World's only instant tutoring platform
dropdown-logo
Become a tutorPartnershipsAbout usStudent loginTutor login
About us
Login
App StorePlay Store
Get 2 FREE Instant-Explanations on Filo with code FILOAPP
Who proposed the protein-lecithin theory?
Question
Easy
Timing Icon

Solving time: 1 mins

Who proposed the protein-lecithin theory?

A
Sachs

B
Lundegardh

C
Bose and Renner

D
Bennet and Clark

Views

Views: 5,902 students

tutor 0tutor 1tutor 2
Found 4 tutors discussing this question
Levi Discussed
Who proposed the protein-lecithin theory?
5 mins ago
Discuss this question LIVE
5 mins ago

Text SolutionText solutionverified iconVerified

Protein - Lecithin as carrier was proposed by Bennet - Clark, who proposed, that the carrier can be a protein associated with a phosphatide e.g., lecithin, which carries both anions and cations and forms a lecithin ion complex. This moves to the inner side of membrane, releases the ion by hydrolysis forming phosphatidic acid and choline due to the action of the enzyme lectithinase. Lecithin is regenerated with the help of enzymes choline esterase and choline acetylase. This requires expenditure of metabolic energy. So, the correct answer is option D.
Was this solution helpful?
139
Share
Report
One destination for complete JEE/NEET preparation
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
Instant 1:1 help, 24x7
60, 000+ Expert tutors
60, 000+ Expert tutors
Textbook solutions
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Big idea maths, McGraw-Hill Education etc
Essay review
Essay review
Get expert feedback on your essay
Get expert feedback on your essay
Schedule classes
Schedule classes
High dosage tutoring from Dedicated 3 experts
High dosage tutoring from Dedicated 3 experts
Trusted by 4 million+ students

Practice more questions from Transport in Plants

Question 1
Easy
Views

Views: 5,231

In symplast pathway of water movement, water passes from cell to cell, whose cytoplasm are connected through
  1. Plasma membrane
  2. Plasmodesmata
  3. Transmembrane
  4. Plasmalemma
Topic

Topic:

Transport in Plants

View solution

Question 2
Medium
Views

Views: 5,569

Which of the following statement is correct?
  1. Facilitated diffusion cannot cause net transport of molecules from lower to high concentration this would require energy.
  2. For facilitated diffusion require special protein
  3. The porins are proteins that found in the membrane of the plastids , mitochondria and some bacteria allowing in transportation of substances
  4. All are correct
Topic

Topic:

Transport in Plants

View 14 solutions

Question 3
Easy
Views

Views: 5,532

Function of companion cells is
  1. providing energy to sieve elements for active transport.
  2. providing water to phloem.
  3. loading of sucrose into sieve elements by passive transport.
  4. loading of sucrose into sieve elements.
Topic

Topic:

Transport in Plants

Book

Book:

Chapterwise DPP Sheets for Biology NEET (Disha)

View solution

Question 4
Hard
Views

Views: 5,961

Assertion: The more number of solute molecules, the lower (more negative) is water potential.
Reason: The free energy of water is reduced by the presence of solute particles and thus, decreases the water potential.
  1. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  3. If Assertion is true but Reason is false.
  4. If both Assertion and Reason are false.
Topic

Topic:

Transport in Plants

View solution

View more
filo Logo

Practice questions on similar concepts asked by Filo students

Question 1
Views

Views: 5,269

chambers, two relatively small pericardial flu membranous bag. lower chambers called vent upper chambers our heart has four atrial septum separates the righes. A thin, muscular wall called the interthe inter-ventricular septum right and the left atria, whereas a thick-walled, (Figure 18.2). The atrium and separates the left and the right ventricles separated by a thick fibro and the ventricle of the same side are also However, each of these pretition tissue called the atrio-ventricular septum. the two chambers of the same side are covided an opening through which the right atrium and the right ventricle is guarded by a valve formed of
Topic

Topic:

Human Physiology

View solution

Question 2
Views

Views: 5,898

is the branch of science dealing with identification, nomenclature and classification of organisms.
  1. Morphology
  2. Ecology
  3. Anatomy
  4. Taxonomy
Topic

Topic:

Diversity in the Living World

View solution

Question 3
Views

Views: 5,474

Cut end of rb Lung 7.7. Dikerammmatic viex of human respiratory system (sectlonal view of
Topic

Topic:

Human Physiology

View solution

Question 4
Views

Views: 5,364

.24 Read the following statements carefully: (A) Solanum and Brassica are genera of same family. (B) Reproduction can be an all-inclusive defining property of living being. (C) Herbarium, museum and botanical gardens include living plants for reference. (D) Taxonomic keys are generally analytical in nature. (E) The word systematics is derived from Greek word 'Systema'. How many of the given statements is/are incorrect?
  1. Three
  2. Four
  3. Two
  4. One
Topic

Topic:

Diversity in the Living World

View solution

View more
Doubt Icon Doubt Icon

Stuck on the question or explanation?

Connect with our Biology tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Related books for questions on Transport in Plants

next icon
next icon
Question Text
Who proposed the protein-lecithin theory?
TopicTransport in Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes139