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Class XI Biology
Bioenergetics
Bioenergetics MCQs PDF with Answers | Grade 11 & MDCAT Preparation
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1
The study of energy relationships and conversions in biological systems is called as ____________
2
The mechanism in which energy is released from food and utilized in metabolic processes in the living body is called:
3
The common energy currency of cells is called:
4
The structures in plant body which absorb visible light are called:
5
The important pigments in plant body which absorb visible light are chlorophyll, phycobilin and:
6
The colour of chlorophyll a is:
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The colour of chlorophyll b is:
8
During photosynthesis, the light-gathering part of plant is called:
9
The antenna complex (light-harvesting complex) consists of:
10
In photosynthesis, light energy is transferred from antenna molecules to:
11
The mechanism in which energy is captured and converted into another form and utilized in metabolic processes in the living body is called:
12
The substances in plant body which absorb visible light are called:
13
The most important pigments in plant body, which absorb visible light are phycobilin, chlorophyll and __________:
14
In photosynthesis the light energy is transferred from antenna molecule to:
15
The process in which simple carbohydrates are manufactured from CO2 and H2O is known as:
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In photosynthesis the raw materials are:
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The end products of photosynthesis are:
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The first step of photosynthesis is:
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Photosynthesis take place in:
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The second step of photosynthesis is:
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A photosynthetic cell contains:
22
A chloroplast consists of many flattened sac like structures, called:
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In chloroplast densely packed stacks of thylakoids are found, known as:
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Thylakoids are formed from the:
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Thylakoids unite to form:
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Light reaction is also called:
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After the splitting of water, hydrogen is accepted by:
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Splitting of water takes place in:
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The process of carbon fixation in which CO2 combines with organic molecules is called:
30
The process in which phosphoglyceraldehyde compound is produced by addition of hydrogen is called:
31
The process in which reduced carbon is used to regenerate the carbon acceptor molecule is called:
32
Calvin-Benson cycle is called:
33
The enzyme which is used in Calvin cycle of photosynthesis is called:
34
Alternative mechanism of carbon-fixation dark reaction process of photosynthesis occurs in:
35
The plants in which four carbon compound is formed in dark reaction of photosynthesis are called:
36
The four carbon compound, formed in dark reaction of C4 plants is called:
37
The most common C4 plants are:
38
The mechanism of carbon fixation, in which stomata open only in the night to get CO2 is called:
39
In Cacti and Pine apple __________ mechanism of dark reaction takes place.
40
The Calvin cycle of photosynthesis occurs in the __________ of chloroplasts.
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Dark reaction of photosynthesis was studied by:
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First stable compound of photosynthesis is:
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In dark reaction of photosynthesis CO2 combines with:
44
The initial step of respiration which occurs in the absence of O2 is called:
45
The process of respiration which takes place in the presence of O2 is called:
46
The type of respiration which takes place in the absence of O2 is known as:
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In aerobic respiration __________ energy is released:
48
Glycolysis starts from the compound:
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The end product of glycolysis is:
50
In anaerobic respiration __________ energy is released:
51
Alcoholic fermentation takes place in:
52
In anaerobic respiration the pyruvic acid is changed into:
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Before kreb cycle the pyruvic acid combines with:
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Before kreb cycle the pyruvic acid is converted into:
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In kreb cycle acetyl co-A is changed into:
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The last compound of kreb cycle is:
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In respiration the net gain of ATP compounds is:
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The process of ATP-synthesis is called:
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The link between glycolysis and Kreb cycle is the conversion of pyruvic acid to:
60
The electron transport process in which ATP molecules are formed, takes place in:
61
The stepwise process through which food energy moves with stages of eating and being eaten is called:
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The various stages of food chain are called:
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The diagrammatic representation of trophic levels is called:
64
In the ecosystem the plants are called:
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In an ecosystem the herbivores which feed on producers are called:
66
In the third trophic level, the carnivore organisms which feed upon other living organisms are called:
67
The bacteria and fungi in an ecosystem are considered as:
68
Energy stored in food material by primary producers is called: