Biology, The Process of Photosynthesis

Which is an example of why the process of photosynthesis is important to life on Earth? A) Grass uses photosynthesis to produce glucose, which is used within the grass for growth. B) Fungi use photosynthesis to decompose dead and decaying plant matter. C) Cold-blooded animals use photosynthesis to convert sunlight into energy for cell functions. D) Green plants use photosynthesis to remove oxygen gas from the atmosphere and replenish the earth's carbon dioxide.

A) Grass uses photosynthesis to produce glucose, which is used within the grass for growth.

Which statement best describes the relationship of photosynthesis and energy? A) The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose. B) The process of photosynthesis is energy-releasing because the process converts light energy into free energy that can be used for cell functions. C) The process of photosynthesis is energy-conserving because no energy is used throughout the process of forming glucose and oxygen molecules. D) The process of photosynthesis is energy-wasting because photosynthesis is an inefficient process that depletes the cell of energy stored in the bonds of glucose.

A) The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose

Photosynthesis is important to living organisms because it is A) the foundation of most food chains. B) the source of nitrogen gas in the air. C) how animals get carbon dioxide to breathe. D) the process that occurs in most ecosystems.

A) the foundation of most food chains.

Which is the main light-absorbing pigment for photosynthesis? A) carotene B) chlorophyll C) hemoglobin D) anthocyanin

B) chlorophyll

Which statement best describes what a thylakoid does during photosynthesis? A) surrounds the grana and keeps them moist B) enables the light-dependent reactions to occur C) combines carbon dioxide and water to make sugar D) helps the light-independent reactions to occur

B) enables the light-dependent reactions to occur

Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years to answer his question. How can his experimental methods be changed to improve his experiment? A) He needs to ask scientists what they think. B) He needs to conduct the experiment for a longer period. C) He needs to use a larger sample size. D) He needs to test more factors in the environment.

C) He needs to use a larger sample size.

Which statement summarizes the main purpose of photosynthesis? A) It converts gases to solids in the form of sugar. B) It converts carbon to oxygen. C) It converts light energy to chemical energy. D) It converts energy to mass.

C) It converts light energy to chemical energy.

Miles wants to write the equation for photosynthesis. The diagram below represents one of the molecules in the equation. mc016-1.jpg Which chemical formula reflects the diagram? A) 6O12H6C B) 6C12H6O C) O6H12C6 D) C6H12O6

D) C6H12O6

How are the reactants represented in the chemical equation for photosynthesis? A) 6CO2 + O2 B) 6CO2 + 6H2O C) C6H12O6 + 6O2 D) C6H12O6 + 6H2O

D) C6H12O6 + 6H2O