Endoplasmic Reticulum

Q.

Non membrane bound cell organelle is

1. Vacuoles

2. Ribosomes

3. lysosomes

4. ER

Q.

What is the main function of the sarcoplasmic reticulum?

Q. Mitochondria and chloroplast are not the part of endomembrane system because

1. Their functions are not coordinated with those of golgi complex, ER, lysosomes and vacuoles
   
2. They are semiautonomous cell organelles
   
3. They work in coordination with lysosomes and vacuole only
   
4. They are double membrane bound organelles
   

Q.

Who coined the term 'nucleolus'?

1. Robert Brown

2. Camillo Golgi

3. Fontana

4. Bowman

Q. Which among the following is not a part of the endomembrane system?

1. Mitochondria
2. Lysosomes
3. Endoplasmic reticulum
4. Vacuoles

Q.

Peptide synthesis inside a cell takes place in

1. Ribosomes

2. Chromoplast

3. Mitochondria

4. Chloroplast

Q. The rough endoplasmic reticulum (RER) in the cells are because of the presence of

1. mitochondria associated with ER
2. ribosomes on the surface of ER
3. volutin granules on the surface of ER
4. sulphur granules on the surface of ER

Q. SER is involved in the synthesis of

Q.

Which is NOT an end product of eukaryotic cellular aerobic respiration?

1. carbon dioxide

2. water

3. ATP

4. oxygen

Q. Lipid or steroid synthesis are functions of:

1. Chlorophyll
2. Lysosome
3. Golgi complex
4. Endoplasmic reticulum

Q.

Which of the following organelles does not have a membrane?

1. Ribosome

2. Nucleus

3. Mitochondria

4. Chloroplast

Q. SER is involved in the synthesis of

1. lipids
2. proteins
3. steroid hormones
4. both a and c

Q.

Protein biosynthesis takes place in

1. Ribosomes

2. Lysosomes

3. ER

4. Golgi

Q.

Statement 1: Nuclear membrane and the endoplasmic reticulum were originally formed from the invaginations of the cell membrane.
Statement 2: Mitochondria and chloroplast are the results of a symbiotic association of bacteria with primitive pre-eukaryotic cells.

1. Only statement 2 is true

2. Only statement 1 is true

3. Both the statements are true

4. Both the statements are false

Q.

What is the role of sarcoplasmic reticulum, myosin head and F-actin during contraction of striated muscle of humans?

Q. Consider the following statements
I. The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.
II. ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen.
III. Ribosomes are involved in protein synthesis.
IV. Mitochondria help in oxidatiove phosphorylation and generation of ATP.
Which of these statements is true?

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

Q.

The smallest cell organelle is

1. Mitochondria

2. Microfilament

3. Microtubule

4. Ribosome

Q.

palade discovered

1. ribosomes

2. lysosomes

3. ER

4. golgi complex

Q.

Ribosomes are formed in

1. Cytoplasm

2. Golgi bodies

3. Golgi bodies

4. Plasma membrane

Q. Which among the following is not a part of the endomembrane system?

Q.

Which among the following are the “protein mills” of the cellular factory?

1. Centrioles

2. Sphaerosomes

3. Lysosomes

4. Ribosomes

Q. 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

1. $\left(a\right)-\left(iii\right),\left(b\right)-\left(i\right),\left(c\right)-\left(ii\right),\left(d\right)-\left(iv\right)$
2. $\left(a\right)-\left(ii\right),\left(b\right)-\left(i\right),\left(c\right)-\left(iii\right),\left(d\right)-\left(iv\right)$
3. $\left(a\right)-\left(i\right),\left(b\right)-\left(ii\right),\left(c\right)-\left(iii\right),\left(d\right)-\left(iv\right)$
4. $\left(a\right)-\left(iv\right),\left(b\right)-\left(ii\right),\left(c\right)-\left(i\right),\left(d\right)-\left(iii\right)$

Q. Which of the following are functions of the RER?

1. Protein synthesis
2. Lipid synthesis
3. Hormone secretion
4. Protein folding

Q.

Which of the following parts is missing in cells of meristematic tissue?

1. Endoplasmic Reticulum

2. Nucleus

3. Cell Membrane

4. Cytoplasm