Plant Tissues

Plant Tissues are stationary or fixed and most of them are dead. Dead cells provide mechanical strength and needs less maintenance. Some plant tissues divide through out the life while others not. So based on their dividing capacity, plant tissues are classified into: Meristematic Tissues and Permanent Tissues.

Plantae

Plants are grouped on the basis of plant body components, presence of specialised tissues, ability to bear seeds, etc. Based on these factors, plants are classified as: Thallophyta Bryophyta Pteridophyta Gymnosperms Angiosperms Thallophyta: They do not have well-differentiated body design. They are predominantly aquatic. The plants of this group are commonly known as “Algae”. Eg:Continue reading “Plantae”

Ch – 6 Tissues (Part 3)

Q.1: ____________ is a solid matrix composed of proteins and sugars. a) Bones b) Plasma c) Cartilage Q.2: Fats are stored in ____________ tissue. a) Adipose b) Adipocyte c) Areolar Q.3: Muscles contain special proteins known as ____________, which contract and relax to cause movement. a) contractile b) myoglobin c) collagen Q.4: The cells havingContinue reading “Ch – 6 Tissues (Part 3)”

Ch – 6 Tissues (Part 2)

Q.1: ____________ issue is present in stems, around vascular bundles, in the veins of leaves and in the hard covering of seeds and nuts. a) Collenchyma b) Aerenchyma c) Sclerenchyma Q.2: The tissues which are made of one type of cells are called ___________________. a) simple permanent tissue b) complex permanent tissue c) none Q.3:Continue reading “Ch – 6 Tissues (Part 2)”

Ch – 6 Tissues (Part 1)

Q.1: The tissues which have the ability to enlarge, stretch and divide into other types of cells are known as ___________ tissues. a) permanent b) meristematic c) both Q.2: A group of cells that are similar in structure and/or work together to achieve a particular function forms a _____________. a) tissue b) organ c) muscleContinue reading “Ch – 6 Tissues (Part 1)”