Casparian strips are present in the _____________ of the root.

(a)

cortex

(b)

pith

(c)

pericycle

(d)

endodermis

The xylem and phloem arranged side by side on same radius is called _________

(a)

radial

(b)

amphivasal

(c)

conjoint

(d)

None of these

Oxygen is produced at what point during photosynthesis ?

(a)

when ATP is converted to ADP

(b)

when CO₂ is fixed

(c)

when H₂O is splitted

(d)

All of these

Leucoplasts are __________ plastids.

(a)

colourless

(b)

yellow

(c)

orange

(d)

red