Match the following columns and select the correct option :
Column - I | Column - II | ||
(a) | Smooth endoplasmic reticulum | (i) | Protein synthesis |
(b) | Rough endoplasmic reticulum | (ii) | Lipid synthesis |
(c) | Golgi complex | (iii) | Glycosylation |
(d) | Centriole | (iv) | Spindle formation |
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iii) | (iv) |
2. | (iii) | (i) | (ii) | (iv) |
3. | (iv) | (ii) | (i) | (iii) |
4. | (i) | (ii) | (iii) | (iv) |
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The biosynthesis of ribosomal RNA occurs in:
1. | Ribosomes | 2. | Golgi apparatus |
3. | Microbodies | 4. | Nucleolus |
Which of the following statement about inclusion bodies IS incorrect ?
1. These are involved in ingestion of food particles.
2. They lie free in the cytoplasm.
3. These represent reserve material in cytoplasm.
4. They are not bound by any membrane.
Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
1. | Peroxisomes | 2. | Golgi bodies |
3. | Polysomes | 4. | Endoplasmic reticulum |
Which of the following cell organelles is present in the highest number in secretory cells?
1. | Mitochondria | 2. | Golgi complex |
3. | Endoplasmic reticulum | 4. | Lysosomes |
The largest structures passed through the nuclear pores are:
1. | rDNA | 2. | Lamin proteins |
3. | mRNA | 4. | Ribosome subunits |
In a comparison of a typical bacterial cell and a typical human cell, which of the following would be higher for a bacterial cell?
1. | Diameter | 2. | Surface area |
3. | Volume | 4. | Surface area to volume ratio |
The space between the two nuclear membranes is called the perinuclear space and is continuous with the:
1. | Nuclear pore complex | 2. | Cytoplasm |
3. | RER lumen | 4. | Golgi lumen |
Consider the given two statements:
I. Cytoplasmic streaming is more important in plant and algal cells than in animal cells
II. Plant and algae cells are generally larger than animal cells
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
A hydrophilic hormone binds to a receptor on the surface of the cell membrane. This receptor is most likely to be a:
1. | lipid | 2. | protein |
3. | carbohydrate | 4. | cholesterol |