Cell recognition and adhesion occur due to biochemicals of cell membrane named (a) Proteins (b) Lipids (c) Proteins and lipids (d) Glycoproteins and glycolipids

Cell recognition and adhesion occur due to biochemicals of cell membrane named (a) Proteins (b) Lipids (c) Proteins and lipids (d) Glycoproteins and glycolipids
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Cell recognition and adhesion occur due to biochemicals of cell membranes named (a) proteins (b) lipids (c) proteins and lipids (d) glycoproteins and glycolipids.

Description : Cell recognition and adhesion occur due to biochemicals of cell membranes named (a) proteins (b) lipids (c) proteins and lipids (d) glycoproteins and glycolipids.

Last Answer : (d) glycoproteins and glycolipids.

Important site for formation of glycoproteins and glycolipids is

Description : Important site for formation of glycoproteins and glycolipids is

Last Answer : Important site for formation of glycoproteins and glycolipids is A. Vacuole B. Golgi apparatus C. Plastid D. Lyssome

Important site for formation of glycoproteins and glycolipids is (a) vacuole (b) Golgi apparatus (c) plastid (d) lysosome.

Description : Important site for formation of glycoproteins and glycolipids is (a) vacuole (b) Golgi apparatus (c) plastid (d) lysosome.

Last Answer : (b) Golgi apparatus

Which one of the following organelle in the figure correctly matches with its function? (a) Golgi apparatus, formation of glycolipids (b) Rough endoplasmic reticulum, protein synthesis (c) Rough endoplasmic reticulum, formation of glycoproteins (d) Golgi apparatus, protein synthesis

Description : Which one of the following organelle in the figure correctly matches with its function? (a) Golgi apparatus, formation of glycolipids (b) Rough endoplasmic reticulum, protein synthesis (c) Rough endoplasmic reticulum, formation of glycoproteins (d) Golgi apparatus, protein synthesis

Last Answer : (b) Rough endoplasmic reticulum, protein synthesis

Match the column I with column II. Column-I Column-II A. Golgi apparatus (i) Synthesis of protein B. Lysosomes (ii) Trap waste and excretory products C. Vacuoles (iii) Formation of glycoproteins and glycolipids D. Ribosomes (iv) Digesting biomolecules Choose the right match from options given below. (a) A-(iii), B-(iv), C-(ii), D-(i) (b) A-(iv), B-(iii), C-(i), D-(ii) (c) A-(iii), B-(ii), C-(iv), D-(i) (d) A-(i), B-(ii), C-(iv), D-(iii)

Description : Match the column I with column II. Column-I Column-II A. Golgi apparatus (i) Synthesis of protein B. Lysosomes (ii) Trap waste and excretory products C. Vacuoles (iii) Formation of glycoproteins and glycolipids D. Ribosomes (iv) Digesting ... ), C-(iv), D-(i) (d) A-(i), B-(ii), C-(iv), D-(iii)

Last Answer : (a) A-(iii), B-(iv), C-(ii), D-(i)

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells? (a) Endoplasmic reticulum (b) Peroxisomes (c) Golgi bodies (d) Polysomes

Description : Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells? (a) Endoplasmic reticulum (b) Peroxisomes (c) Golgi bodies (d) Polysomes

Last Answer : (c) Golgi bodies

out of proteins; lipids and carbohydrates present in a cell membrane; what is true?

Description : out of proteins; lipids and carbohydrates present in a cell membrane; what is true?

Last Answer : Carbohydrates are minimum

According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? (a) Proteins in cell membranes can travel within the lipid bilayer. (b) Proteins can also undergo flip-flop movements in the lipid bilayer. (c) Proteins can remain confined within certain domains of the membrane.(d) Many proteins remain completely embedded within the lipid bilayer.

Description : According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several ... domains of the membrane. (d) Many proteins remain completely embedded within the lipid bilayer.

Last Answer : (b) Proteins can also undergo flip-flop movements in the lipid bilayer.

Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?(a) While proteins can flip-flop, lipids can not (b) Neither lipids, nor proteins can flip-flop (c) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Description : Keeping in view the fluid mosaic model' for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid ... ) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Last Answer : (d) While lipids can rarely flip-flop, proteins cannot.

Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Description : Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Last Answer : (d) is membrane-bound and contains water and excretory substances.

Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell membrane. (c) Lipids are arranged in a bilayer with polar heads towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Description : Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell ... towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Last Answer : (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.

Select the correct statement from the following regarding cell membrane (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson (2) Na+ and K+ ions move across cell membrane by passive transport (3) Proteins make up 60 to 70% of the cell membrane (4) Lipids are arranged in a bilayer with polar heads towards the inner part

Description : Select the correct statement from the following regarding cell membrane (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson (2) Na+ and K+ ions move across cell membrane by ... of the cell membrane (4) Lipids are arranged in a bilayer with polar heads towards the inner part

Last Answer : (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids

Description : Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids

Last Answer : Answer : D

Lipids are stored in the body mainly in the form of (A) Phospholipids (B) Glycolipids (C) Triglycerides (D) Fatty acids

Description : Lipids are stored in the body mainly in the form of (A) Phospholipids (B) Glycolipids (C) Triglycerides (D) Fatty acids

Last Answer : Answer : C

Which one of the following is not a constituent of cell membrane? (a) Glycolipids (b) Proline (c) Phospholipids (d) Cholesterol

Description : Which one of the following is not a constituent of cell membrane? (a) Glycolipids (b) Proline (c) Phospholipids (d) Cholesterol

Last Answer : (b) Proline

Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Description : Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Last Answer : Answer : D

.Plasma membrane is made of (a) proteins and carbohydrates (b) proteins and lipids (c) proteins, lipids and carbohydrates (d) proteins, some nucleic acid and lipids.

Description : .Plasma membrane is made of (a) proteins and carbohydrates (b) proteins and lipids (c) proteins, lipids and carbohydrates (d) proteins, some nucleic acid and lipids.

Last Answer : (c) proteins, lipids and carbohydrates

In a plasma membrane, which of the following provides a general barrier to the movement of molecules? a) lipids b) proteins c) carbohydrates d) all of these

Description : In a plasma membrane, which of the following provides a general barrier to the movement of molecules? a) lipids b) proteins c) carbohydrates d) all of these

Last Answer : ANSWER: A -- LIPIDS 

Modification of proteins and lipids as glycopeptides and lipo-proteins occur in (A) Ribosomes (B) Golgi apparatus (C) SER (D) All A, B and C

Description : Modification of proteins and lipids as glycopeptides and lipo-proteins occur in (A) Ribosomes (B) Golgi apparatus (C) SER (D) All A, B and C

Last Answer : (B) Golgi apparatus

The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. The process can occur in either a constitutive or regulated process c. A regulated secretion is triggered by a stimulus, most likely a hormone or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Description : The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. ... or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Last Answer : Answer: a, b, c Transport vesicles that bud off the Golgi network carry both material to be secreted from the cell and protein destined to become components of the plasma ... but may also involve generation of diacylglycerol or production of cyclic AMP which activate kinases or phosphatases

With regard to membrane receptors for hormones: a. they are often glycoproteins b. they are important for hormones made up of steroid c. those for insulin exhibit an intrinsic protein kinase activity d. glucagon uses calcium as a second messenger

Description : With regard to membrane receptors for hormones: a. they are often glycoproteins b. they are important for hormones made up of steroid c. those for insulin exhibit an intrinsic protein kinase activity d. glucagon uses calcium as a second messenger

Last Answer : they are often glycoproteins

Proteins that carries Iron into different tissues is (A) Ceruloplasmin (B) Trans cortin (C) Mucoproteins (D) Glycoproteins

Description : Proteins that carries Iron into different tissues is (A) Ceruloplasmin (B) Trans cortin (C) Mucoproteins (D) Glycoproteins

Last Answer : Answer : B

Plasma proteins which contain more than 4% hexosamine are (A) Microglobulins (B) Glycoproteins (C) Mucoproteins (D) Orosomucoids

Description : Plasma proteins which contain more than 4% hexosamine are (A) Microglobulins (B) Glycoproteins (C) Mucoproteins (D) Orosomucoids

Last Answer : Answer : C

The Golgi complex (A) Synthesizes proteins (B) Produces ATP (C) Provides a pathway for transporting chemicals (D) Forms glycoproteins

Description : The Golgi complex (A) Synthesizes proteins (B) Produces ATP (C) Provides a pathway for transporting chemicals (D) Forms glycoproteins

Last Answer : D

The green colour of the leaves is due to the presence of - (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

Description : The green colour of the leaves is due to the presence of - (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

Last Answer : (3) Chlorophyll Explanation: The green color in leaves is caused by the presence of a compound called "chlorophyll," which the plant produces to do photosynthesis, which is how plants get energy from ... and so green is not absorbed and is reflected, making the plant look green to our eyes.

The green colour of the leaves is due to the presence of (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

Description : The green colour of the leaves is due to the presence of (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

Last Answer : Chlorophyll

Biochemicals oxygen demands in a river water

Description : Biochemicals oxygen demands in a river water

Last Answer : Biochemicals oxygen demands in a river water A. Remains unchanged when algal bloom occurs B. Increases ... D. Gives a measure of salamonella in water.

Can small lipids diffuse into cell membrane through diffusion?

Description : Can small lipids diffuse into cell membrane through diffusion?

Last Answer : Feel Free to Answer

What is the major type of lipids found in the cell membrane?

Description : What is the major type of lipids found in the cell membrane?

Last Answer : Need answer

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

Description : 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

Last Answer : Answer : D

06. A hydrophilic medicinal agent has the following property: a) Low ability to penetrate through the cell membrane lipids b) Penetrate through membranes by means of endocytosis c) Easy permeation through the blood-brain barrier d) High reabsorption in renal tubules

Description : 06. A hydrophilic medicinal agent has the following property: a) Low ability to penetrate through the cell membrane lipids b) Penetrate through membranes by means of endocytosis c) Easy permeation through the blood-brain barrier d) High reabsorption in renal tubules

Last Answer : a) Low ability to penetrate through the cell membrane lipids

RNA is intimately associated with synthesis of which constituent of the cell. a. Carbohydrates b. Proteins c. Lipids d. Inorganics

Description : RNA is intimately associated with synthesis of which constituent of the cell. a. Carbohydrates b. Proteins c. Lipids d. Inorganics

Last Answer : Proteins

What are the most diverse molecules in the cell? (a) Lipids (b) Mineral salts (c) Proteins (d) Carbohydrates (

Description : What are the most diverse molecules in the cell? (a) Lipids (b) Mineral salts (c) Proteins (d) Carbohydrates (

Last Answer : (c) Proteins

Microtubule is involved in the (a) muscle contraction (b) membrane architecture (c) cell division (d) DNA recognition

Description : Microtubule is involved in the (a) muscle contraction (b) membrane architecture (c) cell division (d) DNA recognition

Last Answer : (c) cell division

The door to your house is like the __________________ of a cell membrane? (A) Phospholipid bilayer (B) Integral protein (C) Recognition protein (D) Peripheral protein

Description : The door to your house is like the __________________ of a cell membrane? (A) Phospholipid bilayer (B) Integral protein (C) Recognition protein (D) Peripheral protein

Last Answer : (B) Integral protein

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)

Which of the following statement(s) is/are true concerning carrier proteins? a. Carrier proteins are distinguished by three types of mechanisms: carrier-type, channel-type, and conduction-type b. Conformational changes in the membrane protein occur between the conducting and the nonconducting states c. A channel-type carrier protein has two states—closed and open d. Carrier-type transport proteins are equally accessible from either side of the membrane

Description : Which of the following statement(s) is/are true concerning carrier proteins? a. Carrier proteins are distinguished by three types of mechanisms: carrier-type, channel-type, and conduction-type b. ... and open d. Carrier-type transport proteins are equally accessible from either side of the membrane

Last Answer : Answer: b, c Most transport proteins appear to function as carriers, rather than channels. Important distinctions can be made between types of carrier proteins on the basis of transport kinetics. ... a carrier mechanism, the binding site is available only one side of the membrane at any instant

Hormone receptors possess all the following properties except (A) All of them are proteins (B) They possess a recognition domain (C) They bind hormones with a high degree of specificity (D) Number of receptors in a target cell is constant

Description : Hormone receptors possess all the following properties except (A) All of them are proteins (B) They possess a recognition domain (C) They bind hormones with a high degree of specificity (D) Number of receptors in a target cell is constant

Last Answer : Answer : D

The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion

Description : The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion

Last Answer : (d) cohesion and adhesion.

Cholesterol is an example of (a) Membrane lipids (b) Triglycerides (c) Steroids (d) Adipose tissue

Description : Cholesterol is an example of (a) Membrane lipids (b) Triglycerides (c) Steroids (d) Adipose tissue

Last Answer : The correct answer is (c) Steroids. Cholesterol is a type of steroid, which is a specific class of lipids. It is an essential molecule found in animal cell membranes and is involved in various ... is a type of lipid, it is not classified as a membrane lipid, triglyceride, or adipose tissue.

Membrane lipids of chillsensitive plants contain - (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Description : Membrane lipids of chillsensitive plants contain - (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Last Answer : (4) high proportion of unsaturated fatty acids. Explanation: The membranes of chill sensitive plants have been found to have about a 2:1 ratio of unsaturated to saturated fatty ... increases and the critical temperature decreases when chill-sensitive plants are acclimated to a low temperature.

The phospholipids present in cytoplasm membrane of the archaeo- bacteria is A- phosphoglycerides B- polyisoprenoid C- polyisoprenoid branched chain lipids D- none of the bove

Description : The phospholipids present in cytoplasm membrane of the archaeo- bacteria is A- phosphoglycerides B- polyisoprenoid C- polyisoprenoid branched chain lipids D- none of the bove

Last Answer : polyisoprenoid branched chain lipids

″Proteins icebergs in a sea of lipids” is stated by (A) Lamellar Model (B) Unit-membrane Model (C) Fluid-Mosaic model (D) Micellar Model

Description : ″Proteins icebergs in a sea of lipids” is stated by (A) Lamellar Model (B) Unit-membrane Model (C) Fluid-Mosaic model (D) Micellar Model

Last Answer : (C) Fluid-Mosaic model

Membrane lipids of chillsensitive plants contain (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Description : Membrane lipids of chillsensitive plants contain (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Last Answer : high proportion of unsaturated fatty acids.

Given a stream of text, Named Entity Recognition determines which pronoun maps to which noun. a) False b) True

Description : Given a stream of text, Named Entity Recognition determines which pronoun maps to which noun. a) False b) True

Last Answer : a) False

The plants popularly known as 'petro crops' are rich in 1. Carbohydrates 2. Hydrocarbons 3. Proteins 4. Lipids The correct answer is: (a) 1, 2 and 3 (b) 1, 3 and 4 (c) 2, 3 and 4 (d) 2 and 4

Description : The plants popularly known as 'petro crops' are rich in 1. Carbohydrates 2. Hydrocarbons 3. Proteins 4. Lipids The correct answer is: (a) 1, 2 and 3 (b) 1, 3 and 4 (c) 2, 3 and 4 (d) 2 and 4

Last Answer : Ans:(d)

Amino acids are the building blocks of (a) Vitamins (b) Starch (c) Proteins (d) Lipids

Description : Amino acids are the building blocks of (a) Vitamins (b) Starch (c) Proteins (d) Lipids

Last Answer : Ans:(c)

Enzymes belong to the category of (a) Proteins (b) Lipids (c) Carbohydrates (d) Steroids

Description : Enzymes belong to the category of (a) Proteins (b) Lipids (c) Carbohydrates (d) Steroids

Last Answer : Ans:(a)

Consider the following statements - 1. Cuba is considered the sugar bowl of the world 2. Sugar was a rare commodity in Europe till the middle ages 3. Honey is a rich source of vitamins and minerals 4. All green plants synthesize sugar that are subsequently converted into lipids, polysaccharides, and/or proteins Which of the above statement/s is/are true? (a) Only 1 (b) 1 and 3 (c) 2 and 3 (d) 2 and 4

Description : Consider the following statements - 1. Cuba is considered the sugar bowl of the world 2. Sugar was a rare commodity in Europe till the middle ages 3. Honey is a rich source of vitamins and minerals 4. All green plants synthesize sugar ... is/are true? (a) Only 1 (b) 1 and 3 (c) 2 and 3 (d) 2 and 4

Last Answer : Ans:(d)

Which of the following is/are function(s) of liposchondria? (I) Chemical modification of lipids and proteins (II) Detoxification (III) Formation of ac

Description : Which of the following is/are function(s) of liposchondria? (I) Chemical modification of lipids and proteins (II) Detoxification (III) Formation of ac

Last Answer : Which of the following is/are function(s) of liposchondria? (I) Chemical modification of lipids and ... are correct D. II and III are incorrect