Structural Organisation in Animals
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Animal tissues (Epithelial, Connective, Muscular, Neural)
SubtopicAnimal tissues (Epithelial, Connective, Muscular, Neural) under Structural Organisation in Animals for Grade 11 CBSE.
Preview questions (no answers)
- 1.
The matrix of which tissue is reinforced with salts and collagen fibers to provide structural strength?
A.Cartilage
B.Bone
C.Areolar
D.Blood
- 2.
When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its:
A.Nucleus
B.Plasma membrane
C.Lacunae
D.Matrix
- 3.
Cuboidal epithelium is commonly found in which of the following?
A.Lining of the intestine
B.Ducts of glands
C.Wall of the heart
D.Brain
- 4.
The cells of which muscle tissue are multinucleated and show distinct striations?
A.Smooth muscle
B.Skeletal muscle
C.Cardiac muscle
D.Neural muscle
- 5.
Why is the skin considered to be composed of compound epithelium?
A.It is involved in high rates of absorption
B.It is made of a single layer of cuboidal cells
C.It is multi-layered to provide protection against abrasion
D.It contains many unicellular glands
- 6.
In a skeletal muscle, the muscle fibers are organized into bundles called:
A.Fascicles
B.Myofibrils
C.Osteons
D.Lacunae
- 7.
Bones have a structural role and also provide a site for:
A.Production of hormones
B.Blood cell production in marrow
C.Storage of glycogen
D.Rapid diffusion of gases
- 8.
What happens when a neural impulse reaches the 'neuron's endings'?
A.It triggers the death of the neuroglial cells.
B.It triggers events that may cause stimulation or inhibition of adjacent neurons.
C.It causes the neuron to physically shorten like a muscle cell.
D.It results in the immediate crystallization of the intercellular matrix.
- 9.
The matrix of which tissue is secreted by fibroblasts?
A.Neural tissue
B.Epithelial tissue
C.Connective tissue
D.Muscular tissue
- 10.
Which of the following epithelial tissues is characterized by a single layer of flattened cells with irregular boundaries?
A.Simple Cuboidal
B.Simple Squamous
C.Simple Columnar
D.Ciliated Columnar
Download the worksheet for Structural Organisation in Animals - Animal tissues (Epithelial, Connective, Muscular, Neural) to practice offline. It includes additional chapter-level practice questions.
Morphology, Anatomy and functions of Frog
SubtopicMorphology, Anatomy and functions of Frog under Structural Organisation in Animals for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which system in the frog is responsible for transporting nutrients and gases to various parts of the body?
A.Excretory system
B.Nervous system
C.Blood vascular system
D.Reproductive system
- 2.
A mature female frog can lay how many eggs at a time?
A.10-50
B.100-200
C.2500-3000
D.More than 1,000,000
- 3.
Which of the following describes the forebrain of a frog?
A.Contains optic lobes
B.Contains cerebellum
C.Includes olfactory lobes and paired cerebral hemispheres
D.Includes the medulla oblongata
- 4.
The thin-walled urinary bladder is present where in the frog?
A.Dorsal to the rectum
B.Ventral to the rectum
C.Inside the kidney
D.Attached to the stomach
- 5.
Absorption of digested food in the frog takes place primarily in the small intestine through finger-like projections called:
A.Flagella
B.Cilia
C.Villi and microvilli
D.Pseudopodia
- 6.
The ventricle of the frog's heart opens into a sac-like structure on the ventral side called the:
A.Sinus venosus
B.Conus arteriosus
C.Aorta
D.Precaval vein
- 7.
The final stage of the frog's life cycle involves metamorphosis. Which hormone is essential for this transformation from tadpole to adult?
A.Adrenaline
B.Thyroxine
C.Insulin
D.Estrogen
- 8.
What is the primary nitrogenous waste excreted by a frog when it is in its adult terrestrial stage, and what is its classification?
A.Ammonia; Ammonotelic
B.Urea; Ureotelic
C.Uric acid; Uricotelic
D.Guanine; Guanotelic
- 9.
In the female frog, the 'Oviducal funnel' (Ostium) is the site where eggs enter the oviduct. Where exactly is this structure located?
A.In the posterior part of the cloaca.
B.In the anterior part of the body cavity near the base of the lungs.
C.Within the tissue of the kidney.
D.Directly attached to the surface of the ovary.
- 10.
The frog's blood consists of plasma and cells. Which of the following is a characteristic of the frog's Erythrocytes (RBCs)?
A.They are nucleated, oval, and contain hemoglobin.
B.They are enucleated, circular, and lack hemoglobin.
C.They are nucleated, biconcave, and contain hemocyanin.
D.They are enucleated, oval, and contain hemoglobin.
Download the worksheet for Structural Organisation in Animals - Morphology, Anatomy and functions of Frog to practice offline. It includes additional chapter-level practice questions.
Organ and organ system
SubtopicOrgan and organ system under Structural Organisation in Animals for Grade 11 CBSE.
Preview questions (no answers)
- 1.
In mammals, the organ that separates the thoracic cavity from the abdominal cavity is:
A.Stomach
B.Lungs
C.Diaphragm
D.Liver
- 2.
The organ system level of organization is absent in which of these phyla?
A.Arthropoda
B.Mollusca
C.Porifera
D.Echinodermata
- 3.
Which of these organs is involved in both the digestive and endocrine systems in humans?
A.Stomach
B.Pancreas
C.Liver
D.Spleen
- 4.
The white of the eye is the visible part of which layer?
A.Retina
B.Sclera
C.Choroid
D.Cornea
- 5.
The wall of the frog's stomach secretes gastrin and which of the following?
A.Trypsin
B.Pepsinogen
C.Amylase
D.Lipase
- 6.
The 'urino-genital duct' in male frogs is another name for the:
A.Ureter
B.Vasa efferentia
C.Oviduct
D.Bidder's canal
- 7.
The excretory product of a frog's tadpole is:
A.Urea
B.Uric acid
C.Ammonia
D.Guanine
- 8.
The basic unit of the 'Neural System' which exerts the greatest control over the body's responsiveness to changing conditions is the:
A.Nephron
B.Neuron
C.Neuroglial cell
D.Sarcomere
- 9.
In the frog, the 'Fat Bodies' are associated with which system and what is their function?
A.Respiratory system; to help in buoyancy.
B.Excretory system; to store urea.
C.Reproductive system; to provide nourishment during hibernation/aestivation.
D.Nervous system; to protect the brain from shocks.
- 10.
Which of the following statements about the 'Muscular Tissue' of the frog is correct?
A.The heart is composed of smooth muscles.
B.Skeletal muscles are involuntary and unstriated.
C.The muscular wall of the alimentary canal contains smooth muscles.
D.Cardiac muscles are voluntary and help in locomotion.
Download the worksheet for Structural Organisation in Animals - Organ and organ system to practice offline. It includes additional chapter-level practice questions.