Select the features which are common for both ER and Golgi apparatus.
(A) | Both are sites for synthesis of lipids and steroidal hormones. |
(B) | Both are composed of cisternae, tubules and vesicles. |
(C) | Both are parts of endomembrane system. |
(D) | Both help in formation of plasma membrane during cytokinesis. |
1. Only (B)
2. Only (B) and (C)
3. Only (A) and (D)
4. All except (D)
Which of the following statement is incorrect with respect to endomembranous system?
1. | Found only in eukaryotes. |
2. | The organelle of this system function in coordinated manner. |
3. | It includes endoplasmic reticulum, golgi complex, lysosome and vacuole. |
4. | Found in that cell in which cyclosis is absent |
Select the correct statement with respect to axoneme of eukaryotic flagella.
1. | It is composed of 9 peripheral triplet microfibrils of tubulin proteins. |
2. | It does not have covering of plasma membrane. |
3. | Central tubules are enclosed by a central sheath. |
4. | It gives rise to spindle apparatus during cell division. |
Choose the correct statements –
I: | Mitochondria and Chloroplast transfer energy. |
II: | Mitochondrion is a power-house of cell as it produces most of the cellular ATP. |
III: | Mitochondria and chloroplast are found in all eukaryotic cells. |
IV: | Mitochondria are the sites of anaerobic respiration. |
V: | The matrix of mitochondria posses a single linear DNA, many RNA molecules, 80S ribosomes. |
1. IV and V
2. I, II
3. II, IV and V
4. III and V
Which of the following is the correct sequence / route of the secretory product?
1. | ER Vesicles Cis region of GB Trans region of GB Vesicle Plasma membrane. |
2. | RER GB Lysosome Nuclear membrane Plasma membrane. |
3. | ER Vesicles Trans region of GB Cis region of GB Vesicles Plasma membrane. |
4. | Lysosome ER GB Vesicles Cell membrane. |
Read the following statements carefully
A. | Lipid component of the plasma membrane mainly consists of phosphoglycerides. |
B. | Polar molecules can pass through the lipid bilayer of plasma membrane, therefore they do not require carrier proteins to facilitate their transport. |
C. | Secondary wall is capable of growth and it is formed on the outer side of the cell |
D. | Quasi fluid nature of lipid enables lateral movement of proteins within the overall lipid bilayer of plasma membrane |
E. | Middle lamella glues the different neighbouring cells together |
How many statements are incorrect?
1. Three
2. Five
3. Four
4. Two
The organelles formed by the process of packaging in the golgi apparatus is
1. | Double membrane organelle. |
2. | Possess single circular DNA molecule |
3. | Rich in hydrolases |
4. | Able to occupy up to 90 percent volume of the cell |
Mark the incorrect statement
1. | All the cell organelles perform different & specific function. |
2. | Basal body of cilia & flagella in prokaryotes is formed by cytoskeleton. |
3. | Endoplasmic reticulum helps in transport. |
4. | Microbodies are present in both plants and animals. |
Smooth endoplasmic reticulum performs all the
functions, except
1. | Production of glycoprotein. |
2. | Synthesis of lipid. |
3. | Synthesis of glycogen. |
4. | Synthesis of steroidal hormones |
Choose the incorrectly matched pair.
1. | Contractile vacuole - Excretion. |
2. | SER - Steroidal hormones synthesis. |
3. | Xanthophyll - Fat soluble pigment. |
4. | Eukaryotic flagellum - Extension of basal body. |