. Most of the leaves of the crops are turning yellow. Which of the following will likely result from the yellowing of the leaves of the crops?
It will decrease the production of food.
Sugarcane juice is used in making table sugar which is extracted from the stem of the plant. Trace the path of sugar molecules found in the stem from where they are produced.
Leaf ----- stem
The light-dependent reaction of photosynthesis must come first before the light independent reaction because its products are important to the fixation of carbon dioxide. Which of the following is/are the product/s of the light-dependent reaction?
NADPH and ATP
Which of the following best explains why planting trees and putting up urban gardens can help prevent global warming?
Plants use up carbon dioxide during photosynthesis, release oxygen to the environment, and perform transpiration.
The generation of ATP by electron transport in photosynthesis and cellular respiration depends upon
a, b, c, are all required for ATP generation.
The role of accessory pigment is to
capture additional light energy and transfer it to the chlorophyll reaction centers.
Oxygen and carbon dioxide are gases that cycle out in the ecosystem. Which of the following gases is important to photosynthesis?
carbon dioxide
Plants are very unique among other organisms due to their capability to trap sunlight and make their own food. Which of the following enables plants to trap energy from the sun?
chlorophyll
The process that converts glucose into two molecules of pyruvate is
glycolysis
Photosynthesis is measured in the leaf of a green plant exposed to different wavelengths of light. Photosynthesis is
highest in red and blue light.
Where do the light-independent, carbon-fixing reactions occur?
in the chloroplast stroma
Where do light-dependent reactions of photosynthesis occur?
in the leaf cell cytoplasm
Pyruvate is the product of glycolysis. If there is no oxygen available to cells of the human body, what becomes of pyruvate?
lactic acid
The oxygen produced during photosynthesis comes from
the breakdown of water
The majority ATP produced in aerobic respiration comes from
the electron transport system.
Plants make food by absorbing water and carbon dioxide. Which of the following substances is the origin of oxygen released as gas by green plants during photosynthesis?
water
