AIPMT-PRELIMS Botany Cell – The Unit of Life Class 11 Questions
42 questions
Select the correct statement from the following regarding cell membrane
Important site for formation of glycoproteins and glycolipids is
Protein synthesis in bacterial cell takes place in:
In eubacteria, a cellular component that resembles eukaryotic cell is:
Which one of the following organisms is not an example of eukaryotic cells
What are those structures that appear as 'beads-on-string' in the chromosomes when viewed under electron microscope?
The fluid mosaic model explains the structure of cell membranes. Lipids are some important components of membranes...
Which one of the following structures between two adjacent cells is an effective transport pathway?
Which one of the following has its own DNA?
The main arena of various types of activities of a cell is
Cytoskeleton is made up of:
Middle lamella is composed mainly of:
Vacuole in a plant cell:
Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
Select the wrong statement fom the following.
Which one of the following is not a constituent of cell membrane?
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
Which of the following statements regarding mitochondrial membrane is not correct?
A major breakthrough in the studies of cells came with the development of electron microscope. This is because:
Which of the following statements regarding cilia is not correct?
The cell membranes are mainly composed of:
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is:
A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?
Chlorophyll in chloroplasts is located in :
Genes for cytoplasmic male sterility in plants are generally located in:
Protein synthesis in an animal cell occurs:
According to 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?
Flagella of prokaryotic and eukaryotic cells differ in :-
Extranuclear inheritance is a consequence of presence of genes in -
In fluid mosaic model of plasma membrane
Ribosomes are produced in :-
In which of the animal dimorphic nucleus is found:
Difference in gram ⊕ and gram ⊖ bacteria is due to -
Extracnuclear chromosomes occur in :-
Element necessary for the middle lamella :-
Microtubules absent in :-
The movement of ions against the concentration gradient will be :
Which cell organelle is concerned with glycosylation of protein :
Function of telomeres in nucleus :
Which of the following ribosomes are engaged in protein synthesis in animal cell :
Extranuclear DNA is found in:
Lysosome contains: