Science One word answer.

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

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

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

Bone is a dense connective tissue in which matrix is solid.

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

Cardiac muscle fibre contains intercalated discs.

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

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

When many cells togetherly comes there the tissue forms.

 Parenchyma tissues are the most abundant tissues found in plants.

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

Bronchial muscle.

Lignin is deposited in the cell wall of sclerenchyma.

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

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.

Skeletal muscles are called striated muscles because when we observed this skeletal muscles under the microscope they have a striped like appearance & they also show alternate dark and light striations or bands. They are long or elongated, non tapering and cylindrical, unbranched. They are multinucleated.

Glandular epithelium is a type of epithelial tissue which covers the glands (both exocrine and endocrine) of our body. Coming to their function, Both endocrine and exocrine glands produce their secretions through the glandular epithelium via special cells called goblet cells.

The main components of xylem are:

1. Xylem tracheids,
2. Xylem vessels,
3. Xylem parenchyma,
4. Xylem fibres.

1. Xylem tracheids and xylem vessels are responsible for the conduction of water and minerals because they are elongated tubular channels with wide lumen.
2. Xylem tracheids possesses pits with pores and vessels possess perforated plates through which they are able to conduct water and minerals from one cell to the another.

On the basis of arrangement of layers, epithelial tissue is classified into two types:

• Simple epithelium
• Stratified epithelium.

Skeletal or striated muscle gets fatigued very soon. These are voluntary muscels.

Tissue which is composed of two or more types of cells but contribute to a common function is called complex tissue.

Companion cell is living cell which is attached to the lateral side of sieve tube.

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

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

It is also called tigroid body, found in neurons. it was named after Franz Nissl, German neurologist.
Function:

1. These granules are rough endoplasmic reticulum (with ribosomes) and are the site of protein synthesis.
2. Nissl bodies show changes under various physiological conditions and in pathological conditions they may dissolve and disappear (karyolysis).

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

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

The cells of phloem are called sieve tubes. Sieve tubes are conducting element of phloem which is responsible for transportation of food.

Meristematic tissue is present in plants but absent in animals.

Root nodules: It contain nitrogen fixing bacteria and fixes atmospheric nitrogen in soil.

Respiratory tract and Fallopian duct of women.
Explanation:
Ciliated means hair and the structure which bear hair are made up of ciliated epithelium.

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

Columnar epilthelium has pillar-like cells.

The tissue present in brain is called "NERVOUS TISSUE"

Blood is fluid connective tissue which has fibreless matrix.

Simple tissue is made up of only one type of cells that carry out the same function.

WBC protects our body against infections.

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.

Tissues with dead cells are more common in plants.

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

Sieve tube is multicellular.

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

Stomata: It helps in gaseous exchange between the plant and atmosphere. Transpiration also takes place through stomata.

The root of the iris is the thinnest and most peripheral. The muscle cells of the iris are smooth muscle in mammals and amphibians, but are striated muscle in reptiles (including birds).

Sclerenchyrna fibres are thick walled dead cells while parenchyma cells are thin walled living cells.

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

Smooth muscle is found in the walls of hollow organs throughout the body. Smooth muscle contractions are involuntary movements triggered by impulses that travel through the autonomic nervous system to the smooth muscle tissue. The arrangement of cells within smooth muscle tissue allows for contraction and relaxation with great elasticity. The smooth muscle in the walls of organs like the urinary bladder and the uterus allow those organs to expand and relax as needed. The smooth muscle of the alimentary canal (the digestive tract) facilitates the peristaltic waves that move swallowed food and nutrients. In the eye smooth muscle changes the shape of the lens to bring objects into focus. Artery walls include smooth muscle that relaxes and contracts to move blood through the body.

Functions of Collenchyma:

1. It provides mechanical support and elasticity.
2. It provides tensile strength to the plants.

Three types of simple tissues of plants are:

• Parenchyma.
• Collenchymas.
• Selerenchyma.

In general, xylem tissue is composed of vessel elements and/or tracheids, fibers and parenchyma. In mature, functioning xylem only the parenchyma cells are living.