Cell: The Unit of Life

Choose the correct statements regarding cell organelles and their inclusions. Choose the correct answer from the options given below:

1. A, B and C only
2. C, D and E only
3. A and B only
4. B, C and D only

Smooth endoplasmic reticulum .

1. is a site for the synthesis of carbohydrates
2. has ribosomes attached to its surface
3. is the major site for the synthesis of lipids
4. is actively involved in protein synthesis

Match List-I with List-II.

1. A-IV, B-III, C-I, D-II
2. A-III, B-IV, C-I, D-II
3. A-II, B-IV, C-I, D-III
4. A-II, B-IV, C-III, D-I

Endomembrane system includes .

1. Golgi complex, chloroplast, peroxisomes and vacuole
2. endoplasmic reticulum, Golgi complex, lysosomes and vacuole
3. endoplasmic reticulum, chloroplast, peroxisomes and vacuole
4. mitochondria, chloroplast, peroxisomes and vacuole

Given below are two statements : one is labelled as Assertion (A), and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below :

1. A is true but R is false
2. A is false but R is true
3. Both A and R are true and R is the correct explanation of A
4. Both A and R are true but R is not the correct explanation of A

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below.

1. Statement I is true but Statement II is false.
2. Statement I is false but Statement II is true.
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

Which of the following are NOT considered as the part of endomembrane system? Choose the most appropriate answer from the options given below:

1. A, C and E only
2. A and D only
3. A, D and E only
4. B and D only

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

1. RER has ribosomes attached to ER
2. SER is devoid of ribosomes
3. Only RER are present in prokaryotes
4. SER are the sites for lipid synthesis

If the pH in lysosomes is increased to alkaline, what will be the outcome?

1. Lysosomal enzymes will be more active
2. Hydrolytic enzymes will function more efficiently
3. Hydrolytic enzymes will become inactive
4. Lysosomal enzymes will be released into the cytoplasm

The organelles that are included in the endomembrane system are

1. Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes
2. Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes
3. Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles
4. Golgi complex, Mitochondria, Ribosomes and Lysosomes

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

1. Peroxisomes
2. Golgi bodies
3. Polysomes
4. Endoplasmic reticulum

Which of the following pair of organelles does not contain DNA?

1. Lysosomes and Vacuoles
2. Nuclear envelope and Mitochondria
3. Mitochondria and Lysosomes
4. Chloroplast and Vacuoles

Which of the following statements is not correct?

1. Lysosomes are membrane bound structures.
2. Lysosomes are formed by the process of packaging in the endoplasmic reticulum.
3. Lysosomes have numerous hydrolytic enzymes.
4. The hydrolytic enzymes of lysosomes are active under acidic pH.

The Golgi complex participates in

1. activation of amino acid
2. fatty acid breakdown
3. formation of secretory vesicles
4. respiration in bacteria

Which of the following events does not occur in rough endoplasmic reticulum?

1. Cleavage of signal peptide
2. Phospholipid synthesis
3. Protein folding
4. Protein glycosylation

Water soluble pigments found in plant cell vacuoles are

1. carotenoids
2. anthocyanins
3. xanthophylls
4. chlorophylls.

Which one of the following cell organelles is enclosed by a single membrane?

1. Mitochondria
2. Chloroplasts
3. Lysosomes
4. Nuclei

A cell organelle containing hydrolytic enzymes is

1. Ribosome
2. Mesosome
3. Lysosome
4. Microsome

Cellular organelles with membranes are -

1. endoplasmic reticulum, ribosomes and nuclei
2. lysosomes, Golgi apparatus and mitochondria
3. nuclei, ribosomes and mitochondria
4. chromosomes, ribosomes and endoplasmic reticulum

Select the correct matching in the following pairs :

1. Rough ER – Oxidation of fatty acids
2. Smooth ER – Oxidation of phospholipids
3. Rough ER – Synthesis of glycogen
4. Smooth ER – Synthesis of lipids

The osmotic expansion of a cell kept in water is chiefly regulated by:

1. Vacuoles
2. Plastids
3. Mitochondria
4. Ribosomes

The Golgi complex plays a major role :

1. as energy transferring organelles
2. in post translational modification of proteins and glycosidation of lipids
3. in trapping the light and transforming it into chemical energy
4. in digesting proteins and carbohydrates

Which one of the following organelle in the figure correctly matches with its function ? [Figure]

1. Golgi apparatus, formation of glycolipids
2. Rough endoplasmic reticulum, formation of glycoproteins
3. Rough endoplasmic reticulum, protein synthesis
4. Golgi apparatus, protein synthesis

A major site for synthesis of lipids is :

1. RER
2. Nucleoplasm
3. SER
4. Symplast

Which one of the following is not considered as a part of the endomembrane system ?

1. Vacuole
2. Lysosome
3. Golgi complex
4. Peroxisome

Important site for formation of glycoproteins and glycolipids is :

1. Plastid
2. Lysosome
3. Golgi apparatus
4. Vacuole

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along with – [Figure] Components : (i) Cristae of mitochondria (ii) Inner membrane of mitochondria (iii) Cytoplasm (iv) Smooth endoplasmic reticulum (v) Rough endoplasmic reticulum (vi) Mitochondrial matrix (vii) Cell vacuole (viii) Nucleus The correct components are :

1. (A) (v), (B) (iv), (C) (viii), (D) (iii)
2. (A) (i), (B) (iv), (C) (viii), (D) (vi)
3. (A) (v), (B) (i), (C) (iii), (D) (ii)
4. (A) (vi), (B) (v), (C) (iv), (D) (vii)

Vacuole in a plant cell:

1. is membrane-bound and contains storage proteins and lipids
2. is membrane-bound and contains water and excretory substances
3. lacks membrane and contains air
4. lacks membrane and contains water and excretory substances

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is -

1. Mitochondria
2. Endoplasmic Reticulum
3. Chloroplast
4. Lysosome

Lysosome contains:

1. Reductive enzymes
2. Oxidative enzymes
3. Anabolic enzymes
4. Hydrolytic enzymes