1071 + Interview Questions in CELL IN GENERAL AWARENESS Page 22 InterviewSolution

1051.	Name any two types of intercellular junctions.
Answer» Desmosomes and intercellular bridges.

Discussion

1052.	Axonemal arrangement of microtubules isA. 6 peripheral paris of doubles and one central pair of singletB. 6 peripheral pairs of doublets and one control singletC. 9 peripheral pairs of doublets and one central pair of singletD. 9 peripheral pairs of doublets and one central singlet
Answer» Correct Answer - C Axonemal arrangement of microtubules is 9 peripheral pairs of doublets and one central pair of singlets.

Discussion

1053.	The chromosomes which do not take part in cell division are I. L-chromosome II. Acentric III. Polycentric IV. DicentricA. Only IIB. I and IIC. III and IVD. Only I
Answer» Correct Answer - B

Discussion

1054.	Carrier molecules facilitating transport across cell membrane areA. ProteinaccousB. Fatty acidsC. StarchD. Alkaloids
Answer» Correct Answer - A

Discussion

1055.	Protein icebergs in a sea of lipids meansA. Unit membrane conceptB. Sandwich modelC. Fluid mosaic modelD. None of these
Answer» Correct Answer - C

Discussion

1056.	Extrinsic and intrinsic proteins found in plasma membrane are in the ratioA. `70:30`B. `30:70`C. `40:60`D. `60:40`
Answer» Correct Answer - D

Discussion

1057.	Out of proteins lipids and carbohydrates present in a 'cell membrane'.A. Carbohydrates are minimumB. Carbohydrates are maximumC. Lipids are minimumD. All three are in equal proportion
Answer» Correct Answer - A

Discussion

1058.	What are fibronectins ?
Answer» Fibronectins are glycorproteins that attach the animal cells to the extracellular matrix (cell coat) and are also connected to the integral proteins of cell membrane.

Discussion

1059.	What are lysosomal storage diseases ?
Answer» The lysosomal diseases cause accumulation of material awaiting digestion in the lysosomes. The first such disease was identified in 1963 by the Belgain investigator H.G. Hers. It was named glycogen storage disease. The cells of the person with this disease lack the lysosomal enzyme, `alpha`-glycoisdase, which degrades glycogen. As a result, the cells of liver, muscles and other tissues contain large glycogen filled lysosomes. In another lysosomal storage disease, lipids accumulate in the lysosomes due to lack of lipid-degrading enzyme.

Discussion

1060.	How can the exoplasmic surface of a cell membrane be distinguished from the cytoplasmic surface ?
Answer» The exoplasmic surface bears glycoprotein and glycolipid molecules and the cytoplasmic surface lack these molecules.

Discussion

1061.	In most of the plants, cell wall is made up ofA. CelluloseB. HemicelluloseC. Pectins and proteinsD. All of the above.
Answer» Correct Answer - D In plants, cell wall is made up of cellulose, hemicellulose, pectins and proteins.

Discussion

1062.	The outer membrane of mitochondria consists of transport channels calledA. tansporter proteinsB. porin proteinC. `H^(+)`-channlesD. aquaporins
Answer» Correct Answer - B

Discussion

1063.	MitochondriaA. are sausage-shaped cell organellesB. lack electron transport chainC. are single membrane bound organellesD. are semiautonomous
Answer» Correct Answer - D

Discussion

1064.	Which organelle occurs both in plants and animals ?A. Cell wallB. MitochondrionC. CentrioleD. Chloroplast
Answer» Correct Answer - B Mitochondria occurs both in plants and animals.

Discussion

1065.	Which method of transport in plasma membrane does not require carrier molecule ?A. Active transportB. Facilitated diffusionC. Simple diffusionD. `Na^(+)-K^(+)` pump
Answer» Correct Answer - C

Discussion

1066.	Read the assertion and reason carefully to mark the correct option in question. Assertion: In the cell membrane , the non-polar tail of saturated hydrocarbons is protected from the aqueous environment. Reason: The lipids are arranged within the membrane with polar head towards the outer sides and the hydrophobic tail towards the inner part.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - A In the cell membrane, the non-polar tail of saturated hydrocarbons is protected from the aqueous environment because the lipids are arranged within the membrane with the polar head towards the outer sides and the hydrophobic tail towards the inner part.

Discussion

1067.	The transport of polar molecules across the cell membrane requiresA. an ion of positive chargeB. hydrophilic carrier ionC. hydrophobic carrier ionD. a carrier protein
Answer» Correct Answer - D

Discussion

1068.	ATPase enzyme needed for muscle contraction is located in " " Or The contractile protein of skeletal muscle involving ATPase activity isA. ActininB. TroponinC. TropomyosinD. Myosin
Answer» Correct Answer - D

Discussion

1069.	In chloroplasts the chlorophyll is located inA. GranaB. PyrenoidC. StromaD. Both grana and stroma
Answer» Correct Answer - A

Discussion

1070.	Which of the following is peroxide-destroying enzyme present in peroxisome?A. Urate oxidaseB. CatalaseC. Amino acid oxidaseD. Feroxidase
Answer» Correct Answer - B

Discussion

1071.	What is the origin of Golgi apparatus.
Answer» Smooth endoplasmic reticulum.

Discussion

Explore topic-wise InterviewSolutions in .

Name any two types of intercellular junctions.

Axonemal arrangement of microtubules isA. 6 peripheral paris of doubles and one central pair of singletB. 6 peripheral pairs of doublets and one control singletC. 9 peripheral pairs of doublets and one central pair of singletD. 9 peripheral pairs of doublets and one central singlet

The chromosomes which do not take part in cell division are I. L-chromosome II. Acentric III. Polycentric IV. DicentricA. Only IIB. I and IIC. III and IVD. Only I

Carrier molecules facilitating transport across cell membrane areA. ProteinaccousB. Fatty acidsC. StarchD. Alkaloids

Protein icebergs in a sea of lipids meansA. Unit membrane conceptB. Sandwich modelC. Fluid mosaic modelD. None of these

Extrinsic and intrinsic proteins found in plasma membrane are in the ratioA. `70:30`B. `30:70`C. `40:60`D. `60:40`

Out of proteins lipids and carbohydrates present in a 'cell membrane'.A. Carbohydrates are minimumB. Carbohydrates are maximumC. Lipids are minimumD. All three are in equal proportion

What are fibronectins ?

What are lysosomal storage diseases ?

How can the exoplasmic surface of a cell membrane be distinguished from the cytoplasmic surface ?

In most of the plants, cell wall is made up ofA. CelluloseB. HemicelluloseC. Pectins and proteinsD. All of the above.

The outer membrane of mitochondria consists of transport channels calledA. tansporter proteinsB. porin proteinC. `H^(+)`-channlesD. aquaporins

MitochondriaA. are sausage-shaped cell organellesB. lack electron transport chainC. are single membrane bound organellesD. are semiautonomous

Which organelle occurs both in plants and animals ?A. Cell wallB. MitochondrionC. CentrioleD. Chloroplast

Which method of transport in plasma membrane does not require carrier molecule ?A. Active transportB. Facilitated diffusionC. Simple diffusionD. `Na^(+)-K^(+)` pump

The transport of polar molecules across the cell membrane requiresA. an ion of positive chargeB. hydrophilic carrier ionC. hydrophobic carrier ionD. a carrier protein

ATPase enzyme needed for muscle contraction is located in " " Or The contractile protein of skeletal muscle involving ATPase activity isA. ActininB. TroponinC. TropomyosinD. Myosin

In chloroplasts the chlorophyll is located inA. GranaB. PyrenoidC. StromaD. Both grana and stroma

Which of the following is peroxide-destroying enzyme present in peroxisome?A. Urate oxidaseB. CatalaseC. Amino acid oxidaseD. Feroxidase

What is the origin of Golgi apparatus.