Leaves

Question 1

What is one of the main functions of leaves?

Answer 1

Photosynthesis

Question 2

What is transpiration in the context of leaves?

Answer 2

The process of water vapor exiting the leaf through small openings called stomata.

Question 3

What is gas exchange in leaves?

Answer 3

The process of exchanging gases, such as oxygen and carbon dioxide, between the leaf and the environment.

Question 4

What is one of the functions of leaves related to storage?

Answer 4

Storage of water in certain plants.

Question 5

What adaptation do succulents have in their leaves?

Answer 5

Thick, fleshy leaves adapted to store water, enabling them to survive in arid environments.

Question 6

Blade (Lamina)

Answer 6

broad, flat part of the
leaf responsible for capturing sunlight and conducting photosynthesis.

Question 7

Petiole

Answer 7

The stalk that connects the leaf
blade to the stem.

Question 8

Midrib

Answer 8

The central vein that runs down the middle of the leaf, providing structural support.

Question 9

Veins

Answer 9

A network of smaller vascular bundles that branch out from the midrib.

Question 10

Veins function

Answer 10

provide structural support and are involved in the transport of water and nutrients into the
leaf and the movement of sugars produced during photosynthesis.

Question 11

Stipules

Answer 11

leaf-like structures found at the base of the petiole. They can protect the developing leaf or stem, and help in photosynthesis.

Question 12

Stomata

Answer 12

Small pores located mostly on
the underside of the leaf

Question 13

Stomata controls what?

Answer 13

Gas exchange

Question 14

Cuticle

Answer 14

A waxy, protective layer on the surface of the leaf that reduces water loss.

Question 15

Mesophyll

Answer 15

The inner tissue of the leaf

Question 16

Two layers of mesophyll

Answer 16

Palisade mesophyll and Spongy mesophyll

Question 17

Palisade Mesophyll

Answer 17

The upper layer of tightly packed cells where most of the photosynthesis occurs.

Question 18

Spongy Mesophyll

Answer 18

The lower layer, with loosely arranged cells and air spaces, allowing for gas exchange.

Question 19

Leaf venation

Answer 19

refers to the arrangement of veins in a leaf.

Question 20

Reticulate Venation

Answer 20

prominent central vein where it forms a network or web-like. structure. Common in dicot plants

Question 21

Parallel venation

Answer 21

when veins run parallel to each other from the base to the tip of the leaf

Question 22

Phyllotaxy

Answer 22

refers to the arrangement of leaves on the stem or branch of a plant.

Question 23

Alternate Phyllotaxy

Answer 23

A single leaf grows at each node, alternately arranged on opposite sides of the stem.

Question 24

Opposite Phyllotaxy

Answer 24

Two leaves grow opposite to each other at the same node.

Question 25

Whorled Phyllotaxy

Answer 25

More than two leaves grow in a circular arrangement at a single node.

Question 26

Spines

Answer 26

These are modified leaves that provide protection against herbivores and reduce water loss.

Question 27

Bulb Scales

Answer 27

are underground storage organs made of modified leaves, typically used to store food and energy.

Question 28

Bracts

Answer 28

These are modified leaves that are often colorful and can help attract pollinators to flowers

Question 29

Insectivorous Leaves (Carnivorous)

Answer 29

modified leaves that captures insects and small organisms to supplement the plant’s nutrient intake.

Question 30

Storage leaves

Answer 30

are leaves that are modified to store
water,nutrients, or
carbohydrates.

Question 31

Phyllodes

Answer 31

These are flattened leaf-like structures that perform photosynthesis while the true leaves are modified or
reduced.