---

Lysosome arises from

mitochondrianucleusgolgi apparatusendoplasmic reticulum

---

Living cells were discovered by

Robert BrownLeeuwenhoekPurkinjeRobert Hooke

---

Select the odd one out

Plasma membranes contain chitin sugar in plants.Molecules soluble in organic solvents can easily pass through the membrane.Membranes are made of organic molecules like proteins and lipids.The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.

---

Cork cells are made impervious to water and gases by the presence of

ligninsuberinlipidscellulose

---

Survival of plants in terrestrial environment has been made possible by the presence of

parenchymatous tissueapical meristemconducting tissueintercalary meristem

---

Choose the wrong statement

Cells of striated muscles are multinucleate and unbranchedEpithelial tissues have intercellular spaces between themFats are stored below the skin and in between the internal organsThe nature of matrix differs according to the function of the tissue

---

The water conducting tissue generally present in gymnosperm is

xylem fibrestracheidssieve tubevessels

---

Animal husbandry is the scientific management of
(i) animal breeding
(ii) culture of animals
(iii) animal livestock
(iv) rearing of animals

(i), (iii) and (iv)(i), (ii) and (iv)(ii), (iii) and (iv)(i), (ii) and (iii)

---

Which one of the following nutrients is not available in fertilizers?

PotassiumIronPhosphorusNitrogen

---

Preventive and control measures adopted for the storage of grains include

all of the abovefumigationproper disjoiningstrict cleaning

---

Which of the following figures represents uniform motion of a moving object correctly?

---

Two identical bullets are fired, one by a light rifle and another by a heavy rifle, with the same force. Which rifle will hurt the shoulder more?

Neither rifle will hurt the shoulder.Both rifles will hurt the shoulder equally.The heavy rifle will hurt the shoulder more.The light rifle will hurt the shoulder more.

---

A girl stands on a box having 60 cm length, 40 cm breadth and 20 cm width in three ways. In which of the following cases, pressure exerted by the brick will be

the same in all the above three casesmaximum when width and length form the basemaximum when breadth and width form the basemaximum when length and breadth form the base

---

An apple falls from a tree because of gravitational attraction between the earth and apple. If F₁ is the magnitude of force exerted by the earth on the apple and F₂ is the magnitude of force exerted by apple on earth, then

F₁ and F₂ are equalF₁ is only a little greater than F₂F₂ is very much greater than F₁F₁ is very much greater than F₂

---

A body is falling from a height h. After it has fallen a height h/2 , it will possess

more kinetic and less potential energyhalf potential and half kinetic energyonly kinetic energyonly potential energy

---

Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the string suitably. By doing so, he is adjusting

loudness of soundfrequency of the sitar string with the frequency of other musical instrumentsamplitude of sound onlyintensity of sound only