Q. No.Which of the following is absent in almost all plant cells?
1.
Plastid
2.
Cell wall
3.
A large central vacuole
4.
Centriole
The lipid content of the cell membrane mainly consists of:
| 1. | Phosphoglycerides | 2. | Cholesterol |
| 3. | Unsaturated fatty acids | 4. | Lipopolysaccharides |
The measure of fluidity of a cell membrane is:
| 1. | the ability of proteins to flip-flop between the two layers of phospholipids |
| 2. | the ability of proteins to move laterally within the membrane |
| 3. | the ability of lipids to flip-flop between the two layers of phospholipids |
| 4. | the ability of lipids to move laterally within the membrane |
The endo-membrane system of a eukaryotic cell includes:
| 1. | Lysosomes | 2. | Peroxisomes |
| 3. | Mitochondria | 4. | Chloroplasts |
Acid hydrolases are found in a single membrane bound organelle called:
| 1. Glyoxysome | 2. Lysosome |
| 3. Peroxisome | 4. Ribosome |
A single membrane, tonoplast, binds the:
| 1. Inclusion bodies | 2. Polysomes |
| 3. Vacuoles | 4. Lysosomes |
Which of the following organelles in a eukaryotic cell can only be seen after staining with vital dye?
| 1. | Mitochondria | 2. | Chloroplasts |
| 3. | Nucleus | 4. | Endoplasmic reticulum |
All the following are located in the mitochondrial matrix except:
1. Single circular DNA molecule
2. Proteins of electron transport chain
3. 70 S ribosomes
4. Enzymes of Kreb’s cycle
The types of plastids that store oils and fats are:
| 1. | Leucoplasts | 2. | Amyloplasts |
| 3. | Elaioplasts | 4. | Aleuroplasts |
Identify the incorrect statement regarding chloroplasts:
| 1. | They are double membrane bound organelles |
| 2. | Inner chloroplast membrane is relatively more permeable |
| 3. | Chlorophyll pigments are present in the thylakoids |
| 4. | Stroma contains enzymes required for synthesis of carbohydrates and proteins |
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