Entry test 2023 MDCAT contains most of the Biology MCQs. FSC Part 1 bio book MCQs. HSSC Biology questions MCQs. Solved Chapterwise Biology MCQs for first-year 11 class MCQs. Second-year and first-year bio textbooks chapter-wise MCQs with the answer are provided here. PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations
First stable compound during Calvin cycle is:
PMC 2020
Biology
Bioenergetics
Elimination Tool:
The process by which one molecule of Glucose splits up into molecules of Pyruvate is called:
NTS 2018
Biology
Bioenergetics
Elimination Tool:
FADH2 is produced during which step of Krebs cycle?
NUMS 2015
Biology
Bioenergetics
Elimination Tool:
Estimating relative CO2 consumption or O2 release during photosynthesis at different wavelengths of light, is termed as:
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Many substances which are urgently required by the cell while cell absorbs them against the concentration gradient by utilizing energy in the form of:
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Glucose → 2 pyruvic acid + 2H2O
2ADP + 2Pi → 2 ATP
2NAD + 4H → 2NADH + 2H+
These three reactions collectively constitute ______.
NTS 2012
Biology
Bioenergetics
Elimination Tool:
RuBP + O2 —Rubisco—> PGA + _______
NTS 2016 DUHS & JSMU
Biology
Bioenergetics
Elimination Tool:
Visible light used in photosynthesis ranges from:
Pyruvic acid is the end product of:
NTS 2017
Biology
Bioenergetics
Elimination Tool:
During cellular respiration NADH2 produces:
NUMS 2014
Biology
Bioenergetics
Elimination Tool:
1 NADH in respiratory chain produces:
NUMS 2015
Biology
Bioenergetics
Elimination Tool:
Which of the following light is least absorbed by the plants:
Chlorophyll molecule resemble the haem group of hemoglobin, the main difference between these two molecule is that chlorophyll has ____ ion.
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
NADH produces how many ATP?
NUMS 2016
Biology
Bioenergetics
Elimination Tool:
The end product of glycolysis in anaerobic respiration is:
PMC 2020
Biology
Bioenergetics
Elimination Tool:
The light dependent reaction of photosynthesis occurs in:
NTS 2011
Biology
Bioenergetics
Elimination Tool:
How does chemosynthesis differ from photosynthesis?
NUMS 2020
Biology
Bioenergetics
Elimination Tool:
Which component enters into mitochondria after glycolysis?
NUMS 2015
Biology
Bioenergetics
Elimination Tool:
Photosynthesis is process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy.
What is the function of Ribulose?
PMC 2020
Biology
Bioenergetics
Elimination Tool:
The dark reactions of photosynthesis are characterized by:
NTS 2016 DUHS & JSMU
Biology
Bioenergetics
Elimination Tool:
Stroma of chloroplast carries the fixation of:
NUMS 2014
Biology
Bioenergetics
Elimination Tool:
Light reaction takes place on/in
In electron transport chain, ATP synthesis takes place when electrons move from:
PMC 2020
Biology
Bioenergetics
Elimination Tool:
Exposure to ______ light is effective in photosynthesis as it enables guard cells to take up K+ and opening of stomata.
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
FADH2 is produced during which step of the Krebs cycle?
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Photophosphorylation takes place in the _____ of the chloroplasts:
PMC 2020
Biology
Bioenergetics
Elimination Tool:
Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on
Which of the following is a compensation point:
Which is the correct order of energy transfer from assessory pigments to main photosynthetic pigment?
Carbon dioxide joins the photosynthetic pathway at:
NTS 2018
Biology
Bioenergetics
Elimination Tool:
Which part of the cell does glycolysis occur in?
NTS 2018
Biology
Bioenergetics
Elimination Tool:
During the first three steps of glycolysis, glucose is converted to Fructose 1, 6-diphosphate by the rearrangement of the molecule and addition of two phosphate groups. The phosphate comes from?
NTS 2015 SMBBMC
Biology
Bioenergetics
Elimination Tool:
Immediate source of energy for cellular respiration is:
NUMS 2016
Biology
Bioenergetics
Elimination Tool:
Exposure to ______ light is effective in photosynthesis as it enables guard cells to take up K+ and open the stomata.
NUMS 2015
Biology
Bioenergetics
Elimination Tool:
Quantitative study of energy relationships in biological systems obeys.
Chlorophyll is insoluble in:
The inner membrane of mitochondrion has many infoldings into the inner chamber, these folding are called as:
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Estimating relative CO2consumption or O2release during photosynthesis at different wavelengths of light, is termed as:
NUMS 2015
Biology
Bioenergetics
Elimination Tool:
Which of the light is mainly absorbed by the plants:
The point at which there is no net exchange of gases between leaves and atmosphere is known as
In paper chromatography xanthophyll will give ______ color:
NTS 2010
Biology
Bioenergetics
Elimination Tool:
3-Phosphoglycerate in the presence of ATP and reduced NADP (from the light-dependent stage) is reduced to:
NUMS 2020
Biology
Bioenergetics
Elimination Tool:
In the Calvin cycle, the reducing power from NADPH is used during:
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Which of the following statement about the head of a chlorophyll molecule is incorrect:
Where do the light – dependent reactions of photosynthesis occur?
NTS 2016 SMBBMC
Biology
Bioenergetics
Elimination Tool:
Its membranes are the sites where sunlight energy is trapped and where glucose is formed.
Which organelle is this?
NUMS 2014
Biology
Bioenergetics
Elimination Tool:
The organisms able to use sunlight directly as a source of energy are
Dark reaction of photosynthesis takes place in _______ of chloroplast.
NUMS 2020
Biology
Bioenergetics
Elimination Tool:
Net yield of H2O in Photosynthesis is
In the Krebs cycle, substrate-level phosphorylation accompanies the formation of:
NTS 2013
Biology
Bioenergetics
Elimination Tool:
Three word equations are shown:
P. Carbon dioxide + water gives glucose + oxygen
Q. Glucose + oxygen gives carbon dioxide + water
R. Glucose gives alcohol + carbon dioxide
What is / are the equations for anaerobic respiration in yeast?
NTS 2015 SMBBMC
Biology
Bioenergetics
Elimination Tool:
Which of the following is a chemical link between catabolism and anabolism?
The oxidation of PGAL during glycolysis yields ____ molecules.
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
C6H12O6 + 6O2 ? 6CO2 + 6H20 + ENERGY represents:
NAD is an example of ______:
NUMS 2020
Biology
Bioenergetics
Elimination Tool:
Which of the following processes does NOT need Pyruvic Acid as a substrate?
PMC 2020
Biology
Bioenergetics
Elimination Tool:
Molecular formula of chlorophyll ‘a’ molecule is:
The main process that occurs in the dark reaction in photosynthesis is:
NTS 2010
Biology
Bioenergetics
Elimination Tool:
Of the following which one is not an energy releasing process?
At which times there is no net gaseous exchange between leaves and the atmosphere.
The end product of Glycolysis is:
NTS 2011
Biology
Bioenergetics
Elimination Tool:
Which of the following is a copper containing protein in electron transport chain?
PMC 2020
Biology
Bioenergetics
Elimination Tool:
Aerobic respiration results in how much ATP?
NUMS 2016
Biology
Bioenergetics
Elimination Tool:
Lactic Acid Fermentation is a type of anaerobic respiration that occurs in human muscle cells. It yields only ____ % of the energy present in a glucose molecule.
NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:
Which of the following pigment is Blue- green in colour:
Cyanides are potent poisons of the living organism and can kill by inhibiting _____, essential for cellular respiration:
NUMS 2020
Biology
Bioenergetics
Elimination Tool:
