Board : Gujarat Secondary & Higher Secondary Education Board
Class : 12th
Subject : Biology
Document Type : Question Bank
Location : Gujarat
Website : gseb.org
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/7227-056Biology_English.pdf
GSEB STD 12 Biology Question Paper
Section – A:
Questions 1 to 16 are multiple choice questions carrying one mark each. Choose correct choice from (a) (b) (c) and (d) and write Answer.
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In Thistle funnel experiment what will happen if pressure is applied to solution from upper part of funnel.
(A) Water will rise
(B) Water will come down
(C) Thistle funnel will break
(D) Entry of water stops
What will happen if a cell in which exosmosis has taken place is kept in hypertonic solution:
(A) Plasmolysis
(B) Deplasmolysis
(C) Turgor Pressure
(D) None of these
Which membrane is Hen’s egg membrane ?:
(A) Permeable membrane
(B) Semi permeable membrane
(C) Selective permeable membrane
(D) Impenneable membrane
The collective turgor pressure of all cortical cell is called:
(A) Diflhsion
(C) Root pressure
(B) Osmotic pressure
(D) Absorptive Pressure
What is function of Parchment Paper as membrane:
(A) Imperrneable Membrane
(B) Permeable membrane
(C) Semi permeable membrane
(D) Selective permeable membrane
In Pure water if solute is added, what will be its effect on water potential:
(A) It become Negative
(B)It becomes Positive
(C) It becomes more positive
(D) It becomes more positive.
What is maximum Root pressure noted:
(A) 2 Atmospheric pressure
(B) 4 Atmospheric pressure
(C) 100 Atmospheric pressure
(D)12 Atmospheric pressure
Due to deficiency of which mineral tender leaves change colour yellow to white:
(A) Sulphur
(B) Phosphorus
(C) Magnesium
(D) Nitrogen
For synthetis of IAA which mineral is required:
(A) Iron
(B) Zinc
(C) Magnesium
(D) Phosphorus
For conduction of minerals what is necessary:
(A) Transpiration
(B) Turgor pressure
(C) Root pressure
(D) None of above
Name mineral which is required for synthesis of chlorophyll:
(A) Boron
(B) Manganese
(C) Copper
(D) Iron
Mineral necessary for translocation of sugars:
(A) Boron
(B) Potassium
(C) Zinc
(D) Molybdenum
which mineral is found in more quantity in plants:
(A) Manganese
(B) Carbon
(C) Iron
(D) Nitrogen
Which of following collectively forms Trace elements:
(A) C, Cu, Ca, Co
(B) N, Mg, Fe, Zn.
(C) Co, Ni, Na, Zn
(D) Mn, Fe, B, P
In Kranz Anatomy which cells do not show grana organization in chloroplast:
(A) Xylem Cell
(B) Cells of leaf
(C) Merophyll Cells
(D) Bundle Sheath Cells
In Photosynthesis from which of following oxygen is released:
(A) H20
(B) Glucose
(C) CO2
(C) None of above
During photorespiration what is produce in Peroxisome:
(A) Phosphoglycolate
(B) Glycoxylate
(C) Glycolate
(D) Phosphoglycerate
What is function of cytochrome ?:
(A) Growth
(B) Oxidation of Glucose
(C) Production of Energy
(D) Electron carrier
Which vitamin is responsible for synthesis of Rhodopsin:
(A) Vitamin B
(B) Vitamin C
(C) Vitamin D
(D) Vitamin A