Tutorial 2

Question 1

Besides getting bigger, what are two ways plants change as they grow?

Answer 1

1. Leaf shape and complexity
2. Phyllotaxy

Question 2

What is phyllotaxy?

Answer 2

The pattern in which leaves/branches/flowers/fruit are arranged around the stem.

Question 3

What type of venation is this leaf exhibiting?

Answer 3

Pinnate

Question 4

What type of venation is this leaf exhibitnig?

Answer 4

Parallel

Question 5

What type of venation does this leaf have?

Answer 5

Palmate

Question 6

What type of shape is this leaf?

Answer 6

Linear

Question 7

What shape is this leaf?

Answer 7

Obovate

Question 8

What shape is this leaf?

Answer 8

Ovate

Question 9

What shape is this leaf?

Answer 9

Pinnately lobed

Question 10

What shape is this leaf?

Answer 10

Palmately lobed

Question 11

What shape is this leaf?

Answer 11

Reniform

Question 12

What shape is this leaf?

Answer 12

Lanceolate

Question 13

What shape is this leaf?

Answer 13

Sagittate

Question 14

What arrangement is present?

Answer 14

Simple

Question 15

What arrangement is present?

Answer 15

Palmately compound

Question 16

What arrangement is present?

Answer 16

Pinnately compound

Question 17

What arrangement is present?

Answer 17

Bipinnately compound

Question 18

What margins does this leaf have?

Answer 18

Entire

Question 19

What margins does this leaf have?

Answer 19

Crenate

Question 20

What margins does this leaf have?

Answer 20

Dentate

Question 21

What margins does this leaf have?

Answer 21

Serrate

Question 22

What margins does this leaf have?

Answer 22

Lobed

Question 23

Differentiate between a simple and compound leaf.

Answer 23

Simple leaf has an udivided blade, compound leaf divided into leaflets.

Question 24

How do you differentiate between leaves and leaflets?

Answer 24

Leaf is joined to stem by the petiole. Leaflets joined to midvein of compound leaf by petiolule. Leaflets do not have auxillary buds.

Question 25

What is alternate phyllotaxy?

Answer 25

Nodes producing single leaf and bud on opposite sides of the stem.

Question 26

What is monostichous phyllotaxy?

Answer 26

Leaves all on one side of the stem.

Question 27

What is spiral phyllotaxy?

Answer 27

Nodes producing single bud and leaf at angles less than 180 degrees.

Question 28

What is decussate phyllotaxy?

Answer 28

Leaves arranged opposite at each node, but each pair is oriented 90 degrees to pair at next node.

Question 29

What is whorled phyllotaxy?

Answer 29

3+ leaves or buds at each node.