NCERT Biology mcqs Structural oranization animals

Structural Organization in Animals Mock Test-8

Question No:1

Ureters act as urinogenital ducts in

[A] Human males
[B] Human females
[C] Both male and female frogs
[D] Male frogs



Question No:2

The type of muscle present in our

[A] Heart is involuntary and unstriated smooth muscle
[B] Intestine is striated and involuntary
[C] Thigh is striated and involuntary
[D] Upper arm is smooth muscle and fusiform in shape



Question No:3

One very special feature in the earthworm Pheretima is that:

[A] The typhlosole greatly increases the effective absorption area of the digested food in the intestine
[B] The S-shaped setae embedded in the integument are the defensive weapons used against the enemies
[C] It has a long dorsal tubular heart
[D] Fertilization of eggs occurs inside the body



Question No:4

The ciliated columnar epithelial cells in humans are known to occur in

[A] Bronchioles and fallopian tubes
[B] Bile duct and oesophagus
[C] Fallopian tubes and urethra
[D] Eustachian tube and stomach lining



Question No:5

Which of the following is correctly states as it happen in the common cockroach?

[A] Oxygen is transported by haemoglobin in blood
[B] Nitrogenous excretory product is urea
[C] The food is ground by mandibles and gizzard
[D] Malpighian tubules are excretory organs projecting out from the colon



Question No:6

The supportive skeletal structures in the human external ears and in the nose tip are examples of:

[A] Areolar tissue
[B] Bone
[C] Cartilage
[D] Ligament



Question No:7

Which one of the following characteristics is common both in humans and adult frogs?

[A] Internal fertilization
[B] Nucleated RBCs
[C] Ureotelic mode of excretion
[D] Four – chambered heart



Question No:8

Pheretima and its close relatives derive nourishment from:

[A] Sugarcane roots
[B] Decaying fallen leaves and soil organic matter
[C] Soil insects
[D] Small pieces of fresh of fresh fallen leaves of maize, etc.



Question No:9

Compared to those of humans, the erythrocytes in frog are:

[A] Without nucleus but with haemoglobin
[B] Nucleated and with haemoglobin
[C] Very much smaller and fewer
[D] Nucleated and without haemoglobin



Question No:10

Select the correct statement from the ones given below with respect to Periplaneta americana.

[A] Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives.
[B] Males bear a pair of short thread like anal styles
[C] There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut.
[D] Grinding of food is carried out only by the mouth parts.



Question No:11

What external changes are visible after the last moult of a cockroach nymph?

[A] Mandibles become harder
[B] Anal cerci develop
[C] Both fore wings and hind wings develop
[D] Labium develops



Question No:12

Choose the correctly matched pair:

[A] Tendon – Specialized connective tissue
[B] Adipose tissue – Dense connective tissue
[C] Areolar tissue – Loose connective tissue
[D] Cartilage – Loose connective tissue



Question No:13

Choose the correctly matched pair:

[A] Inner lining of salivary ducts — Ciliated epithelium
[B] Moist surface of buccal cavity – Glandular epithelium
[C] Tubular parts of nephrons – Cuboidal epithelium
[D] Inner surface of bronchioles – Squamous epithelium



Question No:14

The terga, sterna and pleura of cockroach body are joined by:

[A] Cementing glue
[B] Muscular tissue
[C] Arthrodial membrane
[D] Cartilage



Question No:15

The function of the gap junction is to:

[A] Facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
[B] Separate two cells from each other
[C] Stop substance from leaking across a tissue
[D] Performing cementing to keep neighboring cells together.



Question No:16

The body cells in cockroach discharge tier nitrogenous waste in the Heamolymph mainly in the form of:

[A] Potassiumurate
[B] Urea
[C] Calcium carbonate
[D] Ammonia