Science Do as directed; [Bio-1 M]

Animals consume more energy as compared to plants as they move around in search of food, mates and shelter.

Lymphocytes are WBCs which are most abundant in lymph.

Tissues with dead cells are more common in plants.

Connective tissues are most abundant and widely distributed in the body of complex animals.

Sclerenchyma is a type of simple permanent tissue which is used for making ropes.

Adipose tissue is also known as fat storing tissue. It is present in hump of camel and blubber of ehale.

Blood is fluid connective tissue which has fibreless matrix.

Epithelial tissue is the simplest animal tissue which composed of one or more layer of cells. This tissue protects the entire animal body.

Areolar tissue is commonly known as packaging tissue. It is basic type of connective tissue present all over in the body.

Collenchyma tissue provides flexibility to plants so that they can easily bend without breaking. It also provides mechanical support to plants.

Sclerenchyma is the main mechanical tissue of the plants. It provides strength to the plants and enables them to withstand various strains.

Squamous epithelium is also called pavement epithelium as it is made up of single thin layer of flattened cells.

Bone cells are embedded in a hard matrix that is composed of calcium and phosphorus compounds.

Columnar epilthelium has pillar-like cells.

Ligament connects two bones together at joints.

Lignin is deposited in the cell wall of sclerenchyma.

Collenchyma tissue is irregularly thickened at the corners due to the depositon of pectin and cellulose.

It is found in the alveoli of lungs and blood vessels.

Meristematic tissues are found in apical, intercalary and lateral positions in plants.

 Parenchyma tissues are the most abundant tissues found in plants.

Tendon is a form of connective tissue.

Tracheid is a conducting element of xylem.

The cells of bones are called osteocytes. Bone cells are embedded in a hard matrix that is composed of calcium and phosphorus compounds.

The main function of parenchyma is to provide support to the plant and also store food.

WBC protects our body against infections.

RBC acts as a transportor of oxygen and carbon dioxide as it contains respiratory pigment called haemoglobin.

Lateral meristem is responsible for growth in grith of stem and root.

Blood platelets help in clooting of blood at the site of injury.

Stomata are tiny pores present on the leave’s surface which help in the exchange of gases and in transpiration.

Synapse is the junction between the terminal part of one axon and the dendrite of the adjacent neuron. Synapses helps in the transmission of impulses from one neuron to another.

A permanent tissue is a group of cells which temporarily or permanently cease to divide have assumed a definite form and size.

The other name of cork cambium is phellogen.

Collenchyma is the simple tissue that provides flexibility to soft aerial plant parts to withstand against winds.

The tissue of a leaf that is found in between upper and lower epidermis is the mesophyll.

Companion cells are found associated with sieve tubes and helps in conduction of food.

Goblet cell is a simple columnar epithelial cell which is modified to secrete mucus. It is seen in the intestine and other parts of the alimentary canal.

Stomata are tiny pores present on the leave’s surface which help in the exchange of gases and in transpiration.

Epiblema is the outermost covering of the root forming by single layer of compactly arranged parenchyma cells.

Division of labour is adaptation of different parts of an organism to carry out different functions.

1. The common name of xylem is wood.
2. The common name of phloem is bast.

Blood platelets occur in human blood. They are minute, colourless, biconvex and non-nucleated blood corpuscles. They help in clotting of blood at the site of injury.

The another name of cork is phellem.

Active movement of animals and sedentary habit of plants contribute more to difference in organ system of plants and animals.

Lignin, a chemical substance is deposited in the secondary wall of sclerenchyma.

Each stomata is surrounded by a pair of guard cells. Guard cells regulate the opening and closing of stomata.

Boutons are the swollen endings of the axon where synapsis with other neurons occur.

4. Living cells, thin-walled, large intercellular spaces.

Explanation:

Parenchyma cells are living and thin walled. They are oval, spherical or polygonal in shape. They have large, intercellular space between the cells.

4. Dendrites, cell body, axon, nerve endings.

Explanation:

Nerve impulse travel along the axons and dentrites. Nerve impulses enter a neuron along the dentrites and leave the neuron along the axon. Thus, the correct sequence through which nerve impulse is transmitted is: dendrites, cell body, axon, nerve endings.

Three types of simple tissues of plants are:

• Parenchyma.
• Collenchymas.
• Selerenchyma.

There are two types of plant tissues- Meristematic and permanent.