Plastids
Trending Questions
What do we understand by 70s and 80s ribosome
What are plastids and their functions?
Do prokaryotic cells have ribosomes?
The diagram shows a cell from the stem of a plant.
Which of the parts would not be found in a cell from the root?
Vacuole
Cytoplasm
Chloroplast
Cell wall
Light energy is converted into chemical energy in the presence of
Pyrenoids
Chloroplasts
Ribosomes
Mesosomes
Nerve cells do not divide as they do not contain centrioles so why does plant cells divides (even they do not contain centrioles)?
Part of the chloroplast where the light independent phase of photosynthesis takes place.
Thylakoid
Stroma
Grana
Frets
What do amyloplasts store?
- 23s rRNA
- 5.8S rRNA
- 5s rRNA
- 18s rRNA
Identify labelled structures in the diagram of chloroplast ____.
1=Outer membrane, 2= Inner membrane, 3= Grana, 4= Stroma, 5= Thylakoids
1=Outer membrane, 2= Inner membrane, 3= Thylakoids, 4= Grana, 5= Stroma
1=Inner membrane, 2= Outer membrane, 3= Grana, 4= Thylakoids, 5= Stroma
1=Outer membrane, 2= Inner membrane, 3= Grana, 4= Thylakoids, 5= Stroma
What is the term used for the plastids that are colourless or white in colour?
Name the part in cyanobacteria which contains chlorophyll
- Golgi apparatus
- Mitochondria
- Plastids
- Ribosomes
Which of the following organelle have their own genetic material?
Golgi apparatus
Endoplasmic reticulum
Lysosome
Mitochondria
Why it is called 80s ribosome?
Leaves are green in colour due to the presence of a green pigment called
Cytoplasm
Nucleoplasm
Chlorophyll
Centrioles
- On the stroma lamellae of chloroplast
- In the inner membrane of chloroplast
- In the stroma of chloroplast
- In the thylakoid membrane of chloroplast
(B) Based on the type of pigments plastids can be classified into chloroplasts, chromoplast, and leucoplasts.
(C) In the chromoplasts fat-soluble carotenoid pigments like carotene, xanthophylls, and others are present.
(D) The ribosomes of the chloroplasts are larger than the cytoplasmic ribosomes.
(E) Leucoplasts are the colorless plastids which store nutrients.
- Three
- Four
- Five
- Two
- Plastids
- Golgi bodies
- Mitochondria
- Chromosomes
- Plastids
- Golgi bodies
- Mitochondria
- Chromosomes
Reason: Eukaryotic cells are genetically more complex than prokaryotic cells.
- If the assertion is true but the reason is false.
- Both the assertion and reason are true and the reason is the correct explanation for assertion.
- Both the assertion and reason are true and the reason is not the correct explanation for assertion.
- Both the reason and assertion are false.
- storage
- photosynthesis
- imparts color
Do eukaryotic cells have ribosomes?
The primary function of leucoplasts is ____________.
- True
- False
The primary function of leucoplasts is
storage
regulation of cell functions
protein synthesis
photosynthesis
- Replication site for DNA
- Energy reservoirs
- Synthesis of proteins and ribosomes
- Houses various pigments used in photosynthesis