Category: NEET Biology Objective Questions

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Implantation and Gastrulation Multiple Choice Questions

MCQs on Implantation and Gastrulation :

1. ___________ is formed during gastrulation
(a) gill
(b) vitelline membrane
(c) heart
(d) archenteron

2. Mesoderm gives rise to all the structures except
(a) gonads
(b) circulatory system
(c) nervous system
(d) muscular system

3. The fertilized eggs in human females gets implanted in uterus
(a) after one month of fertilization
(b) after two months of fertilization
(c) after about 7 days of fertilization
(d) after 3 weeks of fertilization

4. Brain, nerve cells and spinal cord or the Central nervous system develops from embryonic
(a) mesoderm
(b) endoderm
(c) ectoderm
(d) both (b) and (c)

5. This list contains only the mesodermal structures
(a) Heart, blood, bones, notochord
(b) heart, blood, muscles, liver
(c) notochord, blood, liver, muscles
(d) liver, heart, bones, blood

6. Implantation is the process of
(a) attachment of blastocyst to the uterine wall
(b) egg movement
(c) degeneration of egg
(d) egg fertilization

7. This embryo has parasitic mode of nutrition
(a) mammalian embryo
(b) bird’s embryo
(c) amphibian embryo
(d) reptilian embryo

8. If the nuclei from an 8-celled stage of an embryo are transplanted into enucleated eggs, which of the following events is likely to take place
(a) recipient egg dies
(b) donor nuclei die in the new environment
(c) cleavage occurs but is arrested after some time
(d) formation of viable embryo in the recipient eggs

9. Egg implantation is followed by
(a) Parturition
(b) Copulation
(c) Fertilization
(d) Gestation

10. Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no
(a) endometrial changes
(b) developing foetus
(c) corpus luteum
(d) developing ovum

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Gymnosperm Multiple Choice Questions

MCQs on Gymnosperm :

1. ‘Saccus’ term is used for
(a) exine of pollen grains of Pinus
(b) intine of pollen grains of Pinus
(c) Wings of pollen grains of Pinus
(d) Wings of seeds of Pinus

2. Flowers and cones are similar because
(a) both assist seed dispersal
(b) both are responsible in attracting insects to pollinate
(c) both are shoy and bright
(d) both are reproductive structures

3. An autotrophic, prokaryotic, nitrogen fixing symbiont is present in
(a) Cicer
(b) Cycas
(c) Sequoia
(d) Pinus

4. Pick the pair that is incorrectly matched
(a) Cycas – coralloid roots
(b) Abies – wood tar, wood gas
(c) Pinus – Mycorrhizal roots
(d) Sequoia – Red wood tree

5. This serves as a connecting link between the angiosperms and gymnosperms
(a) Gnetales
(b) Coniferales
(c) Ginkgoales
(d) Cycadales

6. Though Cycas has an embryo with two cotyledons, it is not grouped under dicotyledonous plants, as:
(a) ovules are naked
(b) possesses compound leaves
(c) has megasporophyll
(d) resembles a palm tree

7. In gymnosperms, the ovules typically are
(a) bitegmic and anatropous
(b) bitegmic and orthotropous
(c) unitegmic and orthotropous
(d) unitegmic and anatropous

8. Tallest known gymnosperm is
(a) Pinus
(b) Ginkgo
(c) Sequoia
(d) Ephedra

9. Inverted omega shaped organization of the vascular bundles is seen in
(a) cycas root
(b) cycas stem
(c) cycas leaflet
(d) ctclas rachis

10. Phanerograms without the ovaries are
(a) angiosperms
(b) pteridophytes
(c) gymnosperms
(d) all the above

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Class Amphibia Multiple Choice Questions

MCQs on Class Amphibia :

1. Dicondylic skull along with ten pairs of cranial nerves is found in
(a) Mammalia
(b) Amphibia
(c) Reptilia
(d) Pisces

2. This about Class Amphibia is correct
(i) fertilization is internal
(ii) respiration is through gills only
(iii) body is divisible into head and trunk
(iv) heart is two chambered – one ventricle and one auricle

(a) only (i)
(b) only (iii)
(c) (i), (ii) and (iv)
(d) all are correct

3. A frog has
(a) jaws but no teeth
(b) eyes but no lids
(c) ears but no pinnae
(d) hands but no fingers

4. Even after attaining sexual maturity, larval characters are retained. It is known as
(a) Phylogenesis
(b) Neoteny
(c) Parthenogenesis
(d) Ontogenesis

5. Frogs dwell in water or in the vicinity of water as
(a) it respires through the skin
(b) it can see through its transparent eyelids whilst swimming
(c) its hindlimbs are webbed, facilitating to swim
(d) water is a good source for food

6. In amphibians, Organ of Jacobson is for
(a) temperature
(b) pressure
(c) smell
(d) sound

7. The differentiating factor of the venous system of frog and rabbit is in the presence of this
(a) hepatic vein
(b) three vena cavae
(c) renal portal system
(d) hepatic portal system

8. Neck is not found in a frog. This absence helps the frog to
(a) swim in water
(b) respire
(c) catch prey
(d) jump on ground

9. The body temperature of a frog is 20 degrees celsius in an environment having a temperature of 30 degrees celsius. The temperature of the frog in the new environment is
(a) 25 degrees celsius
(b) 20 degrees celsius
(c) 30 degrees celsius
(d) between 20-30 degrees celsius

10. This is not a true amphibian animal
(a) Toad
(b) Salamander
(c) Tortoise
(d) Frog

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Volvox Multiple Choice Questions

MCQs on Volvox :

1. Coenobium refers to
(a) a group of filaments
(b) Palmelloid form
(c) A hollow spherical colony
(d) None of these

2. Algae with motile colony is
(a) Nostoc
(b) Spirogyra
(c) Chlamydomonas
(d) Volvox

3. In Chlorophyta, structure for protein and starch reserve is
(a) Pyrenoid
(b) Eye spot
(c) Volutin
(d) Paramylum

4. Volvox and Chlamydomonas are similar because they
(a) belong to Chlorophyta
(b) both are motile
(c) both (a) and (b)
(d) none of the above

5. Volvox belongs to which of the following classes of algae?
(a) Chlorophyceae
(b) Phaeophyceae
(c) Rhodophyceae
(d) Chrysophyceae

6. The chloroplast present in Volvox is
(a) cup-shaped
(b) ribbon-shaped
(c) girdle-shaped
(d) star-shaped

7. Sexual reproduction in Volvox is
(a) Isogamous
(b) Anisogamous
(c) Oogamous
(d) None of the above

8. Find the incorrect match
(a) Laminaria – Flattened leaf like thallus
(b) Volvox – Colonial, non flagellated
(c) Chlorella – Unicellular, non flagellated
(d) Chlamydomonas – Unicellular flagellated

9. The chlorophyll pigment present in Volvox are
(a) Chlorophyll a
(b) Chlorophyll b
(c) Chlorophyll e
(d) both (a) and (b)

10. Find the incorrect statement about Volvox
(a) Sexual reproduction is oogamous
(b) true coelom and no metamerism
(c) somatic cells are non flagellated
(d) phototaxis movement is present

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Endosperm Multiple Choice Questions

MCQs on Endosperm :

1. The primary endosperm nucleus is
(a) tetraploid
(b) triploid
(c) diploid
(d) haploid

2. The white edible part of maize is
(a) pericarp
(b) seed coat
(c) endosperm
(d) seed

3. The polar nuclei and male gamete fuse to form
(a) secondary nucleus
(b) zygote
(c) triple fusion
(d) PEN

4. The outermost proteinaceous layer of maize endosperm is called
(a) pericarp
(b) epidermis
(c) aleurone
(d) tunica

5. Glyoxysomes are present in
(a) root hairs
(b) palisade cells of leaf
(c) endosperm of wheat
(d) endosperm of castor

6. The sunflower embryo has
(a) 3 cotyledons
(b) 2 cotyledons
(c) single cotyledon
(d) cotyledon is absent

7. If the endosperm cell of a dicot plant contains 30 chromosomes, find the number of chromosomes present in the root cells of the plant
(a) 40
(b) 10
(c) 20
(d) 15

8. Which one of the following dicot plant lacks cotyledon
(a) Ranunculus
(b) Cuscuta
(c) Pistia
(d) Dianthus

9. Which of the tissue culture will form a triploid plant
(a) endosperm
(b) pollen
(c) megaspore
(d) ovule

10. In the angiosperms, the endosperm is formed
(a) before fertilization
(b) after fertilization
(c) along with fertilization
(d) None of the above