AP BIOLOGY

PLANTS

PLANT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a hair-like appendage for protection, secretion, and others?
A
Thorns
B
Trichomes
C
Sclereids
D
Fibers
Explanation: 

Detailed explanation-1: -So, the correct option is ‘Trichomes’.

Detailed explanation-2: -Trichome is the hair like structure found on the epidermis of the leaves and stem. They are mainly found in plants, algae, lichens, and certain protists. For example, hairs, glandular hairs, scales, and papillae.

Detailed explanation-3: -There are several types of epidermal appendages which are referred to as trichomes. Trichomes are also known as epidermal hairs, which is self-explanatory. These appendages are found on the surfaces of parts that are exposed to the air.

Detailed explanation-4: -Broadly, trichomes can be classified into glandular (presence of glandular head) and non-glandular (absence of glandular head) (Werker 2000). Both glandular (Tang et al. 2020) and non-glandular (Karabourniotis et al.

Detailed explanation-5: -Root hairs are an elongation of the epidermis from the roots, whereas stem hairs are multicellular structures that are distributed throughout the shoot. Stem hairs are sometimes called trichomes.

There is 1 question to complete.