The tail of the phospholipid molecule:
1. | is hydrophilic and composed of phosphate |
2. | is hydrophilic and composed of saturated hydrocarbons |
3. | is hydrophobic and composed of saturated hydrocarbons |
4. | is hydrophobic and composed of unsaturated hydrocarbons |
Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?
1. Rough endoplasmic reticulum
2. Smooth endoplasmic reticulum
3. Golgi apparatus
4. Mitochondria
Fat soluble pigments like xanthophylls are present in:
1. Chromoplasts
2. Aleuroplasts
3. Elaioplasts
4. Amyloplasts
The two types of cellular organelles that transform energy are:
(1) Chromoplasts and Leucoplasts
(2) Mitochondria and Chloroplasts
(3) Mitochondria and Endoplasmic reticulum
(4) Chloroplasts and Golgi apparatus
The arrangement of outer and central microtubules in a cilium is called the:
1. 9 + 1 pattern
2. 9 + 0 pattern
3. Flagellin pattern
4. 9 + 2 pattern
Identify the correct statement regarding the part of a cell, the structure of which is shown in the given diagram:
1. | It is not found in the plant cells |
2. | It serves to provide an attachment with a surface for a bacterial cell |
3. | The structure is made of a protein called flagellin |
4. | It can be used for movement by a eukaryotic cell |
In the given diagram of chloroplast, enzymes required for the synthesis of carbohydrates and proteins are located in:
1. | A | 2. | B |
3. | C | 4. | D |
In the given diagram, what is true for both A and B?
1. They are involved in protein synthesis
2. They synthesize steroidal hormones in animal cells
3. They are a part of endomembranous system of a eukaryotic cell
4. They are continuous with the inner membrane of the nucleus
Consider the following statements:
I: | In animal cells, lipid like steroidal hormones are synthesized in SER. |
II: | Golgi apparatus is the important site for formation of glycoproteins & glycolipids. |
III: | Lysosomes carry alkaline hydrolases. |
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
Which of the following structure is not found in a prokaryotic cell?
(1) Nuclear envelope
(2) Ribosome
(3) Mesosome
(4) Plasma membrane