NEET UG Botany Mock Test 4


45 Questions MCQ Test NEET Mock Test Series & Past Year Papers | NEET UG Botany Mock Test 4


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This mock test of NEET UG Botany Mock Test 4 for NEET helps you for every NEET entrance exam. This contains 45 Multiple Choice Questions for NEET NEET UG Botany Mock Test 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET UG Botany Mock Test 4 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET UG Botany Mock Test 4 exercise for a better result in the exam. You can find other NEET UG Botany Mock Test 4 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

Plant material suited for studying mitosis is

Solution: The suitable Plant material for studying mitosis in plants is root tips of onion.
QUESTION: 2

Who coined the term telomere ?

Solution:
QUESTION: 3

If mitotic division is restricted to G₁ phase of cell, the condition is known as

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QUESTION: 4
Castor oil is obtained from
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QUESTION: 5
A drug which reduces high blood pressure is obtained from
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QUESTION: 6
Biofertilizers are
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QUESTION: 7
Bhojpatra is derived from
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QUESTION: 8
Which one has always a steeper vertical gradient?
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QUESTION: 9
The pyramid of number in grassland ecosystem, is
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QUESTION: 10
Influence of soil on plant behaviour is known as
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QUESTION: 11
Vexillary type of petal arrangement occurs in
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QUESTION: 12
The enzyme responsible for transcription is
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QUESTION: 13
RNA that picks up specfic amino acid from amino acid pool of cytoplasm to carry it to ribosome during protein synthesis is
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QUESTION: 14

Gene and cistron are sometimes used as synonyms because

Solution:

Cistron is generally accepted as a synonym for gene . Gene (Gr. Genos = birth , race) is the basic unit of heredity . It is a sequence of nucleotides on a chromosome that encodes a polypeptide or RNA molecule and so , determines the nature of individual 's inherited traits . Cistron is a segement of DNA that codes for one polypeptide.

QUESTION: 15
Cycas is similar to angiosperms in having -
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QUESTION: 16
Back cross is
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QUESTION: 17
Mendel in his experiments on pea considered
Solution: Being surrounded by other Monks with the same beliefs only strengthened them. Gregor Mendel conducted hybridization experiments on around 29,000 pea plants. Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate.Quality and quantity is two different thing quality - means the variety or the quality of work done.
QUESTION: 18
An allele is dominant if it expresses itself
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QUESTION: 19
A micronutrient is the one which is
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QUESTION: 20
Plants require two metallic compounds (minerals) for chlorophyll synthesis. They are
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QUESTION: 21
Water soluble pigment is
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QUESTION: 22
At which wavelength of light, bacteria carry out photosynthesis
Solution: Maximum photosynthesis are upon red and all photosynthesis are in "visble light". So answer is "far infrared". 
QUESTION: 23
Downward movement of organic and inorganic solutes from leaves occurs through
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QUESTION: 24
The correct sequence of taxonomic categories is
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QUESTION: 25

How many sub-groups are divided in plant by Eichler ?

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QUESTION: 26
Which one prevents photo-oxidation and pigment destruction?
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QUESTION: 27

Response of different organisms to environmental rhythms of light and darkness is

Solution:

Photoperiodism is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods.

QUESTION: 28
Which one of the following substances plays an important role in biochemical defence of host plants?
Solution:
QUESTION: 29

In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?

Solution:
QUESTION: 30
Example of positive geotropism is
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QUESTION: 31
Collenchyma occurs in the stem and petioles of
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QUESTION: 32
Increase in the concentration of pollutants in higher trophic levels is called
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QUESTION: 33
Occurrence of water blooms in a lake indicates
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QUESTION: 34
Double fertilization process means
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QUESTION: 35
Pollen tube moves down through style
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QUESTION: 36
Maturation of stigma and anthers at different times in the same flower is
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QUESTION: 37

Which is worng about cytochrome P-450 ?

Solution:

Cytochromes P4​50  are proteins of the superfamily containing heme as a cofactor and, therefore, are hemeproteins. CYPs use a variety of small and large molecules as substrates in enzymatic reactions. They are, in general, the terminal oxidase enzymes in electron transfer chains, broadly categorized as P450-containing systems. The term "P4​50" is derived from the spectrophotometric peak at the wavelength of the absorption maximum of the enzyme (450 nm) when it is in the reduced state and complexed with carbon monoxide. Most CYPs require a protein partner to deliver one or more electrons to reduce the iron (and eventually molecular oxygen). Depending on the substrate and enzyme involved, P4​50 enzymes can catalyze any of a wide variety of reactions. A hypothetical hydroxylation is shown in this illustration. After the product has been released from the active site, the enzyme returns to its original state, with a water molecule returning to occupy the distal coordination position of the iron nucleus. 

So the correct option is 'it is a coloured cell'.

QUESTION: 38
Carbon dioxide is liberated during
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QUESTION: 39
Hook climbers occur in
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QUESTION: 40
Which of the following is used to prepare a milk like peraration-
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QUESTION: 41
DPD is abbreviated form of
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QUESTION: 42
Osmosis involves
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QUESTION: 43
Turgor pressure becomes equal to the wall pressure when
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QUESTION: 44
Stilt roots occur in
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QUESTION: 45
Respiratory substrate yielding maximum number of ATP molecules is
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