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ST ALOYSsiUS

ORPIANAGE AND DAY SCHOOL
UNIT

TEST

SESSION-2022-2023
Subject-Biology

F
...
-50

Class-VI

TIME-IHIR

(1)FILLIN THE BLANKS (5)
(a)Potassium is involved in opening and closing of
(bWater transports substances in the
...
CORRECT THE FALSE STATEMENT (5)
)Wind,

water and animals help in the dispersal
of seeds
(ii Salvia is an example of wind poilinated flowe

ii)Spirogyra reproduces by spore formation
(iv)Xylem parenchyma is a dead cell in Xylem tissue
(vjCell wall is semi-permeable in nature

(4)ANSWERTHE FOLLOWING QUESTIONS BRIEFLY (20)

ijState any 2 functions of xylem tissue?
(i)State 2 functions of a fruit?
(ii)State 1 major role of the following:

(A}Nitrogen (B) Iron
(iv)State 2 features and1 example ofwater pollinated flower?
vState any 2 advantages of tissue culture?
(viState any 2 disadvantages of vegetative propagation?
(vii)Define the following terms:
(A)Transpiration (B) Root pressure

(vii)State 2 examples of thefollowing:
(AJStem tuber (B) Stem (C) Bulb (D) Rhizome
(ixState 2 importance of transpiration?
xDifferentiate between self and cross polination? (2 points)

(5 ANSWER THE
IN DETAILS (15)
(iWhat is artificial pollination? Describe its steps
(i)Discuss about the various factors that affect the rate of transpiration?
(ii)Draw a labelled diagram of a Root hair?

FOLLOWING QUESTIONS

reproduction



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