Which of the following are not membrane-bound?
1. Ribosomes
2. Lysosomes
3. Mesosomes
4. Vacuoles
Which of the following structure is not found in a prokaryotic cell?
1.Ribosome
2.Mesosome
3.Plasma membrane
4.Nuclear envelope
The structures that help some bacteria to attach to rocks and/or host tissues are:
1. | Fimbriae | 2. | Mesosomes |
3. | Holdfast | 4. | Rhizoids |
Chromatophores take part in :
1. Growth
2. Movement
3. Respiration
4. Photosynthesis
Identify the correct order of organisation of genetic material from largest to smallest:
1. Genome, chromosome, nucleotide, gene
2. Genome, chromosome, gene, nucleotide
3. Chromosome, genome, nucleotide, gene
4. Chromosome, gene, genome, nucleotide
A protoplast is a cell :
1. without nucleus
2. undergoing division
3. without cell wall
4. without plasma membrane
Which one of the following cell organelles is enclosed by a single membrane?
1. | Nuclei | 2. | Mitochondria |
3. | Chloroplasts | 4. | Lysosomes |
A cell organelle containing hydrolytic enzymes is
1. | mesosome | 2. | lysosome |
3. | microsome | 4. | ribosome |
Cell is the fundamental structural and functional unit of all living organisms. This statement can be best justified by the fact that:
1. | The cells contain nucleic acids that contain genetic information |
2. | A large number of organelles present in the cell perform various functions |
3. | Anything less than a complete structure of a cell does not ensure independent living |
4. | All multi-cellular organisms begin their life as a single celled zygote |
Who first saw and described a living cell?
1. | Anton Von Leeuwenhoek | 2. | Robert Hooke |
3. | Robert Brown | 4. | Rudolph Virchow |