Prokaryotic Cell

Q.

What are $4$ similarities between prokaryotic and eukaryotic cells?

Q.

Which of the following is correct:

(a) Cells of all living organisms have a nucleus.

(b) Both animal and plant cells have a well-defined cell wall.

(c) In prokaryotes, there are no membrane-bound organelles.

(d) Cells are formed de novo from abiotic materials.

Q. PPLO means

1. Pleuro Pneumonia Like Organisms
2. Poly Pneumonia Like Organisms
3. Prokaryotic Pleural Like Organisms
4. Pleural Pneumococcal Like Organisms

Q. Which of the following is present in prokaryotic cells?

1. Nuclear envelope
2. ER
3. 80S ribosomes
4. DNA
5. Lysosomes
6. Cell wall

1. 1, 2, 3, 5
2. 3, 4, 6
3. 1, 2, 5
4. 4, 6

Q. Which of the following correctly describes the difference between R and S-strains of Streptococcus pneumoniae (pneumococcus) bacteria in Frederick Griffith’s experiment?

1. The S-strain bacteria have a lipid coat while R-strain bacteria have a mucous coat.
2. The S-strain bacteria have a mucous (polysaccharide) coat while R-strain does not.
3. Mice infected with the S-strain(virulent) do not develop pneumonia but mice infected with the R-strain(non-virulent) develop pneumonia.
4. The S-strain bacteria produce rough colonies, while the R-strain produces smooth colonies.

Q.

Which statement(s) regarding plasmids is/are incorrect?

1. Self-replicating

2. Single-stranded DNA

3. Double-stranded DNA

4. Confer antibiotic resistance

5. Part of genomic DNA

1. 2, 5
2. 2, 5, 4
3. 1, 3, 4
4. 3, 5

Q.

All eukaryotic unicellular organisms belong to:

1. Monera

2. Protista

3. Fungi

4. Bacteria

Q.

The only cell organelle seen in a prokaryotic cell is:

1. Mitochondria

2. Ribosomes

3. Plastids

4. Lysosomes

Q.

Do Prokaryotes have rough and smooth ER?

Q.

what is right and left handed dna?

Q.

How did prokaryotes evolve?

Q.

Are chromatophores present in prokaryotes?

Q.

What is genophore?

Q.

Which among the following statements is not correct about plasmids?

1. It has a circular DNA

2. It has an antibiotic-resistant gene

3. It has the ability of autonomous replication

4. Its DNA is as long as chromosomal DNA

Q.

What are the characteristics of prokaryotic cell?

Q.

Do Prokaryotes have a chromosome?

Q. The presence of an extrachromosomal circular DNA called as a plasmid is a characteristic feature of

1. plants
2. animals
3. prokaryotes
4. fungi

Q. Which of the following statements is correct regarding the genomic DNA of bacteria?

1. DNA is linear, not coiled around histone proteins, and organised into a single chromosome
2. DNA is circular, associated with histone proteins, and organised into two chromosomes
3. DNA is linear, associated with histone proteins, and organised in two chromosomes
4. DNA is circular, not associated with histone proteins, and organised into a single chromosome

Q.

Are cilia found in bacteria?

Q.

What is the function of the ribosomes on the endoplasmic reticulum?

Q.

Which Came First Prokaryotes Or Eukaryotes?

Q.

What are the benefits of prokarytoes?

Q. A nucleus which lacks a nuclear membrane as found in the members of Kingdom Monera is called as a

1. nucleoid
2. none of the above
3. karyon
4. true nucleus

Q.

How are a few microbes able to survive in extreme heat and cold?

Q. The region in the bacterial cell that has genomic DNA is called

1. nucleus
2. nucleoid
3. none of these
4. nucleoplasm

Q.

Why do prokaryotes have operons?

Q. Which of the following features of the genetic code indicates that a particular codon codes for the same amino acid in bacteria and humans?

1. Genetic code is specific
2. Genetic code is unambiguous
3. Genetic code is degenerate
4. Genetic code is nearly universal

Q. Who called protoplasm as physical basis of life

1. Purkinje
2. Robertson
3. Huxley
4. Hanstein

Q.

Where is the DNA in a prokaryote?

Q.

What is the core of the flagella called?