Ribosome Structure

Q.

How do ribosomes and Golgi bodies work together?

Q.

What are polysomes?

Q.

Which organelle is called the factory of ribosomes?

Q.

Ribosomes are found in:

1. Cytoplasm and nucleus

2. Golgi complex and nucleus

3. Mitochondria and bacterial cell

4. Endoplasmic Reticulum and Golgi complex

Q.

Ribosomes are the centre for which of the following?

1. Respiration

2. Photosynthesis

3. Synthesis of fats

4. Synthesis of Protein

Q. Which of the following features is/are correct regarding ribosomes?
I. Non-membrane bound
II. Absent in plastids and mitochondria
III. Present in the cytoplasm and RER
IV. Take part in protein synthesis

1. Only II
2. I and II
3. I, II, III and IV
4. I, III and IV

Q.

List two essential roles of ribosome during translation.

Q. Association of mRNA with many ribosomes is

1. Informosome
2. Polysome
3. Kinetochore
4. Centrosome

Q.

Is translation an anabolic process?

Q. How do m-RNA, t-RNA and ribosomes help in the process of translation? [5]

Q. Ribosome is the site of protein synthesis in a cell.

1. True
2. False

Q.

Where are proteins synthesized inside the cell?

Q. Light energy is converted into chemical energy in the presence of

1. Pyrenoids
2. Chloroplasts
3. Ribosomes
4. Mesosomes

Q. $70$S type of ribosome shows two units whose sedimentation constants are?

1. $40$S and $30$S
2. $50$S and $20$S
3. $50$S and $30$S
4. $60$S and $20$S

Q. Which enzyme is present in the ribosome's larger subunit necessary for peptide bond formation?

Q. $70S$ ribosome is present in

1. Mitochondria
2. Chlroroplast
3. Prokaryotic
4. All of the above

Q. Regarding the assertion and reason, select the correct option.
Assertion $\left[A\right]$: Ribosomes are also known as ribozymes.
Reason $\left[R\right]$: Ribosomes facilitate their binding with the mRNA on their own.

1. A is true but R is false
2. R is true but A is false.
3. Both A and R are true, but R does not explain A
4. Both A and R are true and R explains A

Q. The primary job of rRNA in the smaller subunit of ribosome is to

1. Provide some part of the genetic information
2. Facilitate the binding of tRNA to the ribosome
3. Facilitate the binding of mRNA to the ribosome
4. Facilitate the transfer of peptidyl bonds between amino acids

Q. The subcellular components can be separated by

1. Paper chromatography
2. Autoradiography
3. Gel electrophoresis
4. Differential and density gradient centrifugation

Q. The primary job of rRNA in the larger subunit of ribosome is to

1. Provide some part of the genetic information
2. Facilitate the transfer of peptidyl bonds between amino acids
3. Keep both the units of the ribosome bound together
4. Facilitate the binding of tRNA to the ribosome

Q.

List two essential roles of ribosome during translation.

Q. Ribosome is the site of protein synthesis in a cell.

1. False
2. True

Q.

List two essential roles of ribosome during translation.

Q. Ribosomes are a mixture of

1. rRNA, tRNA, mRNA and structural proteins
2. mRNA, tRNA, target amino acids and structural proteins
3. rRNA and structural proteins
4. Endoplasmic reticulum, rRNA and structural proteins

Q. A tRNA molecule has four active sites. Where are these sites and what does each do?

Q.

Give a function of ribosome.

Q. The primary job of rRNA in the larger subunit of ribosome is to

1. Provide some part of the genetic information
2. Facilitate the binding of tRNA to the ribosome
3. Facilitate the transfer of peptidyl bonds between amino acids
4. Keep both the units of the ribosome bound together

Q. The primary job of rRNA in the smaller subunit of ribosome is to

1. Facilitate the binding of tRNA to the ribosome
2. Facilitate the binding of mRNA to the ribosome
3. Facilitate the transfer of peptidyl bonds between amino acids
4. Provide some part of the genetic information

Q. Which among the following is the functional unit of protein synthesis?

1. Dictyosome
2. Polysome
3. Peroxisome
4. Lysosome

Q. Microbodies resemble mitochondria in

1. Using oxygen
2. Producing reducing power
3. Having catalase
4. Formation of ATP