General
✓✗Which of the following statements about cockroach are correct?
A. The head is formed by fusion of six segments.
B. The forewings arise from the prothorax.
C. There are 10 pairs of spiracles.
D. Malpighian tubules are present at the junction of foregut and midgut.
E. Each compound eye has about 2000 ommatidia.
Choose the correct answer.
A. The head is formed by fusion of six segments.
B. The forewings arise from the prothorax.
C. There are 10 pairs of spiracles.
D. Malpighian tubules are present at the junction of foregut and midgut.
E. Each compound eye has about 2000 ommatidia.
Choose the correct answer.
- A, B and D only
- A, C and E only
- B, C and E only
- A, C, D and E only
General
✓✗Areolar connective tissue joins
- integument with muscles
- bones with bones
- bones with muscles
- fat body with muscles
General
✓✗The lining of the ducts of glands is made up of
- ciliated epithelium
- cuboidal epithelium
- squamous epithelium
- columnar epithelium
General
✓✗Cartilage is present in all of the following in adults except
- tip of the nose
- outer ear joints
- the lining of blood vessels
- between adjacent bones of the vertebral column
General
✓✗The haemolymph of cockroach
- has no respiratory pigment for oxygen transport
- contains haemoglobin in plasma
- contains haemoglobin in red blood cells
- contains haemocyanin in corpuscles
General
✓✗A female cockroach produces on average 9-10 oothecae. Each ootheca contains about
- 1000 eggs
- 14-16 eggs
- 2-4 eggs
- 100-150 eggs
General
✓✗Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Bones support and protect softer tissues and organs.
Reason (R): Bones have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
In the light of the above statements, choose the correct answer from the options given below.
Assertion (A): Bones support and protect softer tissues and organs.
Reason (R): Bones have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
In the light of the above statements, choose the correct answer from the options given below.
- (A) is true but (R) is false.
- (A) is false but (R) is true.
- Both (A) and (R) are true and (R) is the correct explanation of (A).
- Both (A) and (R) are true but (R) is not the correct explanation of (A).
General
✓✗In typical muscles such as the biceps, the fibres are
- branched with intercalated discs
- spindle-shaped
- striated
- non-striated
General
✓✗Frogs live
- only on land
- both in water and on land
- only in water
- only on trees
General
✓✗Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cardiac muscle cells contract as a unit.
Reason (R): Communication junctions at fusion points (intercalated discs) allow neighbouring cardiac cells to be stimulated when one cell receives a signal to contract.
In the light of the above statements, choose the correct answer from the options given below.
Assertion (A): Cardiac muscle cells contract as a unit.
Reason (R): Communication junctions at fusion points (intercalated discs) allow neighbouring cardiac cells to be stimulated when one cell receives a signal to contract.
In the light of the above statements, choose the correct answer from the options given below.
- (A) is true but (R) is false.
- (A) is false but (R) is true.
- Both (A) and (R) are true and (R) is the correct explanation of (A).
- Both (A) and (R) are true but (R) is not the correct explanation of (A).
General
✓✗Given below are two statements.
Statement I: Neuroglia make up less than one-tenth of the volume of neural tissue.
Statement II: Neuroglial cells protect and support neurons.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: Neuroglia make up less than one-tenth of the volume of neural tissue.
Statement II: Neuroglial cells protect and support neurons.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct.
- Both Statement I and Statement II are incorrect.
- Statement I is correct but Statement II is incorrect.
- Statement I is incorrect but Statement II is correct.
General
✓✗Which of the following features is not present in Periplaneta americana?
- Exoskeleton composed of N-acetylglucosamine
- Indeterminate and radial cleavage during embryonic development
- Schizocoelom as body cavity
- Metamerically segmented body
General
✓✗In frog, the special venous connection between the liver and the intestine is the
- renal portal system
- hepatic portal system
- pulmonary system
- coronary system
General
✓✗Which of the following statements is correct about the types of cell junctions and their role in our body?
- Tight junctions perform cementing to keep neighbouring cells together.
- Adhering junctions help cells to communicate with each other.
- Tight junctions help to stop substances from leaking across a tissue.
- Gap junctions create gaps between cells and tissues.
General
✓✗Which one of the following pairs of structures distinguishes a nerve cell from other types of cells?
- Perikaryon and dendrites
- Flagellum and medullary sheath
- Nucleus and mitochondria
- Vacuoles and fibres