Question 1

Which of the following sense organs present in Ascaris are chemoreceptors and are located in ventrolateral lips?

Accepted Answer

The mouth of Ascaris is surrounded by one mid-dorsal and two ventrolateral lips. Two double sensory papillae are present in the dorsal lip and one double sensory papilla in the ventral lip. The ventrolateral lips also have a chemoreceptor called amphid.Thus, the correct answer is option A.

Question 2

Who has developed the concept of phagocytosis in immunity?

Accepted Answer

Elie Metchnikoff won the 1908 Nobel prize in physiology and medicine for the concept of phagocytosis. The process involves the engulfing of the dead cells. So, the correct answer is option D.

Question 3

Pinworm is called

Accepted Answer

Enterobius vermicularis belong to the phylum Aschelminthes (roundworm) and is called pinworm as it is a tiny and narrow worm, also known as threadworm or seatworm. They're white in color and less than a half-inch long.Schistosoma haematobium is commonly called a blood fluke and belongs to the phylum Platyhelminthes.Wuchereria bancrofti is a thread-like filarial nematode. Ancylostoma duodenale is also a nematode and is commonly called an old-world hookworm. Thus, the correct answer is option D.

Question 4

In Nemathelminthes, the coelom not lined by peritoneum is:

Accepted Answer

Animals of the phylum Nemathelminthes are characterized by the presence of pseudocoelom. Such a coelom does not arise from the mesoderm and is not lined by the peritoneum.Enterocoelom is a true coelom that arises by pinching of mesodermally lined pouches. Haemocoel term is used to describe the body cavity of arthropods and molluscs. Blood flows within this cavity and bathes the internal organs of the body. Thus, the correct answer is option B.

Question 5

Tube-within-a-tube body plan is shown by:

Accepted Answer

The animals in the phylum Aschelminthes have a false body cavity also called pseudocoelom. These animals possess a digestive canal with two openings at the end, i.e. mouth at the anterior end and anus at the posterior end. A digestive canal is present in the body cavity and hence, it is called a 'tube within a tube' body plan. Poriferans show cell aggregate plan while Coelenterates and Platyhelminthes show a blind sac body plan. So, the correct option is C.

Question 6

Oncology is the study of

Accepted Answer

Oncology is the branch of science which deals with the prevention, diagnosis and treatment of cancer. Cancer is mainly caused due to the abnormal multiplication of cells.So, the correct answer is option D.

Question 7

Which of the following groups have one or more animals who are not pseudocoelomate?

Accepted Answer

Animals in which the body cavity is not completely lined with mesoderm are called pseudocoelomates. Nematodes (roundworms) and rotifers are pseudocoelomates. Enterobius (roundworm), Wuchereria, Ancylostoma (hookworm), Dracunculus, and Ancylostoma (hookworm) are nematodes with pseudocoelom. Turbellaria and Taenia belong to phylum Platyhelminthes which are triploblastic with a solid body and no body cavity i.e. they are acoelomates. Thus, the correct answer is option A.

Question 8

The excretory pore present in Ascaris  are

Accepted Answer

Ascaris is the nematode worm. They have an H-shaped excretory system. They have a longitudinal excretory canal which leads to an excretory pore. This is the pore that is responsible for the excretion of the wastes. A single excretory pore is located mid-ventrally and a little behind the mouth.Thus, the correct answer is A.

Question 9

The athlete's foot disease in humans is caused due to

Accepted Answer

The athlete's foot is a very common skin condition, that affects the sole of the foot and the skin between the toes. It is usually a scaly, red, itchy eruption.It is caused by a fungus of genera Trichophyton, Epidermophyton, and Microsporum. Thus, the correct answer is option B.

Question 10

HIV infection can be detected through

Accepted Answer

C (ELISA test) is the correct answerELISA test is enzyme linked immunosorbant essay, it is used to detect the HIV antibody. It detects the antibodies that the body makes in response to the virus.

Human Health And Disease

Biology
3003 Views

Which of the following sense organs present in Ascaris are chemoreceptors and are located in ventrolateral lips?

Who has developed the concept of phagocytosis in immunity?

Pinworm is called

In Nemathelminthes, the coelom not lined by peritoneum is:

Tube-within-a-tube body plan is shown by:

Oncology is the study of

Which of the following groups have one or more animals who are not pseudocoelomate?

The excretory pore present in Ascaris are

The athlete's foot disease in humans is caused due to

HIV infection can be detected through

Human Health And Disease

Biology 3003 Views

Which of the following sense organs present in Ascaris are chemoreceptors and are located in ventrolateral lips?

Who has developed the concept of phagocytosis in immunity?

Pinworm is called

In Nemathelminthes, the coelom not lined by peritoneum is:

Tube-within-a-tube body plan is shown by:

Oncology is the study of

Which of the following groups have one or more animals who are not pseudocoelomate?

The excretory pore present in Ascaris are

The athlete's foot disease in humans is caused due to

HIV infection can be detected through

Biology
3003 Views