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Flowers in which only one set of essential organs is present are said to be
General Science Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 24 of Quiz-1450 (Que-ID : 3242)
Flowers in which only one set of essential organs is present are said to be
- Polygamous
- Bisexual
- Dioecious
- Unisexual
Ans → (d)Unisexual
Explanation → Unisexual
This question is taken from this post → Morphology of Flowering Plants : Biology (Class 11th) Revision Test | MCQs for NEET - attemp/practice
More MCQs in - Morphology of Flowering Plants : Biology (Class 11th) Revision Test | MCQs for NEET
Q. 1 of Quiz-1450 (Que-ID : 3219)
In tamarind, the pinnate leaf is
- bipinnate
- tripinnate
- paripinnate
- imparipinnate
Q. 2 of Quiz-1450 (Que-ID : 3220)
Artabotrys is a hook climber in which the hooks are modified
- inflorescence axis
- petiole
- roots
- stipules
Q. 3 of Quiz-1450 (Que-ID : 3221)
Exceptional roots of Cuscuta are
- haustorial
- coralloid
- mucorhizal
- all of the above
Q. 4 of Quiz-1450 (Que-ID : 3222)
The petiole is swollen and spongy in
- Nepenthes
- Trapa
- Clematis
- all of the above
Q. 5 of Quiz-1450 (Que-ID : 3223)
Which one of the following plants dose not have root – pockets
- Pistia
- Lemna
- Ficus
- Eichhornia
Q. 6 of Quiz-1450 (Que-ID : 3224)
The largest petal overlaps the lateral ones in _________ aestivation.
- Papilionaceous
- Valvate
- Twisted
- Imbricate
Q. 7 of Quiz-1450 (Que-ID : 3225)
In Lathyrus, the leaves are modified into
- thorns
- cladodes
- tendrils
- spines
Q. 8 of Quiz-1450 (Que-ID : 3226)
Potato tuber is an underground stem because
- Tinospora
- Jussiaea
- Viscum
- Vanda
Q. 9 of Quiz-1450 (Que-ID : 3227)
Thors and spines are
- homologous organs
- analogous organs
- thron is homologous while spine is analogous
- spine is homologous while is analogous
Q. 10 of Quiz-1450 (Que-ID : 3228)
In which of the following plants stems do not store the food materia
- potato
- ginger
- onion
- colocasia
Q. 11 of Quiz-1450 (Que-ID : 3229)
In banana, the stem is
- underground only
- both underground and aerial
- absent
- aerial only
Q. 12 of Quiz-1450 (Que-ID : 3230)
Srem modified to perform the function of a leaf and having many internodes is called as
- phylloclade
- cladode
- offset
- phyllode
Q. 13 of Quiz-1450 (Que-ID : 3231)
certain plants called as runners can be easily propagated. This is due to the fact
- they are numerous in numbers
- they store the ready food
- they lie horizontally on the soil
- they can produce adventitious roots quite readily at the nodes
Q. 14 of Quiz-1450 (Que-ID : 3232)
The coloured part of a Bougainuillea flower is the
- corolla
- calyx
- bracts
- androecium
Q. 15 of Quiz-1450 (Que-ID : 3233)
The axillary buds arise
- endogenously from the pericycle
- exogenously from the tissues of the shoot apex
- endogenously from the cambium tissues
- exogenously from the innermost layers of cortex
Q. 16 of Quiz-1450 (Que-ID : 3234)
The arrangement of sepals or petals in floral bud is called
- Placentation
- Aestivation
- Bracteate
- Phyllotaxy
Q. 17 of Quiz-1450 (Que-ID : 3235)
The term phyllotaxy is used to describe the
- type of ovary in a plant
- mode of arrangement of leaves
- type of roots
- arrangement of sepals and petals
Q. 18 of Quiz-1450 (Que-ID : 3236)
Blue dye is obtained from the leaves of
- Indigofera tinctoria
- Opium
- Aloe
- Delbergia sissoo
Q. 19 of Quiz-1450 (Que-ID : 3237)
Which of the following is a correct pair?
- Cuscuta – parasite
- Dischidia – insectivorous
- Opuntia – predator
- Capsella – hydrophyte
Q. 20 of Quiz-1450 (Que-ID : 3238)
The embryo in sunflower has
- one cotyledon
- two cotyledons
- many cotyledons
- no cotyledon
Q. 21 of Quiz-1450 (Que-ID : 3239)
The aleurone layer in maize grain is especially rich in
- auxins
- proteins
- starch
- lipids
Q. 22 of Quiz-1450 (Que-ID : 3240)
Spinous xerophytic herb belonging to solanceae is
- Solanum tuberosum
- S. nigrum
- S. xanthocarpum
- S. melongena
Q. 23 of Quiz-1450 (Que-ID : 3241)
Dry indehiscent single seeded fruit formed by bi-carpellary syncarpous inferior ovary is
- Cremocarp
- Berry
- Caryopsis
- Cypsela
Q. 24 of Quiz-1450 (Que-ID : 3242)
Flowers in which only one set of essential organs is present are said to be
- Polygamous
- Bisexual
- Dioecious
- Unisexual
Q. 25 of Quiz-1450 (Que-ID : 3243)
Placentation in tomato and lemon is
- Parietal
- Free central
- Marginal
- Axile
More MCQs In - General Science Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 20 of Quiz- (Que-ID : 3013)
Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
Q. 2 of Quiz- (Que-ID : 3045)
Angiosperm pollen is generally released at the
- 1 – celled stage
- 2 – celled stage
- 3 – celled stage
- male gamete formation stage
Q. 14 of Quiz- (Que-ID : 3132)
Choose the correct sequence of water movement in the plants.
- Cortex, protoxylem, endodermis, root hair, pericycle, metaxylem
- Root hair, cortex, endodermis, pericycle, protoxylem, metaxylem
- Root hair, protoxylem, metaxylem, pericycle, cortex, endodermis
- Root hair, pericycle, endodermis, cortex, protoxylem, metaxylem
Q. 25 of Quiz- (Que-ID : 3118)
Analysis of xylem sap shows
- presence of enzymes
- presence of organic matter
- presence of nutrients
- presence of mineral salts
Q. 18 of Quiz- (Que-ID : 2936)
What can be the blood group of offspring when both parents have AB blood group ?
- AB only
- A, B and AB
- A, B, AB and O
- A and B only
Q. 11 of Quiz- (Que-ID : 3404)
The role of DNA ligase in the construction of a recombinant DNA molecule is
- formation of phosphodiester bond between two DNA fragments
- formation of hydrogen bonds between sticky ends of DNA fragments
- ligation of all purine and pyrimidine bases
- none of the above
Q. 7 of Quiz- (Que-ID : 2650)
The part starting from external nostril upto terminal bronchioles is known as
- Conducting part
- Exchange part
- Respiratory part
- None of the above
Q. 1 of Quiz- (Que-ID : 2819)
Which of the following groups is formed only of the hermaphrodite organisms?
- Earthworm, tapeworm, housefly, frog
- Earthworm, tapeworm, seahorse housefly
- Earthworm, leech, sponge, roundworm
- Earthworm, tapeworm, leech, sponge
Q. 17 of Quiz- (Que-ID : 3535)
Common indicator organism of water pollution is
- Lemna pancicostata
- Eichhomia crassipes
- Escherichia coli
- Entamoeba histolytica
Q. 6 of Quiz- (Que-ID : 3074)
Manganese is required in
- Chlorophyll synthesis
- Nucleic acid synthesis
- Plant cell wall formation
- Photolysis of water during photosynthesis
Q. 3 of Quiz- (Que-ID : 3121)
Which of the following is the unit of ψ?
- Pascal
- Joule
- Newton
- Electron volt
Q. 13 of Quiz- (Que-ID : 2656)
Pressure contributed by an individual gas in a mixture of gas is known as
- Partial pressure
- Diffusion pressure
- Osmotic pressure
- None of the above
Q. 2 of Quiz- (Que-ID : 3020)
Intercalary meristems are of
- Permanent nature
- Temporary nature
- Some are permanent some temporary
- None of these
Q. 12 of Quiz- (Que-ID : 3505)
First National park developed in India is
- Gir
- Kaziranga
- Jim Corbett
- None of these
Q. 8 of Quiz- (Que-ID : 2801)
At a neuromuscular junction, synaptic vesicles discharge ______.
- Acetylcholine
- Epinephrine
- Adrenaline
- None of these
Q. 11 of Quiz- (Que-ID : 2879)
RCH stands for
- routine check-up of health
- reproduction cum hygiene
- reversible contraceptive hazards
- reproductive and child health care
Q. 17 of Quiz- (Que-ID : 2710)
Sarcoplasmic reticulum is store house of which ion
- Ca2+
- Mg2+
- Mn2+
- None of the above
Q. 16 of Quiz- (Que-ID : 3409)
Golden rice is a promising transgenic crop. When released for cultivation, it will help in :
- High lysin content
- Pest resistance
- High protien content
- High vitamin A content
Q. 15 of Quiz- (Que-ID : 3358)
MOET stands for
- Multiple Ovulation and Egg transfer Technology
- Multiple Ovary and Embryo Transfer Technology
- Multiple Ovulation Embryo Transfer Technology
- Method of Egg Transfer Technology
Q. 3 of Quiz- (Que-ID : 3146)
Insulin is made up of _______ and _______.
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 4 of Quiz- (Que-ID : 3272)
The seedless vascular plants whose sporophytes are larger than their small and independent gametophytes are
- Pteridophytes
- Angiosperms
- Gymnosperms
- None of these
Q. 1 of Quiz- (Que-ID : 2744)
Which hormones is a stress hormone
- Norepinephrine
- Androgen
- Cortisol
- FSH
Q. 4 of Quiz- (Que-ID : 3047)
Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
- Pyruvic acid decarboxylase
- Alcohol dehydrogenase
- None of these
- Both of these
Q. 2 of Quiz- (Que-ID : 3345)
Which of the following is correctly matched ?
- Sericulture – Fish
- Aquaculture – Mosquito
- Apiculture – Honeybee
- Pisciculture – Silkmoth
Q. 17 of Quiz- (Que-ID : 3310)
Replacement of the lighter-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) in England is the example of
- natural selection
- regeneration
- genetic isolation
- temporal isolation
Q. 13 of Quiz- (Que-ID : 3106)
Which of the following is not a macronutrient
- iron
- calcium
- manganese
- phosphorus
Q. 18 of Quiz- (Que-ID : 2631)
Crypts in between bases of villi in intestine are known as
- Crypts of lieberkuhn
- Crypts of intestine
- Crypts of stomach
- None of the above
Q. 18 of Quiz- (Que-ID : 3086)
Which of the following process (C4 cycle) occurs in bundle sheath cells?
- Regeneration
- Fixation
- Carboxylation
- Decarboxylation
Q. 9 of Quiz- (Que-ID : 3427)
Monoclonal antibodies are obtained from
- One parent for one antigen
- Different parents for one antigen
- One parent for many antigens
- Many parents for many antigens
Q. 24 of Quiz- (Que-ID : 3950)
The introduction of t-DNA into plants involves
- Altering the pH of the soil, then heat shocking the plants
- Exposing the plants to cold for a brief period
- Allowing the plant roots to stand in water
- Infection of the plant by Agrobacterium tumefaciens
Q. 14 of Quiz- (Que-ID : 3282)
In gymnosperms, the development of pollen grains occurs in
- Strobili
- Microsporangia
- Megasporangia
- Macrosporangia
Q. 8 of Quiz- (Que-ID : 3051)
Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Q. 18 of Quiz- (Que-ID : 3136)
When a plant is girdled (ringed)
- the root and shoot die at the same time
- the shoot dies first
- the root dies first
- neither root nor shoot will die
Q. 9 of Quiz- (Que-ID : 2652)
On an average healthy human breathes how many times per minute
- 12-16
- 15-16
- 20-25
- 72
Q. 19 of Quiz- (Que-ID : 2812)
Find the odd one.
- Schwann cells
- Nissl s granules
- nephrons
- synaptic knob
Q. 4 of Quiz- (Que-ID : 2617)
The bile duct and pancreatic duct open together into which region of intestine
- Jejunum
- Ileum
- Duodenum
- Cardiac
Q. 3 of Quiz- (Que-ID : 2996)
Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
- C, A, B, D
- C, B, A, D
- C, D, B, A
- A, C, D, B
Q. 18 of Quiz- (Que-ID : 2836)
The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be
- 20
- 10
- 40
- 15
Q. 16 of Quiz- (Que-ID : 2734)
Classification is not based on
- Thallus organisation
- Cell structure
- Gross morphology
- Phylogenetic relationship
Q. 7 of Quiz- (Que-ID : 3525)
Chlorofluoro carbon are responsible for
- Acid rain
- Ozone layer depletion
- Global warming
- Thermal inversion
Q. 15 of Quiz- (Que-ID : 3008)
Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
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