ASSET BIO -1

1) Some organisms reproduce sexually while others reproduce asexually. Which of these is usually true for organisms that reproduce asexually and NOT true for organisms that reproduce sexually?

• They never have a nucleus in their cells.

• They are almost exactly like their parents.

• They can only be plants and not animals.

• They grow up to have a large size.

Mitochondria are known as the 'powerhouse' of the cell. Which of the following cells are likely to contain most mitochondria?

• Blood Cells

• Skin Cells

• Muscle Cells

• Stomach cells

When people fall ill, their immune system fights the disease and tries to restore the person to good health. Which disease is known to attack the human immune system leaving the body susceptible to various kinds of infection?

• AIDS

• CHICKEN POX

• TUBERCULOSIS

• PNEUMONIA

''Farm Fresh'' shop in Kolkata advertises that they sell vegetables grown through organic farming methods. What is likely to be special about such vegetables?

• They are available at much cheaper prices.

• They remain fresh for longer periods of time.

• They are genetically modified for better taste

• They are grown without chemical fertilizers

Potatoes are cut into many parts, making sure that each part has at least one eye (bud). Each piece of potato will usually grow into a new potato plant. Will a new potato plant grow, if planted only with the eye?

• Yes, a full new potato plant can grow from it

• Yes, but the new plant will take a slightly longer time to germinate

• No, a new potato plant will not grow because the food needed for germination comes from the potato piece.

• No, a new potato plant will not grow because the leaves emerge only from the potato piece.

Often when we get hurt, we find that a thick, whitish fluid, called pus, develops at the wound. Which of these is a constituent of pus and is formed from our body's mechanism for fighting attacking microorganisms?

• Dead red blood cells

• Dead white blood cells

• Damaged muscle cells

• Escaping body fluid

What happens to the individual molecules in a vegetable when we eat the vegetable?

• Individual molecules are always broken down into their constituent atoms during the digestion process.

• Individual molecules are always completely destroyed during the process of eating and digestion.

• Individual molecules are always unaffected and stay in their original form in our bodies

• Individual molecules may stay unaffected or their atoms may recombine to form different molecules.

Which of the following protects the ANIMAL cell from the outside environment?

• Cell wall

• Plasma membrane

• Nuclear membrane

• Cytoplasm

Which of the following statements about

Spongilla, leech, dolphin and penguin is correct?

• Penguin is homoiothermic while the

  remaining three are poikilothermic.

• Leech is found in fresh water form while

  all others are marine.

• Spongilla has special collar cells called

  choanocytes, not found in the remaining

  three.

• All are bilaterally symmetrical

18)Mary took four pots having the same plants of the same age and applied Fertilizers P and Q in the quantities shown. All the plants were kept undisturbed in similar conditions near each other. The results after a few days are also shown:

Which of these could explain the observations?

• Fertilizer P is more effective for the plant than Fertilizer Q.

• Fertilizer Q is more effective for the plant than Fertilizer P

• In smaller quantities Fertilizer P is more effective; in larger quantities, Fertilizer Q

• In smaller quantities Fertilizer Q is more effective; in larger quantities, Fertilizer P