The Question is from neet-botany photosynthesis-in-higher-plants , and it was created by the author Mr. NARESH KUMAR K

Question

Emerson’s enhancement effect and Red drop have been instrumental in the discovery of:

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [B]
## CONCEPT FRAMEWORK
	**Primary Concept**: Photosynthesis and its mechanisms
	**Related Topics**: Photosystems, Emerson effect, Red Drop, Light reactions
	**Prerequisites**: Basic understanding of photosynthesis, light-dependent reactions
## SOLUTION PATHWAY
**Given Information**:
	*  Emerson's enhancement effect and red drop are mentioned.
	*  The question asks about their impact on the discovery of specific photosynthetic processes.
**Method & Steps**:
	1. Recall what the Emerson enhancement effect and red drop demonstrate.
		Reasoning: The Emerson effect shows that photosynthesis is more efficient when plants are exposed to both red and far-red light simultaneously compared to each wavelength separately. The red drop refers to a sharp decline in photosynthetic efficiency beyond 680nm.
		Formula/Rule: None
	2. Relate these phenomena to the concept of photosystems.
		Working: These observations led to the hypothesis and discovery of two photosystems (PSI and PSII) that work together.
		Key Point: The Emerson effect is best explained by the combined action of two photosystems.
	3. Match the discovery to the options.
		Result: The correct option is B which refers to 'Two photosystems operating simultaneously'.
		Verification: Option B aligns with the fundamental understanding of the Emerson enhancement effect and the red drop.
## OPTION ANALYSIS
[A] :x: Photophosphorylation and non-cyclic electron transport are processes that are linked to the operation of two photosystems, but the Emerson effect directly led to the discovery of the two photosystems themselves. 
[B] ✓: The Emerson enhancement effect and red drop are key findings that led to the discovery that photosynthesis uses two photosystems working in tandem.
[C] :x: While the Emerson effect is related to photosynthesis, it does not primarily lead to the discovery of cyclic electron transport.
[D] :x: Oxidative phosphorylation is a process in cellular respiration, not photosynthesis, so it is not linked to Emerson’s enhancement effect and Red drop.
## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing the Emerson effect with the specific electron transport chains. [How to avoid]: Focus on the key discovery - two photosystems.
		2.[Error 2]: Relating the Emerson effect to processes outside of photosynthesis. [How to avoid]: The Emerson effect is specific to the light-dependent reactions of photosynthesis.
	**Quick Tips**:
		1.[Helpful shortcut]: Remember that the Emerson effect and Red drop are about the light spectrum and its effect on photosynthetic efficiency, leading to the concept of two photosystems.
		2.[Memory aid]: Think of 'Emerson' and 'Two' (photosystems) to make the connection.

Mr. NARESH KUMAR K · Answer

Photophosphorylation and non – cyclic electron transport

Mr. NARESH KUMAR K · Answer

The correct Option is "Two photosystems operating simultaneously"

Mr. NARESH KUMAR K · Answer

Photophosphorylation and cyclic electron transport

Mr. NARESH KUMAR K · Answer

Oxidative phosphorylation

NEET Botany Photosynthesis in Higher Plants MCQs

Select Topic

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company