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10th Class Examination 2015 Biology important Question / Mcqs and Complete Notes

10th Class Examination 2015 Biology  important Question / Mcqs and Complete  Notes
1
The plants living in dry environment are
Halophytes
Hydrophytes
Epiphytes
Xerophytes
2
How many branches are there in the air passage way?
one
two
many
None
3
How many types of blood vessels around the alveoli?
artery
arterioles
capillary
vein
4
Adoptions found in plants to keep the balance of carbon dioxide and oxygen are
Photosynthesis
Stomata
translation
All of these
5
The primary chemical stimulus for breathing is the concentration of
Carbondioxide in blood
Oxygen in blood
Carbondioxide in muscles
Blood in muscles
6
The example mucilage excreting plant is
Keekar
Rubber
Confiers
Lady finger
7
Which structure actively helps in talking the air out of lungs?
Nasal cavity
bronchus
bronchiole
Diaphragm
8
The chest wall is made up of —— pieces of ribs.
10
12
14
16
9
The normal body temperature of man is
35.5°F
37.0°F
98.6°C
36.9°C
10
Larynx continues to the trachea, which is also called the……………
Hand pump
Wind pipe
Long tube
None
Short Questions:
What is pharynx?
Write short note on emphysema.
Differentiate between breathing and cellular respiration.
What is meant by lenticels?
Define homeostasis. Give two examples.
How homeostasis of CO2 and O2 takes place in plants?
What is excretion? Give its importance.
In plants, from where, water enters and leaves the plant?

Question No. 3 —– [7 Marks]
1 Write down the steps of inhalation and exhalation.
2 Point out bad aspects of smoking.
Question No. 4 —– [7 Marks]
1 Explain structure of kidney. Also explain the function of its functional unit.

SECTION IV —– (PRACTICAL QUESTIONS)

Q. 5 Show the path of air from the nasal cavity to the alveoli with help of diagram.
Q. 6 Draw the diagram of nephron and label it.
1
Bone marrow are present in
Compact bone
Tendon
Cartilage
Spongy bone
2
Saltatory nerves are _______ nerves.
Brain
Spinal cord
Jumping
Stable
3
The hardest connective tissue of body is.
Cartilage
Ligaments
Bone
Tendons
4
Spinal cord is continuation of:
Pons
Medulla
Hippocampus
Thalamus
5
The size of pupil depends on
Iris
Lens
Ciliary Muscles
Cornea
6
Fovea is also known as
Optic disc
Blind spot
Choroid
Sharpness center
7
Ear drum is also called
Tapetum
Rhodopsin
Iodopsin
None of these
8
The number of bones in human appendicular skeleton is
206
126
166
106
9
During summer, the urine output is low due to
ADH
Sweating
Oxytocin
Heat
10
The example of hinge joint is
Shoulder joint
Arm and elbow joint
Arm and shoulder joint
Neck joint
SECTION II —– (SHORT QUESTIONS)

Q. 2 Briefly Answer the Following Questions. [2 x 8 = 16]
1 How do you define coordination and control?
2 Differentiate between motor, sensory and inter-neurons.
3 Differentiate between positive and negative feedback mechanism.
4 What are gonads? Name three hormones produced by both type of gonads.
5 Difference between Exoskeleton and endoskeleton?
6 What is skeleton system? Give its functions.
7 What is difference between movement and locomotion?
8 What is cartilage? Give its structure?

SECTION III —– (EXTENSIVE QUESTIONS)

Question No. 3 —– [7 Marks]
1 What is a joint? Describe the types of joints (4)
2 Write a short note on posterior lobe of pituitary gland. (3)
Question No. 4 —– [7 Marks]
1 Explain structure of ear in detail. (7)
SECTION IV —– (PRACTICAL QUESTIONS)

Q. 5 Draw diagram of human eye and label it. [5]
Q. 6 Prove that calcium is present in our bones. [5]
1
Narrow spectrum antibiotics:
Ciprofloxacin
Sulphonamides
Penicillin.
Tetracycline
2
Synthetic drug is:
Penicillin
Digitalis
Aspirin.
None of these
3
Which are memory cells?
Beta-lymphocytes.
RBC’s
Platelets
T-Cells
4
Antibiotic resistance in bacteria is example of:
Evolution.
Natural Selection
Artificial Selection
All of these
5
The ratio of F1 in dihybrid cross of Mendel is:
9:3:3:1
1:2:1
3:1
No ratio.
6
Human height is example of ____ variation
Continuous.
Discontinuous
Pure
Unpure
7
Punnett square was introduced by a:
Biologist
Mathematician.
Physicist
Botanist
8
Mendel used _____ peas for experiment.
28,000
2,800
280,000
280
9
New strand of DNA is called
Template
Non-Template.
Non-Coding
None of these
10
Did Mendel use spectacles?
Yes.
No
SECTION II —– (SHORT QUESTIONS)

Q. 2 Briefly Answer the Following Questions. [2 x 8 = 16]
1 Write note on antibiotic resistance.
2 What are addictive drugs? What they do? Also tell four names.
3 What are vaccines? Write examples.
4 What is co-dominance and incomplete dominance?
5 Explain theory of special creation.
6 Why Mendel was so successful?
7 What is nucleosome?
8 How Mendel control pollination in pea flowers?
SECTION III —– (EXTENSIVE QUESTIONS)

Question No. 3 —– [7 Marks]
1 Write a note on Watson and Crick DNA Double Helix Model. (7)

Question No. 4 —– [7 Marks]
1 Explain antibiotics and their types. (4)
2 Explain mechanism of evolution in light of natural selection. (3)

SECTION IV —– (PRACTICAL QUESTIONS)

Q. 5 Explain Mendel’s Law of Segregation with F1 and F2 generations. [5]
Q. 6 Show the result by drawing a F2 generation Punnett square for alleles “RrYy” and “RrYy”, where Round Yellow is dominant. [5]

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