Answer key

Prepared by: learnloophq@gmail.com

Last edited 25 days ago by Learn LoopHQ.

Chapter: 01. The Leaf

⁠

Answer Key

Carl Linnaeus is primarily known for developing the Binomial System of biological nomenclature, which is a uniform system for identifying and naming organisms.

Branches extend from the stem and provide support for leaves, flowers, and fruits, increasing the plant’s surface area for photosynthesis and reproduction.

Spines help in the conservation of water by reducing transpiration and protect the plant from grazing animals.

Venation is the arrangement or pattern of veins in the leaf blade or lamina.

During respiration at night, plants take in oxygen and breathe out carbon dioxide through their stomata.

Modified roots and stems that are involved in vegetative propagation also often serve the special function of storing food reserves to help the plant survive adverse conditions.

In a simple leaf, an axillary bud is present in the axil of the entire leaf, whereas in a compound leaf, the axillary bud is present in the axil of the rachis (common stalk), but not in the axil of individual leaflets.

The purpose of boiling the leaf in alcohol is to remove the green chlorophyll pigment, which would otherwise obscure the color change caused by the iodine solution when testing for starch.

The midrib forms the central axis of the lamina and provides structural support to the leaf blade.

An axillary bud is significant because it can grow into a new branch or a flower, contributing to the plant’s overall growth and branching structure.

Vegetative propagation from leaves is a form of asexual reproduction where new plants grow or multiply directly from specialized buds developing along the margins of certain plant leaves.

Bryophyllum is an example of a plant where leaves are modified for vegetative propagation.

Bladderwort is an insectivorous plant whose leaf is modified into a sac-like bladder.

The two main parts of a typical leaf are the petiole (stalk) and the lamina (leaf blade).

Neem is a plant that has compound leaves.

Sundew plants trap their prey using leaves that secrete a sticky, gluey mucilage from glandular hairs, which ensnares insects that land on them.

Transpiration generates a suction force that pulls water and dissolved minerals upwards from the roots through the stem to the leaves.

Plants provide oxygen for breathing and food for consumption, among many other things.

The Great Banyan tree’s immense width is due to its numerous aerial roots that grow downwards, forming secondary trunks, totaling around 230 trunks and 3,772 aerial roots.

The average height of Redwood trees is 300 feet (91 meters).

The primary role of fruits on a plant is to store food and to protect the seeds within them.

The main function of leaves is photosynthesis, which is the process of manufacturing food for the plant.

Peepal is an example of a plant with reticulate venation.

Insectivorous plants catch insects to supplement their nitrogen requirement because they typically grow in nitrogen-deficient soils, even though they can produce their own food through photosynthesis.

Veins and veinlets provide structural support to the leaf lamina and distribute water and minerals throughout the leaf.

Want to print your doc?
This is not the way.

Try clicking the ⋯ next to your doc name or using a keyboard shortcut (

CtrlP

) instead.