ways plants compensate for lack of movement

Question

organelles that are abundantly present in secretory cells
name the process responsible for
1)presence of glucose in glomerular filtrate
2)absence of glucose in urine

Answer 1

Ways Plants Compensate for Lack of Movement

1. Tropisms: Plants exhibit directional growth responses to environmental stimuli (e.g., phototropism towards light, gravitropism in response to gravity).
2. Growth Modifications: They can alter growth patterns, such as growing longer roots to reach water or nutrients or developing thicker stems for structural support.
3. Chemical Signaling: Plants use hormones (like auxins, gibberellins, and cytokinins) to regulate growth processes, adapt to changes, and respond to stress.
4. Photosynthesis: They harness light energy to adapt to their environment effectively, creating food and energy without movement.
5. Wound Response: Plants can produce protective chemicals (like phytoalexins) or physical barriers in response to damage.
6. Symbiosis: Many plants form mutually beneficial relationships with fungi (mycorrhizae) or bacteria (nitrogen-fixing bacteria) to enhance nutrient uptake.
7. Leaf Modifications: They can modify leaf structure and orientation to optimize light capture and reduce water loss.

Organelles Abundantly Present in Secretory Cells

Golgi Apparatus and Rough Endoplasmic Reticulum (RER): Secretory cells are rich in these organelles because they are involved in the synthesis, processing, and packaging of proteins and other molecules for secretion. The RER synthesizes proteins, while the Golgi apparatus modifies and packages these proteins for transport outside the cell.

Processes Responsible for Glucose Handling

1. Presence of Glucose in Glomerular Filtrate:

   • Filtration: Glucose is present in glomerular filtrate due to the filtration process that occurs in the kidneys' glomerulus. Blood plasma, containing glucose, is filtered into the Bowman’s capsule, creating the filtrate.

2. Absence of Glucose in Urine:

   • Reabsorption: The absence of glucose in urine is primarily due to the process of renal reabsorption, where glucose is actively reabsorbed from the renal tubules back into the bloodstream, primarily in the proximal convoluted tubule, utilizing sodium-glucose transporters (SGLT).