Home
Class 11
BIOLOGY
Read the following statements and select...

Read the following statements and select the correct option
(i) Blood cells secrete fibres of structural proteins called collagen and elastin
(ii) Neuroglial cells protect and support the nephrons
(iii) Osteocytes are present in spaces called lacunae
(iv) Striated muscle fibres are bundled together in a parallel fashion
(v) Biceps are involuntary and striated.

A

Statements (iii) and (iv) are incorrect

B

Statement (ii) and (iv) are incorrect

C

Statement (i) and (iii) are incorrect

D

Statements (i),(ii) and (v) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
D
The structural proteins collagen and elastin are present in white collagen fibres and yellow elastic fibres respectively, which are connective tissue fibres. Neuroglial cells are specialised cells found in the brain and spinal cord supporting the neurons and their fibres. The muscles of biceps are voluntary and striated.
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the following statement and select the correct option Statement 1 : Cardiac muscle of the heart is striated and has intercalated discs between its fibres (cells) Statement 2 : It provides quick, powerful and rhythmic contractions to the heart.

Read the following statements and select the correct ones. (i) Same kind of sticky ends are produced when a DNA has been cut by different restriction enzymes. (ii) Exonucleases make cuts at specific positions within the DNA. (iii) Hind ll was the first restriction endonuclease to be isolated. (iv) A bacteriophage has the ability to replicate within bacterial cells by integrating its DNA with bacterial DNA. (v) Presence of more than one recognition sites for a enzyme within the vector facilitates the gene cloning.

Read the given statements and select the correct option. (i)Synaptic cleft of neurons secreates adrenaline. (ii)Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. (iii)Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath. (iv)Spinal and cranial nerves are made of non-myelinated nerve fibres.

Read of following statements regarding different types of animal tissues and select the incorrect ones. (i) Each fasciculus (or bundle of muscle fibres) is surrounded by an epithelial tissue covering called perimysium (ii) Multi unit smooth muscles are present in ciliary and iris muscles in the eyes and muscles of the walls of large bloood vessels (iii) Columnar epithelium present in gastric glands, intestinal glands, intestinal glands and pancreatic lubules, has a secretory role and is called as glandular epithelium (iv) Epithelial tissue arises only from the ectoderm of embryo and is usually supplied with blood vessels.

Read the following statements and select the correct ones. (i) Conidia are the asexual propagules restricted to Kingdom Fungi. (ii) Apiece of potato tuber having at least one eye (or node) is capable of giving rise to a new plant. (iii) Ginger propagates vegetatively with the help of its underground roots. (iv) Fleshy buds which take part in vegetative propagation are called bulbilsm present in Dioscorea, Agave, etc.

Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F) (i) The epithelium of proximal convoluted tobule (PCT) of nephron in the kidney has microvilli (ii) Simple epithelium covers the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of salivary glands and of pancreatic ducts (iii) The wall of internal organs such as the blood vessels, stomach and intestine contains skeletal muscle (iv) Bone marrow in some bones is the site of production of blood cells.

Read the following statement (P - T) and select the option that correctly fills (i) - (v) P. The male frog has a special organ on the throat called ul("I") Q. ul("ii") membrane is a part of ear and serves to receive sound waves R. Dermis of the frog contains sac-like ul("iii") glands S. Tongue of frog is ul("iv") T . ul("v") respiration takes place in lungs on land.

Which of the following statements are correct regarding secretion oxyntic cells? (i) It denatures proteins and softens fibrous connective tissues in the blood. (ii) It activates rennin. (iii) It has a role in maturation of RBCs. (iv) It activates trypsin.

Following is the figure of a saggital section of a human brain.Match the labelled parts with the respective statements given below and select the correct option. (i)Consists of fibre tracts that interconnect left and right hemispheres (ii)Secretes a hormone melatonin (iii)Alcohol interferes with the function of this part (iv)Contains centres which control respiration , cardiovascular reflexes and gastric secretions.

Read the following statements carefully. (i) Cancer causing viruses have genes called viral oncogenes. (ii) Malignant tumors remain confined to their original location. (iii) Cancer cells do not exhibit contact inhibition. (iv) X-rays and UV rays are not potent carcinogens. (v) Cancer detection is based on biopsy. Which of the above statements are not correct regarding cancer ?