Structural Organisation in Animals BIOLOGY - Structural Organisation in Animals

Frogs have the ability to change the colour to hide them from their enemies. This protective coloration is called

How many ova are laid by a female frog at a time?

In frog, the duodenum receives bile from gall bladder and pancreatic juices from the pancreas through a

Read the following statements and find out the incorrect statement about frogs.

Male frogs can be distinguished from female frogs by the presence of

Answer in one word or one line:
What is the position of ovaries in cockroach?

Answer in one word or one line:
How many spermathecae are found in earthworm?

Answer the following:
What is the function of nephridia?

Mention the function of the following:
Body wall in earthworm.

Mark the odd one in series:
Maxilla; mandible; labrum; antennae.

Distinguish between:
Dense regular and dense irregular connective tissues.

Distinguish between the followings:
Prostomium and peristomium.

Distinguish between the followings:
Septal nephridium and pharyngeal nephridium.

How will you distinguish between tendons and ligaments?

Describe the features of exoskeleton of cockroach.

Mention breifly about the circulatory system of earthworm.

Answer the following:
How many types of nephridia are found in earthworm based on their location?

Distinguish between:
Cardiac muscle and striated muscle.

Distinguish between:
Simple epithelium and compound epithelium.

Differentiate between blood plasma and serum.

Structure of human body is made up of different type of cells .These cells
predominantly consist of forms two states of matter solid and Liquid with gaseous state
dissolve in its one type of tissue. This all three form of matter in human body form the
basis of human body structure. How beautifully nature has already connected
Chemistry and Biology.
Many famous players like Sachin Tendulkar ,Raffel Nadal,suffered from muscle and
bone detachment problems which also shows the significance of connective tissue for
athletes too.

Based on above paragraph answer the following:
(1). Name the connective tissue present in liquid form in our body.

(2). Which tissue connects bones to muscles is _______

(3). The liquid connective tissue contains no-
(a) Fibre (b)Matrix (c)Cell (d)all the above

(4). Areolar tissue connects _______
(a).Two Bones
(b).Muscle & Bone
(c).Muscle & fat tissue
(d).muscles and their compounds

(5). Tip of the nose and external ears have
(a). Areolar tissue (b).Ligament (c).cartilage (d).bone

Muscles and nerve fibers allow a person to move their body and enable the internal
organs to function. There are more than 600 muscles in the human body. A kind of
elastic tissue makes up each muscle, which consists of thousands, or tens of thousands,
of small muscle fibers. Each fiber comprises many tiny strands called fibrils.
Impulses from nerve cells control the contraction of each muscle fiber. A muscle’s
strength depends mainly on how many fibers are present.

(1). Major protein constituent of muscle fibre is
(a)Actin (b)Tropomyosin (c)Myosin (d)Calnexin

(2).Myofibrils show dark and light band in
(a) cardiac muscle
(b) Striped muscle
(c) cardiac muscle and unstriated muscle
(d) cardiac muscle and striped muscle

(3). Unstriped muscle present in the
(a) Intestinal muscle (b) Leg muscle (c) Muscle of fore limb (d) Heart muscle

(4). Which of the following muscle gets into fatigue very early
(a) Skeletal muscle (b) Smooth muscle (c) Cardiac muscle (d) All the above

(5). The structural and functional unit of the striated muscle fibre is called
(a) Sarcolemma (b) Sarcomere (c) Sarcoplasm (d) Myofibril

Describe various types of epithelial tissues with the help of labelled diagrams.

Draw a labelled diagram of the reproductive organs of an earthworm.

Draw a neat diagram of digestive system of frog.

Match the terms in column I with those in column II:

	Column I		Column II
(a)	Compound epithelium	(i)	Alimentary canal
(b)	Compound eye	(ii)	Cockroach
(c)	Septal nephridia	(iii)	Skin
(d)	Open circulatory system	(iv)	Mosaic vision
(e)	Typhlosole	(v)	Earthworm
(f)	Osteocytes	(vi)	Phallomere
(g)	Genitalia	(vii)	Bone

What are the following and where do you find them in animal body.

1. Chondriocytes.
2. Axons.
3. Ciliated epithelium.