Science Quiz:

August 16, 2022

Xylem is the specialized tissue of the plants that transports water and nutrients from the soil to the upper parts like stems and leaves of plant and provides mechanical support to them. It is composed of four different types of the cells. Which of the following is not one a type of cell found in xylem tissues?

(A) Tracheids
(B) Vessels
(C) Xylem parenchyma
(D) Sieve tubes

Show Answer

ANSWER: D

While doing work and running, you move your organs like hands, legs, etc. Which among the following is correct?

(A) Smooth muscles contract and pull the ligament to move the bones
(B) Smooth muscles contract and pull the tendons to move the bones
(C) Skeletal muscles contract and pull the ligament to move the bones
(D) Skeletal muscles contract and pull the tendon to move the bones

Show Answer

ANSWER: D

Which is not a function of epidermis?

(A) Protection from adverse condition
(B) Gaseous exchange
(C) Conduction of water
(D) Transpiration

Show Answer

ANSWER: C

Select the incorrect sentence.

(A) Blood has a matrix containing proteins, salts and hormones
(B) Two bones are connected by ligament
(C) Tendons are non-fibrous tissue and fragile
(D) Cartilage is a form of connective tissue

Show Answer

ANSWER: C

A tendon is a fibrous connective tissue that attaches muscle to bone.
Tendons may also attach muscles to structures such as the eyeball.
A tendon serves to move the bone or structure.

Simple epithelium is a tissue, which form the outer protective layer of the skin of the animal body, is composed of cells which are

(A) Hardened and provide support to organs
(B) Continuously diving to provide to form an organ
(C) Cemented directly to one another to form an irregular layer
(D) Loosely connected to one another to form an irregular layer

Show Answer

ANSWER: C

Simple epithelium is made of a single layer of cells. It functions as a lining for ducts, body cavities and tubes. The simple epithelium is of three types –
Squamous epithelium – It is a thin layer of flat cells with irregular boundaries. E.g., Cells lining the walls of blood vessels.
Cuboidal epithelium – It is a mono-layer of cube-like cells. E.g., Cells lining the ducts of glands.
Columnar epithelium – It is a mono-layer of slender, tall cells. E.g., Cells lining the stomach and intestine.

Simple Epithelium	Compound Epithelium
It is a single layer of cells.	It consists of more than one layer of cells.
Its main function is absorption, secretion and diffusion.	Its main function is protection against mechanical and chemical stress.
It is found in the lining of blood vessels, air sacs, stomach, intestine, etc.	It is found in the lining of the skin, pharynx, buccal cavity, etc.

Choose the option that best describes the characteristics of the kingdom to which the mushroom belongs:

(A) Unicellular prokaryotic organisms
(B) Saprophytic, eukaryotic, multicellular organisms
(C) Unicellular eukaryotic organisms
(D) Autotrophic eukaryotic organisms

Show Answer

ANSWER: B

Which of the following statement is incorrect?

(A) Aves are warm blooded, egg laying and have four four-chambered heart.
(B) Aves have feather covered body, fore limbs are modified as wing and breathe through lungs.
(C) Most of the mammals are viviparous.
(D) Fishes, amphibians and reptiles are oviparous

Show Answer

ANSWER: D

In taxonomic hierarchy family comes between

(A) Class and Order
(B) Order and Genus
(C) Genus and Species
(D) Division and Class

Show Answer

ANSWER: B

Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in the discovery of

(A) Electron
(B) Proton
(C) Nucleus in the atom
(D) Atomic mass

Show Answer

ANSWER: D

What prevents an atom from being collapsed?

(A) The nuclear forces
(B) Movement of electrons in discrete energy levels
(C) The electron-electron repulsions
(D) All of the

Show Answer

ANSWER: B