Basic Biology Mcqs - Set 20

1)   Which of the following statement about fatigue is correct?

a. The major event in it is accumulation of lactic acid.
b. Lactic acid accumulation turns pH in acidic range leading to muscle ache.
c. Ionic imbalance may also cause it.
d. All of these
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


2)   Tetany is caused by__________?

a. Hypocalcemia
b. Hypercalcemia
c. Clostridum tetani
d. Low O2 level
Answer  Explanation 

ANSWER: Hypocalcemia

Explanation:
No explanation is available for this question!


3)   Collagen fibers of bone are hardened by deposition of_____________?

a. Ca & PO4
b. CaCO3
c. CaSO4
d. SiO2
Answer  Explanation 

ANSWER: Ca & PO4

Explanation:
No explanation is available for this question!


4)   Which one of the following is an example of a non-elastic connective tissue?

a. Ligaments
b. Tendon
c. Muscles
d. None of these
Answer  Explanation 

ANSWER: Tendon

Explanation:
No explanation is available for this question!


5)   Which one of the following is avascular structure?

a. A compact bone.
b. A spongy bone.
c. Cartilage
d. All of these
Answer  Explanation 

ANSWER: Cartilage

Explanation:
No explanation is available for this question!


6)   Which of the following muscle is an antagonistic member of Biceps brachii?

a. Bracheoradialis
b. Brachialis
c. Intercostals
d. Triceps
Answer  Explanation 

ANSWER: Triceps

Explanation:
No explanation is available for this question!


7)   Which of the following bone is not present in the hind-limb?

a. Femur
b. Tibia
c. Radius
d. Fibula
Answer  Explanation 

ANSWER: Radius

Explanation:
No explanation is available for this question!


8)   Insertion of Biceps is on_________?

a. Ulna
b. Radius
c. Olecronon process of ulna
d. Scapula
Answer  Explanation 

ANSWER: Radius

Explanation:
No explanation is available for this question!


9)   How many bones are present in the wrist?

a. 4 bones
b. 6 bones
c. 8 bones
d. 14 bones
Answer  Explanation 

ANSWER: 8 bones

Explanation:
No explanation is available for this question!


10)   Which of the following statement is incorrect regarding the locomotion in Euglena?

a. Move with the help of flagellum, attached to the anterior pole of the body.
b. Flagellum whipping backwards moving the organism forward, and when moves forward the organism moves backward.
c. Myonemes can change the direction of the body by making it to shorten from anterior to the posterior pole.
d. None of these
Answer  Explanation 

ANSWER: Flagellum whipping backwards moving the organism forward, and when moves forward the organism moves backward.

Explanation:
No explanation is available for this question!


11)   Which of the following bones bones are present in the plam of hand?

a. Carpals
b. Metacarpals
c. Phalanges
d. Metatarsals
Answer  Explanation 

ANSWER: Metacarpals

Explanation:
No explanation is available for this question!


12)   Which of the following animal uses Setae and Muscles for their Iocomotion?

a. Cockroach
b. Snail
c. Earthworm
d. Star fish
Answer  Explanation 

ANSWER: Earthworm

Explanation:
No explanation is available for this question!


13)   How many vertebrae are present in vertebral column of man?

a. 33 vertebrae
b. 33 pairs of vertebrae
c. 25 vertebrae
d. 31 vertebrae
Answer  Explanation 

ANSWER: 33 vertebrae

Explanation:
No explanation is available for this question!


14)   Which of the following vertebrates have a fish-like body?

a. Reptiles
b. Aves
c. Amphibians
d. Mammals
Answer  Explanation 

ANSWER: Amphibians

Explanation:
No explanation is available for this question!


15)   How many vertebrae are present in coccyx?

a. 7
b. 12
c. 9
d. 4
Answer  Explanation 

ANSWER: 7

Explanation:
No explanation is available for this question!


16)   Which of the following pairs of fins in a fish body are paired?

a. Dorsal and ventral
b. Pectoral and Pelvic
c. Tail and anal
d. All of these
Answer  Explanation 

ANSWER: Pectoral and Pelvic

Explanation:
No explanation is available for this question!


17)   How many vertebrae are present in thoracic region?

a. 7
b. 12
c. 5
d. 4
Answer  Explanation 

ANSWER: 12

Explanation:
No explanation is available for this question!


18)   Among the following organisms which shows the best adaptations for locomotion?

a. Amoeba
b. Earthworm
c. Reptiles
d. Amphibians
Answer  Explanation 

ANSWER: Reptiles

Explanation:
No explanation is available for this question!


19)   How many vertebrae are in sacrum?

a. 7
b. 12
c. 5
d. 4
Answer  Explanation 

ANSWER: 5

Explanation:
No explanation is available for this question!


20)   Which of the following is the swiftest form of the locomotion?

a. Plantigrade
b. Digitigrade
c. Unguligrade
d. Hopping
Answer  Explanation 

ANSWER: Unguligrade

Explanation:
No explanation is available for this question!


21)   S-band locomotion is characteristically seen in___________?

a. Bony fish
b. Cartilaginous fish
c. Fish like mammals
d. All fishes
Answer  Explanation 

ANSWER: Cartilaginous fish

Explanation:
No explanation is available for this question!


22)   How many vertebrae are present in lumbar region?

a. 7
b. 12
c. 5
d. 4
Answer  Explanation 

ANSWER: 5

Explanation:
No explanation is available for this question!


23)   Which of the following bones are present in pectoral girdle?

a. Clavicle
b. Scapula
c. Both of these
d. None of these
Answer  Explanation 

ANSWER: Both of these

Explanation:
No explanation is available for this question!


24)   There are __________ types of nutrients needed by plants besides light to carry out photosynthesis

a. Two
b. Three
c. Four
d. Five
Answer  Explanation 

ANSWER: Three

Explanation:
No explanation is available for this question!


25)   The site/s where most of the uptake of water and minerals take place is/are__________?

a. Root hairs
b. Root cells
c. Underground stem
d. All of these
Answer  Explanation 

ANSWER: Root hairs

Explanation:
No explanation is available for this question!


26)   The uptake of water in plants involves__________?

a. Active transport
b. Passive transport
c. Both of these
d. None of these
Answer  Explanation 

ANSWER: Passive transport

Explanation:
No explanation is available for this question!


27)   The membrane of vacuoles is known as__________?

a. Vacuoloplast
b. Tonoplast
c. Tanoplast
d. All of these
Answer  Explanation 

ANSWER: Tonoplast

Explanation:
No explanation is available for this question!


28)   The diffusion of ions along with water also takes place by mass flow system along the ________ path?

a. Tonoplast
b. Apoplast
c. Symplast
d. Vacuolar
Answer  Explanation 

ANSWER: Apoplast

Explanation:
No explanation is available for this question!


29)   Active transport is dependent on____________?

a. Photosynthesis
b. Respiration
c. Photophosporylation
d. None of these
Answer  Explanation 

ANSWER: Respiration

Explanation:
No explanation is available for this question!


30)   In plants, the neighbouring cells are connected with one another by__________?

a. Plasmodesmata
b. Cell walls
c. Vacuoles
d. Both ‘A’ & ‘B’
Answer  Explanation 

ANSWER: Both ‘A’ & ‘B’

Explanation:
No explanation is available for this question!


31)   In the root cells _______ pathway becomes discontinuous in the endodermis due to the presence of casparian strip.

a. Tonoplast
b. Apoplast
c. Symplast
d. Vacuolar
Answer  Explanation 

ANSWER: Apoplast

Explanation:
No explanation is available for this question!


32)   Cytoplasmic strands that extend through pores in adjacent cell walls are known as___________?

a. Pseudopods
b. Symplasts
c. Plasmodesmata
d. Pili
Answer  Explanation 

ANSWER: Plasmodesmata

Explanation:
No explanation is available for this question!


33)   In plants, water potential is determined by major factors?

a. Three
b. Four
c. Two
d. Five
Answer  Explanation 

ANSWER: Two

Explanation:
No explanation is available for this question!


34)   The pressure generated when water enters & inflates plant cells is called ___________ potential?

a. Water
b. Osmotic
c. Pressure
d. Solute
Answer  Explanation 

ANSWER: Pressure

Explanation:
No explanation is available for this question!


35)   The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane)

a. Deffusion
b. Osmosis
c. Active transport
d. None of these
Answer  Explanation 

ANSWER: Osmosis

Explanation:
No explanation is available for this question!


36)   ___________ potential is the measure of the change in water potential of a system due to the presence of solute molecules?

a. Osmotic
b. Pressure
c. Both of these
d. None of these
Answer  Explanation 

ANSWER: Osmotic

Explanation:
No explanation is available for this question!


37)   ___________ component of cell wall has grreat affinity with water?

a. Lignin
b. Cellulose
c. Pectin
d. All of these
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


38)   Commonly in other plants than tall ones the speed of upward movement of water is____________?

a. 8mh-1
b. 1 mh-1
c. 7 mh-1
d. 4 mh-1
Answer  Explanation 

ANSWER: 1 mh-1

Explanation:
No explanation is available for this question!


39)   Exceptionally the positive hydrostatic pressure generated by root pressure is about___________?

a. 600 Kpa
b. 800 Kpa
c. 1000 Kpa
d. 900 Kpa
Answer  Explanation 

ANSWER: 800 Kpa

Explanation:
No explanation is available for this question!


40)   Cuticular transpiration is _________ of total transpiration?

a. 6-8%
b. 5-7%
c. 7-9%
d. 4-6%
Answer  Explanation 

ANSWER: 5-7%

Explanation:
No explanation is available for this question!


41)   All plants do not possess___________?

a. Lenticels
b. Cuticle
c. Stomata
d. All of these
Answer  Explanation 

ANSWER: Lenticels

Explanation:
No explanation is available for this question!


42)   Lenticular transpiration is ___________ of total transpiration?

a. 2-3%
b. 1-3%
c. 1-4%
d. 1-2%
Answer  Explanation 

ANSWER: 1-2%

Explanation:
No explanation is available for this question!


43)   Introduction of vaccine within the body to produce immunity is an example of____________?

a. Artificially induced active immunity
b. Naturally induced active immunity
c. Artificially induced passive immunity
d. Naturally induced passive immunity
Answer  Explanation 

ANSWER: Artificially induced active immunity

Explanation:
No explanation is available for this question!


44)   The flow of lymph is maintained by__________?

a. Movement of viscera
b. Breathing movements
c. Valves
d. All of these
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


45)   It is the discharge of blood from blood vessels?

a. Myocardial infarction
b. Cerebral infarction
c. Cerebral Hemorrhage
d. Thromboembolism
Answer  Explanation 

ANSWER: Cerebral Hemorrhage

Explanation:
No explanation is available for this question!


46)   All of the follwing are blood clots except:___________?

a. Thrombus
b. Embolus
c. Atheroma
d. Hematoma
Answer  Explanation 

ANSWER: Atheroma

Explanation:
No explanation is available for this question!


47)   It is the measure of force with which blood pushes up against the walls of blood vessels.

a. Stroke volume
b. Cardiac output
c. Blood pressure
d. Blood flow
Answer  Explanation 

ANSWER: Blood pressure

Explanation:
No explanation is available for this question!


48)   Which of the following have thickest walls?

a. Arteries
b. Veins
c. Capillaries
d. None of these
Answer  Explanation 

ANSWER: Arteries

Explanation:
No explanation is available for this question!


49)   QRS complex represents____________?

a. Atrial systole
b. Ventricular systole
c. Atrial diastole
d. Ventricular diastole
Answer  Explanation 

ANSWER: Ventricular systole

Explanation:
No explanation is available for this question!


50)   Tricuspid valve is present_____________?

a. Between right atrium and right ventricle
b. Between left atrium and left ventricle
c. At base of pulmonary artery
d. At base of aorta
Answer  Explanation 

ANSWER: Between right atrium and right ventricle

Explanation:
No explanation is available for this question!