Cellular Organelles (GATE)
Comprehensive quiz covering plastid types (chloroplasts, chromoplasts, leucoplasts), their structure, development from proplastids, and functions in plant cells including starch storage and photosynthesis.
Questions
Plastids were discovered by
- Rhodin
- Haeckel
- Schimper
- Perner
- Koltzoff
Which one of the following structures takes part in the storage and synthesis of organic compounds?
- Microfilaments
- Plastids
- Centriole
- Nucleoplasm
- Glyoxysomes
Chloroplast cannot arise from
- pre existing chloroplast
- proplastids
- leucoplasts
- mitochondria
- both proplastids and leucoplasts
Which of the following structures is surrounded by a double membrane?
- Plastids
- Spherosomes
- Microbodies
- Vacuoles
- Golgi bodies
Plastids are of three main types. Which of the following is not a type of plastid?
- Leucoplast
- Chloroplast
- Chromoplast
- Proplastids
- Leucoplast and chloroplast
The plastids are green due to the presence of
- chlorophyll
- haemocyanin
- carotenoids
- haemoglobin
- both chlorophylls and haemocynin
In which of the following are two chloroplasts present?
- Chlamydomonas
- Chlorella
- Spirogyra
- Zygnema
- Ulothrix
In embryophytesm, the second largest cell organelle is the
- nucleus
- chloroplast
- lysosomes
- mitochondria
- ribosomes
Which of the following is/are the structural element(s) of chloroplast?
- Leucoplast
- Chlorophyll
- Thylakoids
- Centriole
- Fret channels
Which of the following statements is false?
- Each chloroplast is surrounded by a double membrane envelop.
- Chlorenchyma cells of leaves contain 20-40 chloroplasts.
- In many algae, chloroplast is the largest cell organelle.
- Chloroplasts were discovered by Briedenbach in 1883.
- Chromoplasts have various shapes due to the crystallisation of carotenoids.
The space present in a granal thylakoid is called
- fret channels
- grana
- quantasome
- loculus
- aleuroplasts
Which of the following statements is false?
- Chloroplast can arise from leucoplast.
- Chromoplast can develop from leucoplast.
- All plastids possess naked DNA.
- Leucoplasts are formed from proplastids.
- Leucoplast can arise from golgi bodies.
Amyloplasts are specialised into
- synthesis of fat
- storage of fat
- storage of protein
- synthesis of protein
- storage of starch
What is the name of the plastids which take part in temporary or permanent storage of starch and photosynthesis?
- Chromoplasts
- Chloroplasts
- Amyloplasts
- Elaioplast
- Proteinoplast
Which of the following are plastids developed from?
- Leucoplast
- Chromoplast
- Proplastids
- Lysosomes
- Mitochondria