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.
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 |
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.