NEET Test Series-2021/NEET Biology MCQS Mock Test Paper 36 Sample Test,Sample questions

Question:
 A root cap is not found in the root of

1. Stilt root of Pandanus

2. Seminal roots

3.Hanging prop root of Banyan

4.Epiphytic roots

Posted Date:-2021-02-22 06:36:16


Question:
 The characteristic larva in coelenterates is

1.Oncosphere

2.Rhabditiform

3.Planula

4.Cysticercus

Posted Date:-2021-02-22 06:36:16


Question:
A coelenterate that is commonly referred to as ‘fresh water polyp’ is

1. Obelia

2. Physalia

3. Hydra

4.Aurelia

Posted Date:-2021-02-22 06:36:16


Question:
A plant with epidermis specialised to absorb moisture from the air is______.

1. Rhizophora

2.Jussiaea

3.Vanda

4.Avicennia

Posted Date:-2021-02-22 06:36:16


Question:
Aerial absorptive roots occur in

1.Mesophytes

2.Epiphytes

3.Xerophytes

4.Hydrophytes

Posted Date:-2021-02-22 06:36:16


Question:
 A nerve impulse jumps from one __________ to another during saltatory conduction

1.Synapse

2. Axon

3.Node of Ranvier

4. Myelin sheath

Posted Date:-2021-02-22 06:36:16


Question:
 Epiphyllous roots in Begonia and Bryophyllum are

1.Modified leaves

2. Green roots

3. Roots arising from leaves

4.Roots bearing stem

Posted Date:-2021-02-22 06:36:16


Question:
 For the first time, research on nerve cells was carried out on this organism

1. Grasshopper

2.Drosophila melanogaster

3.Octopus

4. Giant squid

Posted Date:-2021-02-22 06:36:16


Question:
 In the event of starvation, after consumption of glycogen and fats, the next nutrient that is to be consumed is

1. starch

2.cellulose

3.proteins

4.adenosine triphosphate

Posted Date:-2021-02-22 06:36:16


Question:
 Individuals with bulimia have a perceived lack of control over their eating pattern and are often reported to _________.

1. Low self-esteem

2.High levels of self-disgust

3. High levels of depression

4.All of the above

Posted Date:-2021-02-22 06:36:16


Question:
 Neurotransmitters can inhibit or excite neurons. _________ for example, is inhibitory whereas __________ is excitatory

1.GABA; glutamate

2.Glutamate; GABA

3. Serotonin; dopamine

4.None of these

Posted Date:-2021-02-22 06:36:16


Question:
 Nissl’s granules are found in

1.Nerve cells

2. WBC

3.RBC

4.Platelets

Posted Date:-2021-02-22 06:36:16


Question:
 The chamber common to all the types of the canal system of sponges is

1.Excurrent canal

2.Radial chamber

3. Incurrent canal

4.Paragastric cavity

Posted Date:-2021-02-22 06:36:16


Question:
 What is the outer covering of the epiphytic root called?

1.Velamen

2.Rhizophore

3.Semaphore

4.Pneumatophore

Posted Date:-2021-02-22 06:36:16


Question:
 Which of these has the highest permeability in a resting nerve cell?

1.Cl-

2.Na+

3.K+

4. I-

Posted Date:-2021-02-22 06:36:16


Question:
 ________ are the neurons carrying impulses away from the central nervous system

1.Efferent nerves

2.Afferent nerves

3.Extensors

4. Sensory nerves

Posted Date:-2021-02-22 06:36:16


Question:
he Body Mass Index(BMI) measure depicts that one can be considered as overweight with a BMI of:

1. 45-59.9

2.25-29.9

3. 20.9-30.9

4. 20.9-30.9

Posted Date:-2021-02-22 06:36:16


Question:
How many children in the middle and low-income areas can be affected by Vitamin A deficiency?

1. 1/2

2. 1/3

3. 1/4

4. 1/8

Posted Date:-2021-02-22 06:36:16


Question:
Identify the correct statement

1.Velamen roots attach to the soil

2. In Cuscuta, velamen roots are present

3. Velamen roots are tap roots

4.Velamen roots are living

Posted Date:-2021-02-22 06:36:16


Question:
In a cell as per the Operon Concept, the regulator gene governs the chemical reactions by 

1.Inhibiting the substrate in the reaction

2. Inhibiting migration of mRNA into cytoplasm

3.mRNA transcription inhibited

4.Enzyme-reaction inactivation

Posted Date:-2021-02-22 06:36:16


Question:
In the presence of lactose, how long does it take for the lac operon to be expressed?

1.when lactose equals glucose concentration

2. when glucose is more than lactose concentration

3. as long as lactose is more than glucose concentration

4.as long as lactose is more than galactose concentration

Posted Date:-2021-02-22 06:36:16


Question:
This is a flagellated larva of Leucosolenia

1. Maggot

2.Kedia

3. Planula

4. Parenchymula

Posted Date:-2021-02-22 06:36:16


Question:
Lac operon is an example of

1. only positive regulation

2.only negative regulation

3.both positive and negative regulation

4.sometimes positive sometimes negative

Posted Date:-2021-02-22 06:36:16


Question:
Lac Operon will be turned on when

1.Lactose is less than glucose

2.Lactose is less in the medium

3. Lactose is more than glucose

4.Glucose is enough in the medium

Posted Date:-2021-02-22 06:36:16


Question:
Oxygen in coelenterates is supplied to different tissues by

1.Plasma

2. Diffuses through integuments

3. Blood pigment

4.Tracheal tubes

Posted Date:-2021-02-22 06:36:16


Question:
Pick the most suitable terminology to designate life cycle of Obelia

1. Metamorphosis

2. Neoteny

3.Metagenesis

4. None of the above

Posted Date:-2021-02-22 06:36:16


Question:
Poriferan evolution from protozoans is evidenced by animals such as

1. Paramecium

2.Euglena

3. Chlamydomonas

4. Proterospongia

Posted Date:-2021-02-22 06:36:16


Question:
Regulation of the lac operon can be envisioned as regulation of enzyme synthesis by its

1. lactose

2.substrate

3. carbohydrates

4.all of the above

Posted Date:-2021-02-22 06:36:16


Question:
The class of coelenterata in which the medusa and polyp both are found in one animal is

1. Anthozoa

2.Hydrozoa

3.Scyphozoa

4.None of the above

Posted Date:-2021-02-22 06:36:16


Question:
The condition wherein there is no enough food in a region to feed people is known as ______.

1. Drought

2.Famine

3. Monsoon

4.Thunderstorm

Posted Date:-2021-02-22 06:36:16


Question:
The lesions to which part of the brain in animal research have been shown to cause appetite loss leading to self-starvation syndrome

1.Amygdala

2.Cerebellum

3. Basal ganglia

4.lateral hypothalamus

Posted Date:-2021-02-22 06:36:16


Question:
The Myelin sheath is derived from the

1. Microglia

2.Neuroglial cells

3.Schwann cells

4. Nerve cells

Posted Date:-2021-02-22 06:36:16


Question:
The presence of epiphytic roots is the characteristic feature of_________

1. Cuscuta, in which haustoria is present

2.Pinus, in which mycorrhizal association is present

3. Orchids, in which velamen tissue is present

4.Jussiaea, in which floating roots are present

Posted Date:-2021-02-22 06:36:16


Question:
The sequence of the structural genes in the lac operon is

1. lacA-lacZ-lacY

2. lacZ-lacY-lacA

3.lacZ-lacA-lacY

4.lacA-lacY-lacZ

Posted Date:-2021-02-22 06:36:16


Question:
This amongst the following is found in muscle cells and nerves

1. membrane potential

2. potassium equilibrium potential

3. resting potential

4. sodium equilibrium potential

Posted Date:-2021-02-22 06:36:16


Question:
This does not belong to Phylum Coelenterata

1. Sea cucumber

2. Sea feather

3.Sea pen

4.Sea fan

Posted Date:-2021-02-22 06:36:16


Question:
This group is commonly known as ‘sea stick’

1.Porifera

2. Coelenterata

3. Arthropoda

4.Echinodermata

Posted Date:-2021-02-22 06:36:16


Question:
This is a characteristic feature of coelenterata

1.Polyp

2. Gastrovascular cavity

3. All are marine

4.Presence of tentacles around mouth

Posted Date:-2021-02-22 06:36:16


Question:
This is a function of velamen

1.transpiration

2.exchange of gases

3.absorption of moisture from air

4.absorption of water from soil

Posted Date:-2021-02-22 06:36:16


Question:
This is a special character of coelenterata occurring only in them

1.Flame cells

2. Hermaphroditism

3.Nematocysts

4.Polymorphism

Posted Date:-2021-02-22 06:36:16


Question:
This neurotransmitter is not a biogenic amine

1. Serotonin

2.Dopamine

3.Norepinephrine

4.Neuropeptides

Posted Date:-2021-02-22 06:36:16


Question:
This phylum shows the presence of nerve cells and absence of nerves

1. Coelenterata

2. Porifera

3.Nemathelminthes

4.Platyhelminthes

Posted Date:-2021-02-22 06:36:16


Question:
This root modification does not store food

1.Napiform

2.Tuberous

3.Stilt

4.Conical

Posted Date:-2021-02-22 06:36:16


Question:
Velamen is a special layer of absorptive tissue, consisting of 4 or 5 layers of long polygonal cells, which are formed by the _________.

1. Stem

2.Absorbing roots

3.Hanging roots

4.Clinging roots

Posted Date:-2021-02-22 06:36:16


Question:
WFP stands for _______.

1.World Food Program

2.Wild Fire Protection

3.Wild Fauna Protection

4.Wild Food Program

Posted Date:-2021-02-22 06:36:16


Question:
What happens when a person goes hungry for a long period of time?

1.They may be more prone to disease

2.They may be stunted in height

3. Affects brain functioning

4.All of these

Posted Date:-2021-02-22 06:36:16


Question:
Which of the following are the result of the droughts, flooding, increased population and unequal distribution of food?

1.Malaria

2. Typhoid

3.Famine

4. Dengue fever

Posted Date:-2021-02-22 06:36:16


Question:
Which of the following is linked with the self-starvation in preventing type anorexia nervosa/binge-eating?

1.Eating only certain food types

2.Not being bothered about weight gain

3.Not eating to help control weight gain

4.Regularly engaging in purging activities to help control weight gain

Posted Date:-2021-02-22 06:36:16


Question:
Which of these acts as an inducer of the lac operon?

1. Allolactose

2. Lactose

3. Galactose

4.Glucose

Posted Date:-2021-02-22 06:36:16


Question:
Which of these is a disease of the myelin sheath?

1.Polio

2. Leprosy

3.Multiple sclerosis

4.Alzheimer

Posted Date:-2021-02-22 06:36:16


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