The plasma membrane consists mainly of (a) phospholipids embedded in a protein bilayer (b) proteins embedded in a phospholipid bilayer (c) proteins embedded in a polymer of glucose molecules (d) proteins embedded in a carbohydrate bilayer

The plasma membrane consists mainly of
(a) phospholipids embedded in a protein bilayer
(b) proteins embedded in a phospholipid bilayer
(c) proteins embedded in a polymer of glucose
molecules
(d) proteins embedded in a carbohydrate bilayer
by

1 Answer

Answer :

(b) proteins embedded in a phospholipid bilayer
by

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The plasma membrane consists mainly of

Description : The plasma membrane consists mainly of

Last Answer : The plasma membrane consists mainly of A. proteins embedded in a carbohydrate bilayer B. proteins ... embedded in a polymer of glucose molecules D.

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Last Answer : Answer : C

Dolichol phosphate is A- a complex lipid involved in docking vesicles with the plasma membrane B- the anchor on which sugars assemble before transfer to proteins C- a chaperone used in protein folding D- a product of phospholipase C activation

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Last Answer : the anchor on which sugars assemble before transfer to proteins

Which is associated with a steroid hormone? A) cyclic AMP B) the second messenger system C) production of new proteins D) activation of proteins present in an inactive form E) binding of a protein to a surface receptor on the plasma membrane

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Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of reactions which lead to a variety of cellular injuries. Oxidants are derived from several sources, notably phagocytes. Among the effects of oxygen free radicals are membrane lipid peroxidation, DNA strand breaks, cytoskeletal disassembly and inhibition of glucose metabolism leading to decreased cellular ATP concentrations. (Figure 6-16) 187 Which of the following acute-phase protein levels are increased in human plasma following acute inflammation? a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Description : Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of ... a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Last Answer : Answer: a, b, c, d The acute-phase response is a series of homeostatic responses of the organism to tissue injury in infection and inflammation. After an inflammatory stimulus occurs, a number ... 30% to 50% of the level before injury. The reason for the decrease in production is poorly understood

Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of insulin d. are freely permeable to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

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Last Answer : (c) The enzymes of the electron transfer chain are embedded in the outer membrane.

Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. (c) Enzymes of electron transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

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Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.

Explain the association of carbohydrate to the plasma membrane. -Biology

Description : Explain the association of carbohydrate to the plasma membrane. -Biology

Last Answer : hey mate here is your answer... Explanation: ☑️ It forms glycolipids and glycoproteins on the outer surface of plasma membrane. The association functions as recognition centres, antigens, receptors and sites for attachment. Hope it helps!!✌️

What would happen if the plasma membrane were made primarily of a hydrophilic substance such as carbohydrate?

Description : What would happen if the plasma membrane were made primarily of a hydrophilic substance such as carbohydrate?

Last Answer : What is the answer ?

What inside of a membrane bilayer is?

Description : What inside of a membrane bilayer is?

Last Answer : hydrophobic

Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Description : Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Last Answer : It is used in the manufacture of Dacron fibres.

A lipid bilayer is permeable to (A) Urea (B) Fructose (C) Glucose (D) Potassium

Description : A lipid bilayer is permeable to (A) Urea (B) Fructose (C) Glucose (D) Potassium

Last Answer : A

The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is (a) NH3, nucleic acid, protein and carbohydrate (b) protein, carbohydrate, water and nucleic acid (c) NH3, protein, carbohydrate and nucleic acid (d) NH3, water, nucleic acid and protein.

Description : The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is (a) NH3, nucleic acid, protein and carbohydrate (b) protein, carbohydrate, water and nucleic acid (c) NH3, protein, carbohydrate and nucleic acid (d) NH3, water, nucleic acid and protein.

Last Answer : (d) NH3, water, nucleic acid and protein.

Glycogenin is (A) Uncoupler of oxidative phosphorylation (B) Polymer of glycogen molecules (C) Protein primer for glycogen synthesis (D) Intermediate in glycogen breakdown

Description : Glycogenin is (A) Uncoupler of oxidative phosphorylation (B) Polymer of glycogen molecules (C) Protein primer for glycogen synthesis (D) Intermediate in glycogen breakdown

Last Answer : C

Thromboxane A2(TXA2): a. is derived from the membrane phospholipid b. its production is decreased by non-steroidal anti-inflammatory drugs c. causes platelet aggregation d. all above

Description : Thromboxane A2(TXA2): a. is derived from the membrane phospholipid b. its production is decreased by non-steroidal anti-inflammatory drugs c. causes platelet aggregation d. all above

Last Answer : all above

16.3 Actions of growth hormone include the following except: A. Increased protein synthesis B. Increased fat utilization C. Increased carbohydrate utilization D. Glucose intolerance

Description : 16.3 Actions of growth hormone include the following except: A. Increased protein synthesis B. Increased fat utilization C. Increased carbohydrate utilization D. Glucose intolerance

Last Answer : C. Increased carbohydrate utilization

What the polar head of a phospholipid is made of molecules?

Description : What the polar head of a phospholipid is made of molecules?

Last Answer : Phosphate molecules.

The hydrophobic ends of phospholipid molecules are:

Description : 12. The hydrophobic ends of phospholipid molecules are: (a) Polar (b) Non-polar © Neutral (d) Bipolar

Last Answer : Answer: b Non-polar

The movement of glucose into a cell occurs by a. Facilitated diffusion. b. Active transport. c. Simple diffusion. d. Phospholipid exchange.

Description : The movement of glucose into a cell occurs by a. Facilitated diffusion. b. Active transport. c. Simple diffusion. d. Phospholipid exchange.

Last Answer : b. Active transport.

The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion

Description : The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion

Last Answer : Pinocytosis

What characteristic of the plasma membrane allows selective molecules to pass through it?

Description : What characteristic of the plasma membrane allows selective molecules to pass through it?

Last Answer : It is semi-permeable.

What term describes the structure of a cell plasma membrane because of its oily nature and embebbed proteins?

Description : What term describes the structure of a cell plasma membrane because of its oily nature and embebbed proteins?

Last Answer : fluid mosaic

Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. Ion channels are formed by membrane-spanning peptides that are arranged so that polar moieties line a central core c. Ion channel proteins undergo conformational changes between open states and closed states d. Ion channels can be blocked

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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

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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