Question

organelle functions
nucleus:
chloroplast:
ribosomes:
capsule:
cell wall:
cell membrane:
vacuole:
cytoplasm:
flagella:
dna:

Explanation:

To determine the functions of these organelles (and related structures):

Nucleus:

Controls cell activities (contains DNA, the genetic material, and is the site of transcription for RNA synthesis).

Chloroplast:

Site of photosynthesis in plant cells (converts light energy into chemical energy - glucose - using chlorophyll).

Ribosomes:

Site of protein synthesis (translate mRNA into polypeptide chains).

Capsule (in prokaryotes, e.g., bacteria):

Protects the cell, helps in adhesion to surfaces, and can prevent desiccation.

Cell Wall:

In plants (cellulose), fungi (chitin), and prokaryotes (peptidoglycan): provides structural support, protection, and maintains cell shape; in plants, it also prevents over-expansion when water enters the cell.

Cell Membrane:

Regulates the movement of substances in and out of the cell (selectively permeable), and is involved in cell signaling and adhesion.

Vacuole:

In plant cells: large central vacuole stores water, nutrients, and waste; maintains turgor pressure (cell rigidity). In animal cells: smaller, used for storage and transport.

Cytoplasm:

Gel - like substance where organelles are suspended; site of many metabolic reactions (e.g., glycolysis in cellular respiration).

Flagella:

Long, whip - like structures (in prokaryotes and some eukaryotes) used for cell movement (locomotion).

DNA:

Genetic material; stores genetic information, which is used for replication, transcription (to make RNA), and ultimately for the synthesis of proteins (which determine the cell’s structure and function).

If you needed a specific format (e.g., a table of organelle - function pairs), here’s a tabular version:

Organelle/Structure	Function
Chloroplast	Site of photosynthesis (energy conversion: light → chemical)
Ribosomes	Protein synthesis (translation of mRNA)
Capsule	Protects cell; aids adhesion; prevents desiccation (prokaryotes)
Cell Wall	Structural support; protection; maintains cell shape
Cell Membrane	Regulates substance transport; cell signaling/adhesion
Vacuole	Storage (water, nutrients, waste); turgor pressure (plant cells)
Cytoplasm	Suspends organelles; site of metabolic reactions (e.g., glycolysis)
Flagella	Cell locomotion (movement)
DNA	Stores genetic information; used in replication/transcription/protein synthesis

Answer:

To determine the functions of these organelles (and related structures):

Nucleus:

Controls cell activities (contains DNA, the genetic material, and is the site of transcription for RNA synthesis).

Chloroplast:

Site of photosynthesis in plant cells (converts light energy into chemical energy - glucose - using chlorophyll).

Ribosomes:

Site of protein synthesis (translate mRNA into polypeptide chains).

Capsule (in prokaryotes, e.g., bacteria):

Protects the cell, helps in adhesion to surfaces, and can prevent desiccation.

Cell Wall:

In plants (cellulose), fungi (chitin), and prokaryotes (peptidoglycan): provides structural support, protection, and maintains cell shape; in plants, it also prevents over-expansion when water enters the cell.

Cell Membrane:

Regulates the movement of substances in and out of the cell (selectively permeable), and is involved in cell signaling and adhesion.

Vacuole:

In plant cells: large central vacuole stores water, nutrients, and waste; maintains turgor pressure (cell rigidity). In animal cells: smaller, used for storage and transport.

Cytoplasm:

Gel - like substance where organelles are suspended; site of many metabolic reactions (e.g., glycolysis in cellular respiration).

Flagella:

Long, whip - like structures (in prokaryotes and some eukaryotes) used for cell movement (locomotion).

DNA:

Genetic material; stores genetic information, which is used for replication, transcription (to make RNA), and ultimately for the synthesis of proteins (which determine the cell’s structure and function).

If you needed a specific format (e.g., a table of organelle - function pairs), here’s a tabular version:

Organelle/Structure	Function
Chloroplast	Site of photosynthesis (energy conversion: light → chemical)
Ribosomes	Protein synthesis (translation of mRNA)
Capsule	Protects cell; aids adhesion; prevents desiccation (prokaryotes)
Cell Wall	Structural support; protection; maintains cell shape
Cell Membrane	Regulates substance transport; cell signaling/adhesion
Vacuole	Storage (water, nutrients, waste); turgor pressure (plant cells)
Cytoplasm	Suspends organelles; site of metabolic reactions (e.g., glycolysis)
Flagella	Cell locomotion (movement)
DNA	Stores genetic information; used in replication/transcription/protein synthesis