Muscle tissue cells are contractile, which means they
are responsible for the production and secretion of enzymes.
are specialized in contraction and relaxation.
help in the movement of involuntary organs only.
all of the above
Correct Answer :
B. are specialized in contraction and relaxation.
Muscle tissue plays the vital role of providing movement and heat generation to the organs of the body. Muscle cells are specialized for contractility and electrical conductivity.
Related Questions
When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
connective tissue cells
new smooth muscle cells
new cardiac muscle cells
epithelial cells
Identify the figure with its correct function Fig :. Adipose connective tissue
Areolar connective tissue Serves as a support framework for epithelium.
Adipose tissue Store fats and act as heat insulators.
Dense regular tissue Provide flexibility.
Dense irregular tissue Provide strength and elasticity.
Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following.
Which of the cells are least likely to be replaced by new cells?
Liver cells
Neurons
Malpighian layer of the skin
Osteocytes
In all connective tissues, except which of the following, the cells secretes the fibres of collagen or elastin protein ?
Bone
Cartilage
Areolar connective tissue
Fluid connective tissue
Match column-I with column-II and choose the correct option.
| Column-I | Column-II |
|---|---|
| A. Periplaneta | I. Hepatic caecae americana |
| B. A ring of 6-8 blind | II. Phylum arthropoda tubules |
| C. Vascular system | III. Spiracles |
| D. 10 pairs of small | IV. Malpighian tubules holes |
| E. Excretion | V. Open type |
A I; B II; C III; D IV; E V
A II; B I; C V; D III; E IV
A II; B I; C III; D V; E IV
A III; B IV; C II; D V; E I
Which of the following statement(s) is/are correct regarding cockroaches ?
- The body of the cockroach is segmented and divisible into three distinct regions head, thorax and abdomen.
- Blood vascular system is of closed type.
- They are monoecious and both sexes have well developed reproductive organs.
- The development of P. americana is paurometabolus, meaning there is development through nymphal stage.
Both (i) and (ii)
Both (ii) and (iii)
Both (i) and (iv)
All of these
Match the types of connective tissue given in column-I with their examples given column-II and choose the correct option.
| Column-I | Column-II |
|---|---|
| (Types of connective) | (Examples) |
| A. Loose connective | I. Tendons and ligaments tissue |
| B. Dense regular | II. Skin tissue |
| C. Dense irregular | III. Cartilage, bones, blood tissue |
| D. Specialized | IV. Fibroblasts, macrophages connective tissue and mast cells |
A I; B IV; C II; D III
A I; B IV; C III; D II
A IV; B I; C II; D III
A IV; B II; C I; D III
Which of the following statement(s) regarding cell junctions is/are correct ?
Tight junctions help to stop substances from leaking across a tissue.
Adhering junctions perform cementing to keep neighbouring cells together.
Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small molecules and sometimes big molecules.
All of the above
The secretions of endocrine glands are released directly
into the skin surface
into the blood stream
into a gland duct
into the brain tissue
Muscle tissue cells are contractile, which means they
are responsible for the production and secretion of enzymes.
are specialized in contraction and relaxation.
help in the movement of involuntary organs only.
all of the above
In the given diagram of areolar connective tissue, the different cells and parts have been marked by alphabets (A, B, C & D). Choose the answer in which these alphabets correctly match with the parts and cells they indicate.
A-Adipocyte, B-Collagen fibres, C-Microfilament, D-Mast cells
A-Macrophage, B-Collagen fibres, C-Microfilament, D-Mast cells
A-Macrophage, B-Collagen fibres, C-Microtubule, D-RBC
A-Macrophage, B-Fibroblast, C-Collagen fibres, D-Mast cells
Which of the following statement is incorrect regarding cuboidal epithelium ?
It is an epithelial tissue.
It is composed of a single layer of cube-like cells.
They are found in the walls of blood vessels and air sacs of lungs.
Secretion and absorption are the main functions of these tissue.
Which of the following statements is not correct regarding neural tissue ?
It exerts the greatest control over the bodys responsiveness to changing conditions.
Chondrocytes, the unit of neural system are excitable cells.
Neuroglial cells protect and support neurons.
When a neuron is suitably stimulated, an electrical disturbance is generated.
Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
reptilia; annelida
insecta; arthropoda
insecta; annelida
reptilia; arthropoda
Which of the following statement(s) is/are correct about nervous system of cockroach ?
- It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
- There are six ganglia lie in the thorax, and three in the abdomen.
- The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
- Each eye consists of about 5000 hexagonal ommatidia.
Both (i) and (iii)
Only (ii)
Both (i) and (iv)
All of these
Match the epithetial tissue given in column-I with its location given in column-II and choose the correct option.
| Column I | Column II |
|---|---|
| (Epithelial tissue) | (Location) |
| A. Cuboidal | I. Epidermis of skin |
| B. Ciliated | II. Inner lining of blood vessels |
| C. Columnar | III. Inner surface of gall bladder |
| D. Squamous | IV. Inner lining of fallopian tube |
| E. Keratinized | V. Lining of pancreatic duct squamous |
A V; B IV; C II; D III; E I
A III; B IV; C V; D II; E I
A V; B IV; C III; D II; E I
A III; B IV; C V; D I; E II
Read the following statements and answer the question.
- It is made of a single thin layer of flattened cells with irregular boundaries.
- They are found in the walls of blood vessels and air sacs of lungs.
- They are involved in functions like forming a diffusion boundary.
Which of the following characteristics of tissue is being described by the above statements ?
Squamous epithelium
Columnar epithelium
Ciliated epithelium
Compound epithelium
General function of gland is to
protect the body.
control the function of epithelial tissues.
produce and secrete specialized compounds to control and maintain different body functions.
help to maintain blood pressure and nerve actions.
Select the correct statement regarding Periplaneta americana
There are 16 very long malpighian tubules present at the junctions of midgut and hindgut.
Grinding of food is carried out only by the mouth parts.
Nervous system is located ventrally and consists of segmentally arranged ganglia joined by a pair of longitudinal connectives.
Females bear a pair of short thread like anal styles.
Epithelial tissue is distinguished from connective tissue, muscular, or nervous tissue by its
large extracellular matrix.
contractibility.
ability to carry action potentials.
basement membrane.
The only type of cell seen in a tendon is
muscle fibres
reticular cells
collagenous cells
fibroblasts
The chondrocytes of connective tissue are
fibre secreting cells
bone forming cells
cartilage cells
bone eating cells
The diagram given below represents the reproductive organ of male cockroach. Choose the correct labelling of the part of marked as A, B, C and D.
A 8th sternum, B - Anal cercus, C - 10th tergum, D - Anal style
A - 10th tergum, B - Anal cercus, C - Anal style, D - 8th sternum
A - Anal style, B - Anal cercus, C - 10th tergum, D- 8th sternum
A - Anal cercus, B - 8th sternum, C - 10th tergum, D - Anal style.
Male cockroach can be identified from the female by the presence of
long antennae
wingless body
elongated abdomen
anal styles
Which of the following animal's sensory system does not has eyes but does possess light and touch sensitive organs (receptor cells) to distinguish the light intensities and to feel the vibrations in the ground?
Frog
Snake
Earthworm
Cockroach
Refer the given figure of female reproductive system of cockroach and identify the correct labels (marked as 1, 2, 3 and 4) which are collectively called genital pouch.
1 & 2
1 & 3
2 & 4
3 & 4
A student was given a sample of two tissues. He observes the tissues under the microscope and draws their figures (1 and 2) as shown below.
Identify the tissues (1 and 2).
1: Columnar cells bearing cilia; 2: Unicellular glandular epithelium
1: Cuboidal cells bearing cilia; 2: Multicellular glandular epithelium
1: Compound cells bearing cilia; 2: Unicellular glandular epithelium
1: Columnar cells bearing cilia; 2: Multicellular glandular epithelium
Which statement regarding anal cerci and anal style in cockroach is correct?
Anal cerci are absent but anal styles are present in male.
Anal cerci are absent and anal styles are present in female.
Anal styles are absent and anal cerci are present in male.
Anal styles are absent and anal cerci are present in female.
Which of the following type of muscle tissue is being described on the basis of given statements ?
- These muscle fibres taper at both ends and do not show striations.
- The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
- They are involuntary as their function cannot be directly controlled.
Skeletal muscle
Smooth muscle
Cardiac muscle
All of these
The fibres of which of the following muscles are fusiform and do not show striations
Skeletal muscles
Cardiac muscles
Both (a) and (b)
Smooth muscles