Unit - II HUMAN BODY ORGAN SYSTEM -BIOLOGY
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Question 1 |
No. of bones in The Face…………...
8 | |
16 | |
5 | |
12 |
Question 2 |
No. of bones in In Wrist……………..
8 | |
16 | |
5 | |
12 |
Question 3 |
No. of bones in No. of lumbar vertebrae ……………
8 | |
16 | |
5 | |
12 |
Question 4 |
No. of bones in teeth in each jaw
8 | |
16 | |
5 | |
12 |
Question 5 |
- Assertion (A): Skin colour of human beings is determined by the presence of melonocytes present in the skin.
- Reason (R) : The skin color of humans cannot be changed by cosmetics.
A is right R is wrong | |
A is wrong, R is right | |
R explains A | |
R does not explain A |
Question 5 Explanation:
Reason: Skin colour of human is determined by the melanocytes. It can be changed by cosmetics.
Question 6 |
- Assertion (A) : A pair of testes is located in the scrotum outside the abdominal cavity.
- Reason (R) : The sperm formation requires a lower temperature than the normal body temperature..
A is right R is wrong | |
R explains A | |
R is right A is wrong | |
R does not explain A |
Question 7 |
- Assertion (A) : The first seven pairs of ribs are called false ribs
- Reason (R) : False Ribs are attached to the sternum indirectly.
A and R are right | |
A and R are wrong | |
A is wrong R is right | |
R Explains A |
Question 8 |
- Assertion (A) : The small intestine has finger like projections called villi
- Reason (R) : Absorption of food take place in small intestine
A is right R is wrong | |
A and R are wrong | |
R explains A | |
A is wrong R is right |
Question 9 |
- Assertion (A) : The right ventricle receives impure blood.
- Reason (R) : The pulmonary artery carries impure blood to the lungs.
A is right R is wrong | |
A is wrong R is right | |
R explains A | |
R does not explains A |
Question 10 |
Melanocytes are present in ……………
Dermis | |
Epidermis |
Question 11 |
The muscles are attached to bones by ………….
Ligaments | |
Tendons |
Question 12 |
……………muscles are found in upper arm.
Triceps | |
Deltoids |
Question 13 |
There are ………… head bones
8 | |
12 |
Question 14 |
Fertilization of ovum occurs in ……………
Uterine tube | |
Fallopian tube |
Question 15 |
The uterus contracts under the influence of ……………….
Progesterone | |
Oxytocin |
Question 16 |
The valves present near the mouth of pulmonary artery and aorta are
Tricuspid valves | |
Mitral valves | |
Auriculo – ventricular valves | |
Semi lunar valves |
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There are 16 questions to complete.
