Match the following entities of column I with their respective orders of column II and choose the correct combination form the option.

Column I	Column II
A. Wheat	1. Primate
B. Mango	2. Diptera
C. Housefly	3. Sapindales
D. Man	4. Poales

• A	B	C	D
  4	3	2	1

• A	B	C	D
  1	2	4	3

• A	B	C	D
  3	4	2	1

• A	B	C	D
  2	4	1	3

Meiosis is best observed in dividing

• Cell of lateral meristem

• Cells of apical meristem

• Microsporocytes

•  Microspores and anther wall

In mitochondria, enzyme cytochrome oxidase is present in

• Outer membrane

• Perimitochondrial space

• Inner Membrane

• Matrix

Which of the following tissues consist of living cells?

• Vessels

• Tracheids

• Companion cell

• Sclerenchyma

Which of the following plant cells is not surrounded by a cell wall?

• Root hair cell

• Stem hair cell

• Gamete cell

• Bacterial cell

246.

Which of the following cell organelles stores hydrolytic enzymes?

• Centriole

• Lysosome

• Chromoplast

• Chloroplast

The thickness of unit membrane is

• 20 A^o

• 35 A^o

• 55 A^o

• 75 A^o

The powerhouse of cells is first discovered by

•  C Benda in 1897

•  Kolliker in 1850

• Claude in 1880

• Kingsburg in 1882

During chloride shift or Hamburger phenomenon, when the whole blood is saturated with CO₂, following changes occurs. Which one of them is not correct?

• Bicarbonate content of plasma and corpuscles increase

• Chloride content of plasma diminished and that of the cell is increased

• Total base of blood remain unchanged

• Water content and volume of corpuscles decrease

The Sub-units of 80S ribosome will be

• 40S, 40S

•  60S, 40S

• 60S, 20S

• 55S, 25S