The Leaf Flashcards

1
Q

which bud develeops into a branch

A

axillary bud

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2
Q

what is arrangement of leaves called

A

acropetal

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3
Q

most important vegetative organs for photosynthesis

A

leaves

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4
Q

three main parts of leaf

A

leaf base
petiole
lamina

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5
Q

which part of leaf is attached to stem

A

leaf base

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6
Q

leaf base may bear two lateral small leaf like structures called

A

stipules

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7
Q

in which types of plants does the leaf base expand into a sheath covering the stem partially or wholly

A

monocotyledons

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8
Q

in which plants does the leaf base become swollen

A

leguminous plants

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9
Q

the swollen part is called

A

pulvinus

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10
Q

lamina is also called

A

leaf blade

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11
Q

middle prominent vein in lamina

A

midrib

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12
Q

what do veins in lamina do

A

provide rigidity to leaf blade
act as channels of transport for water, minerals and food materials

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13
Q

arrangement of veins and veinlets in lamina of leaf is called

A

venation

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14
Q

two types of venation

A

reticulate
parallel

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15
Q

when veinlets form a network, venation is of what type

A

reticulate

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16
Q

when veins run parallel to each other within a lamina, venation is of what type

A

parallel

17
Q

which plants usually possess reticulate venation

A

dicots

18
Q

which plants usually possess parallel venation

A

monocots

19
Q

two types of leaves

A

simple
compound

20
Q

when is a leaf said to be simple

A

lamina is entire or if incisions are present, they do not reach midrib

21
Q

when is a leaf said to be compound

A

when incisions of lamina reach the midrib, breaking the lamina into leaflets

22
Q

is axillary bud present in axil of leaflets

A

no

23
Q

two types of compound leaves

A

pinnately compound
palmately compound

24
Q

in which type of compound leaves are the leaflets present on a common axis

A

pinnately compound

25
Q

the common axis for leaflets in pinnately compound leaf is known as

A

rachis

26
Q

example of a pinnately compound leaf

A

neem

27
Q

in which type of compound leaf are the leaflets attaches at a common point
also which point is that

A

palmately compound
tip of petiole

28
Q

example of a palmately compound leaf

A

silk cotton

29
Q

what is phyllotaxy

A

pattern of arrangement of leaves on stem or branch

30
Q

three types of phyllotaxy

A

alternate
opposite
whorled

31
Q

examples of alternate phyllotaxy

A

china rose
mustard
sunflower

32
Q

examples of opposite phyllotaxy

A

calotropis
guava

33
Q

example of whorled phyllotaxy

A

alstonia