The endomembrane system of a typical eukaryotic cell includes all the following except:
1. Lysosomes 2. Golgi Apparatus
3. Vacuole 4. Mitochondria

Subtopic:  Endomembrane System |
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Level 1: 80%+
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How many of the given statements are true?
I: ER divides the intracellular space into two distinct compartments, i.e., luminal (inside ER) and extra luminal (cytoplasm) compartments.
II: RER is frequently observed in the cells actively involved in protein synthesis and secretion.
III: RER are extensive and continuous with the outer membrane of the nucleus.
IV: The smooth endoplasmic reticulum is the major site for synthesis of lipid.
V: In animal cells, lipid-like steroidal hormones are synthesised in SER.
 
1. 2
2. 3
3. 4
4. 5
Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
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Level 1: 80%+
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Acid hydrolases in a eukaryotic cell are located within:
1. Peroxisomes 2. Glyoxysomes
3. Lysosomes 4. Carboxysomes
Subtopic:  Lysosomes |
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Tonoplast is:
1. the internal membrane in chloroplast
2. membrane of vacuole
3. membrane of lysosomes
4. membrane of glyoxysomes
Subtopic:  Vacuole |
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Level 1: 80%+
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What type of plastids store oils and fats in plant cells?
1. Chromoplasts 2. Amyloplasts
3. Elaioplasts 4. Aleuroplasts
Subtopic:  Plastids |
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Which organelle must be specifically stained with a vital dye such as Janus green so that it can be seen under a microscope?
1. SER 2. Mitochondria
3. Chloroplasts 4. Vacuoles
Subtopic:  Mitochondria |
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An elaborate network of filamentous proteinaceous structures consisting of microtubules, microfilaments and intermediate filaments present in the cytoplasm of eukaryotic cells is collectively referred to as the:
1. cytoskeleton 2. MTOC
3. Contractile elements 4. vimentin
Subtopic:  Cytoskeleton |
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Identify the incorrect statement:
1. Centrosome is an organelle usually containing two cylindrical structures called centrioles.
2. Both the centrioles in a centrosome lie parallel to each other in which each
has an organisation like the cartwheel.
3. Centrioles are made up of nine evenly spaced peripheral fibrils of tubulin protein
where each of the peripheral fibril is a triplet.
4. The central part of the proximal region of the centriole is also proteinaceous and called the hub.
Subtopic:  Centrosomes |
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Level 1: 80%+
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Consider the given two statements:
Statement I: The outer nuclear membrane usually remains continuous with the endoplasmic reticulum and also bears ribosomes on it.
Statement II: Nuclear pores are the passages through which movement of RNA from nucleus to the cytoplasm and protein molecules from the cytoplasm to the nucleus takes place.
 
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic:  Nucleus |
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A peroxisome is a membrane-bound organelle found in the cytoplasm of virtually all eukaryotic cells and contains several oxidases and catalases. Why type of structure is the peroxisome?
1. Inclusion body 2. FTS-Z elements
3. Microbody 4. Lysosomes
Subtopic:  Microbodies |
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Level 2: 60%+
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