MCQ on Cell Signalling in Plants

MCQ on Cell Signalling in Plants: In plants, cell signalling occurs through various mechanisms, including phytohormones like auxins, cytokinins, and gibberellins. These molecules regulate growth, development, and responses to environmental cues by binding to receptors and initiating intracellular pathways, ensuring coordinated physiological processes.

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Cell signalling in plants involves the transmission of information between cells to regulate various processes. Which molecule is commonly involved in cell signalling?

The signalling molecule that is involved in long-distance cell signalling in plants and is responsible for growth and development is:

The receptor proteins that perceive extracellular signals in plant cells are typically located on the:

The binding of a signalling molecule to its receptor can initiate a cascade of intracellular events. What is the term for this step?

Which of the following second messengers is involved in plant cell signalling and is derived from inositol phospholipids in the plasma membrane?

The plant hormone responsible for inducing stomatal closure during water stress is:

Which of the following is a gaseous plant hormone that regulates fruit ripening and is produced in response to stress?

Receptor-like kinases (RLKs) play a vital role in plant cell signalling. What is the function of RLKs?

The process by which plants respond to light direction and intensity is known as:

The binding of auxin to its receptor on the plasma membrane leads to the activation of a proton pump, resulting in:

The process by which plants respond to gravity is known as:

In the plant immune response, recognition of pathogen-derived molecules by plant receptors leads to the activation of:

Which of the following is a common second messenger involved in plant responses to environmental stress and activates various stress-related genes?

The process by which plants respond to touch or mechanical stimuli is known as:

The phenomenon in which plants measure the length of the dark period to determine their flowering time is called:

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