Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along with:

  
 

Components :
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus

The correct components are:
 

	A	B	C	D
1.	(i)	(iv)	(viii)	(vi)
2.	(vi)	(v)	(iv)	(vii)
3.	(v)	(i)	(iii)	(ii)
4.	(v)	(iv)	(viii)	(iii)

Which one of the following is not considered as a part of the endomembrane system?

The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.

An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called:
1. Endoplasmic Reticulum
2. Plasmalemma
3. Cytoskeleton
4. Thylakoid

Which one of the following cellular parts is correctly described?

The cell membranes are mainly composed of:

1. Phospholipids

2. Proteins

3. Fats

4. Carbohydrates

According to the widely accepted "fluid mosaic model", cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect:

The main organelle involved in the modification and routing of newly synthesized proteins to their destinations is -

1. Endoplasmic Reticulum

2. Lysosome

3. Mitochondria

4. Chloroplast 

Chlorophyll in chloroplasts is located in:

1. Grana

2. Pyrenoid

3. Stroma

4. Both (1) and (3)

Role of microtubules is:
1.  To help in cell division
2.  Cell membrane formation
3.  Respiration
4.  Pinocytosis