What is the principal structural elements of a living cell?

What is the principal structural elements of a living cell?
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1 Answer

Answer :

Carbon
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1. In which year, African Export and Import Bank came into existence? 2. Which is known for extensive tropical rain forest? 3. Which transferred his capital from Patliputra to Vaishali ? 4. What is the principal structural elements of a living cell? 5. In which year was the first no confidence motion moved in the Lok Sabha after independence?

Description : 1. In which year, African Export and Import Bank came into existence? 2. Which is known for extensive tropical rain forest? 3. Which transferred his capital from Patliputra to Vaishali ? 4. What is the ... win at the Xth Asiad? 20. What is the role of in the rabbit and horse, the appendix?

Last Answer : Answer : 1. 1978 2. Congo basin 3. Shishunaga 4. Carbon 5. 1963 6. 1°C 7. 1890 8. Milinda 9. October 9 10. Mumbai 11. Mitochondria 12. 9 13. Vatsa 14. M. N. Roy 15. Seaborg 16. October 24 17. December, 22 18. Cholas 19. 4 20. It helps in digestion of cellulose

Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Description : Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Last Answer : (A) Molybdenum

The basic structural and functional unit of living organisms is - (1) Cell (2) Tissue (3) Organ (4) Systems

Description : The basic structural and functional unit of living organisms is - (1) Cell (2) Tissue (3) Organ (4) Systems

Last Answer : (1) Cell Explanation: Robert Hooke (1665) observed a section of cork under his microscope and found its structure resembling a 'honey comb'. He gave the name 'cell' to each of the ... structure. Two German biologists, M Schleiden and T Schwann, proposed the famous cell theory in 1938-39.

The basic structural and functional unit of living organisms is (1) Cell (2) Tissue (3) Organ (4) Systems

Description : The basic structural and functional unit of living organisms is (1) Cell (2) Tissue (3) Organ (4) Systems 

Last Answer : Cell

What are the 3 structural elements in the sniper?

Description : What are the 3 structural elements in the sniper?

Last Answer : What is the answer ?

What structural feature of their atoms is characteristic of elements in a group of the periodic table?

Description : What structural feature of their atoms is characteristic of elements in a group of the periodic table?

Last Answer : The Periodic Table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

Suppressor tRNAs can neutralize the effects of mutations in (A) Structural genes (B) Promoter regions (C) Enhancer elements(D) All of these

Description : Suppressor tRNAs can neutralize the effects of mutations in (A) Structural genes (B) Promoter regions (C) Enhancer elements(D) All of these

Last Answer : Answer : A

Suppressor mutations occur in (A) Structural genes (B) Promoter regions (C) Silencer elements (D) Anticodons of tRNA

Description : Suppressor mutations occur in (A) Structural genes (B) Promoter regions (C) Silencer elements (D) Anticodons of tRNA

Last Answer : Answer : D

Silencer elements (A) Are trans-acting factors (B) Are present between promoters and the structural genes (C) Decrease the expression of some structural genes (D) Encode specific repressor proteins

Description : Silencer elements (A) Are trans-acting factors (B) Are present between promoters and the structural genes (C) Decrease the expression of some structural genes (D) Encode specific repressor proteins

Last Answer : Answer : C

Besides structural genes that encode proteins, DNA contains some regulatory sequences which are known as (A) Operons (B) Cistrons (C) Cis-acting elements (D) Trans-acting factors

Description : Besides structural genes that encode proteins, DNA contains some regulatory sequences which are known as (A) Operons (B) Cistrons (C) Cis-acting elements (D) Trans-acting factors

Last Answer : Answer : C

Structural and Non-structural measures are elements of high category of Risk Reduction measures a. Socio-economic measures b. Physical measures c. Environmental measures d. Post disaster measures

Description : Structural and Non-structural measures are elements of high category of Risk Reduction measures a. Socio-economic measures b. Physical measures c. Environmental measures d. Post disaster measures

Last Answer : b. Physical measures

A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein

Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein

Last Answer : (a) enucleate condition

A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein.

Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein.

Last Answer : (a) enucleate condition

Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

The fundamental structural and func- tional unit of all living organisms is?

Description : The fundamental structural and func- tional unit of all living organisms is?

Last Answer : Cell

The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Description : The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Last Answer : a) sieve cells

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are (A) Cobalt, chromium & tungsten (B) Cobalt, chromium & nickel (C) Molybdenum, tungsten & chromium (D) Cobalt, zirconium & molybdenum

Description : Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are (A) Cobalt, chromium & tungsten (B) Cobalt, chromium & nickel (C) Molybdenum, tungsten & chromium (D) Cobalt, zirconium & molybdenum

Last Answer : : Option A

Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Description : Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Last Answer : ANSWER: GERMANIUM

Highlight the principal features of the social life of people living in Bombay. -SST 10th

Description : Highlight the principal features of the social life of people living in Bombay. -SST 10th

Last Answer : The European elite, the richer Parsis, Muslims and uppercaste traders and industrialists lived in sprawling, spacious bungalows. But more than 70 per cent of the working people lived in the thickly ... .Chawls were also the place for exchange of news about jobs, strikes, riots or demonstrations.

Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Description : Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : (3) Auto radiography Explanation: Radioactive elements can be traced out in living cell through a technique called Autoradiography.

The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Description : The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Last Answer : (a) co-factors of enzymes

Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Description : Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : Auto radiography

Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- Cell wall helps in cell to cell interaction and

Description : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- Cell wall helps in cell to cell interaction and

Last Answer : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- ... . D. If both Assertion & Reason are false.

Read the assertion and reason carefully to mark the correct option in question. 1. Assertion: Cell is the fundamental structural and functional unit o

Description : Read the assertion and reason carefully to mark the correct option in question. 1. Assertion: Cell is the fundamental structural and functional unit o

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Which of the following types of molecules are the major structural components of cell membranes?

Description : Which of the following types of molecules are the major structural components of cell membranes?

Last Answer : a. Phospholipids and proteins. ///// b. Phospholipids and cellulose.//// c. Nucleic acids and proteins.//// d. Glycoproteins and cholesterol.

Lipids have the following properties: (A) Insoluble in water and soluble in fat solvent (B) High energy content (C) Structural component of cell membrane (D) All of these

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Last Answer : Answer : D

Which of the following statement(s) is/are true concerning the proliferative phase of wound healing? a. The macrophage is the predominant cell type b. The pink or purple-red appearance of a wound is due to ingrowth and proliferation of endothelial cells c. Collagen, the dominant structural molecule of the wound matrix, contains two unique amino acids, hydroxyproline and hydroxylysine d. The predominant collagen type in a scar is type 3

Description : Which of the following statement(s) is/are true concerning the proliferative phase of wound healing? a. The macrophage is the predominant cell type b. The pink or purple-red appearance of a wound ... amino acids, hydroxyproline and hydroxylysine d. The predominant collagen type in a scar is type 3

Last Answer : Answer: b, c The proliferative phase of wound healing begins with the formation of a provisional matrix of fibrin and fibronectin as part of the initial clot formation. Initially, the provisional ... The principal collagen type scar is type 1, with lesser amounts of type 3 collagen also present

A high surface area to volume ratio in cells is important because it (a) Enables efficient transfer of wastes, nutrients and gases across the cell membrane (b) Prevents overproduction of cell proteins due to structural limitations (c) Allows many antigens on the surface for identification of self and non-self (d) Provides for better structural support to cope with external physical pressure

Description : A high surface area to volume ratio in cells is important because it (a) Enables efficient transfer of wastes, nutrients and gases across the cell membrane (b) Prevents overproduction of cell ... self and non-self (d) Provides for better structural support to cope with external physical pressure

Last Answer : Ans:(a)

A gene whose expression helps to identify transformed cell is known as (a) vector (b) plasmid (c) structural gene (d) selectable marker.

Description : A gene whose expression helps to identify transformed cell is known as (a) vector (b) plasmid (c) structural gene (d) selectable marker.

Last Answer : (d) selectable marker.

The fundamental structural and functional unit of nerves system is a. axon b. dendrite c. cell body d. neuron

Description : The fundamental structural and functional unit of nerves system is a. axon b. dendrite c. cell body d. neuron

Last Answer : neuron

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?(a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - Major source of energy (c) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Description : Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? (a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - ... ) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Last Answer : (d) A : Lecithin - A component of cell membrane

If you are asked to classify the various algae into distinct groups, which of the following characters you should choose? (a) Nature of stored food materials in the cell (b) Structural organization of thallus (c) Chemical composition of the cell wall (d) Types of pigments present in the cel

Description : If you are asked to classify the various algae into distinct groups, which of the following characters you should choose? (a) Nature of stored food materials in the cell (b) Structural organization of thallus (c) Chemical composition of the cell wall (d) Types of pigments present in the cel

Last Answer : (d) Types of pigments present in the cel

Cell theory includes all of the following except A.all organisms are composed of one or more cells B.the cell is the most primitive form of life C.the cell is the structural unit of life D.cells arise by division of preexisting cells

Description : Cell theory includes all of the following except A.all organisms are composed of one or more cells B.the cell is the most primitive form of life C.the cell is the structural unit of life D.cells arise by division of preexisting cells

Last Answer : B.the cell is the most primitive form of life

Cell theory includes all of the following except A- .all organisms are composed of one or more cells B- the cell is the most primitive form of life C- .the cell is the structural unit of life D- cells arise by division of preexisting cells

Description : Cell theory includes all of the following except A- .all organisms are composed of one or more cells B- the cell is the most primitive form of life C- .the cell is the structural unit of life D- cells arise by division of preexisting cells

Last Answer : the cell is the most primitive form of life

A gene whose expression helps to identify transformed cell is known as : (1) Vector (2) Plasmid (3) Structural gene (4) Selectable marker

Description : A gene whose expression helps to identify transformed cell is known as : (1) Vector (2) Plasmid (3) Structural gene (4) Selectable marker

Last Answer : 4) Selectable marker