The endo-membrane system of a eukaryotic cell includes:
1. | Lysosomes | 2. | Peroxisomes |
3. | Mitochondria | 4. | Chloroplasts |
Which of the following statements would not be applicable to the rough endoplasmic reticulum in a eukaryotic cell?
1. | Frequently observed in cells actively involved in protein synthesis and secretion |
2. | Bear ribosomes on their surface |
3. | Continuous with the outer membrane of the nucleus |
4. | Sites of synthesis of steroidal hormones |
The number of correct statements regarding Golgi apparatus amongst the given statements will be:
I: | The concave trans surface is the maturing face. |
II: | The cis and trans faces are entirely different but interconnected. |
III: | It remains in close association with the endoplasmic reticulum. |
IV: | Site of formation of glycoproteins and glycolipids. |
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |
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 |
What is true regarding the structure of ribosomes?
1. | They are made of rRNA and proteins and are enclosed by a single membrane |
2. | They are made of rRNA and carbohydrates and are enclosed by a single membrane |
3. | They are made of rRNA and carbohydrates and are not enclosed by any membrane |
4. | They are made of rRNA and proteins and are not enclosed by any membrane |