TNPSC Biology - Plant and Animal Physiology
Exam Duration: 45 Mins Total Questions : 30
Which of the following statements about sexual reproduction in flowering plants are correct?
1. Statements is present in the centre of a flower.
2. Stamen produces pollen grains in the ovary.
3. The swollen bottom part of carpel is the ovary.
4. The fusion of germ cells gives rise to zygote.
Select the correct answer using the codes given below
- (a)
2, 3 and 4
- (b)
2 and 4
- (c)
1 and 3
- (d)
All of these
Which blood group is a universal recipient?
- (a)
A
- (b)
B
- (c)
AB
- (d)
O
Among the following elements, which one is essential for the transmission of impulses in the nerve fibre?
- (a)
Calcium
- (b)
Iron
- (c)
Sodium
- (d)
Zinc
Which one of the following statements is correct?
Cretinism is human disorder which is due to the under secretion of
- (a)
adrenaline hormone
- (b)
cortisone hormone
- (c)
glucagon hormone
- (d)
thyroxine hormone
Process by which plant prepare their food is
- (a)
carbohydrolysis
- (b)
metabolic synthesis
- (c)
photosynthesis
- (d)
photorespiration
Which of the following organelles of a cell is/are involved in photosynthesis?
- (a)
Chloroplast
- (b)
Mitochondrion
- (c)
Endoplasmic reticulum
- (d)
Golgi bodies
Study the following statement(s)
1. The force by which water move upwards into tracheary element of xylem in the root region is root pressure.
2. Root pressure is measured by manometer.
3. Water will be absorbed by root hairs when the external medium is hypotonic.
4. Cohesion-Tension theory for ascent of sap was given by Dixon and Jolly.
Which of the statement given above are correct?
- (a)
1,2,3 and 4
- (b)
2,3 and 4
- (c)
1,2 and 3
- (d)
None of these
Which of the following gland is responsible for the secretion of insulin?
- (a)
Pituitary
- (b)
Pineal
- (c)
Thymus
- (d)
Pancreas
Which of the following contain enzymes for cellular respiration?
- (a)
Dictyosomes
- (b)
Endoplasmic reticulum
- (c)
Lysosomes
- (d)
Mitochondria
Which one of the following is the correct sequence in the order of decreasing length of the structural parts given below of small intestine in the human body?
- (a)
Jejunum - Duodenum -Ileum
- (b)
Ileum - Duodenum - Jejunum
- (c)
Jejunum - Ileum - Duodenum
- (d)
Ileum - Jejunum - Duodenum
Maximum nutritive element absorbed by blood from which part of alimentary canal?
- (a)
Large intestine
- (b)
Mouth
- (c)
Small intestine
- (d)
Stomach
Consider the following statements
1. Double fertilization is a characteristic of angiosperm.
2. Double fertilization is a characteristic of gymnosperm
3. Four nuclei participate in double fertilization.
4. Five nuclei participate in double fertilization.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
1 and 4
- (c)
2 and 3
- (d)
2 and 4
In a healthy person, rate of heart beat in one minute is
- (a)
58 times
- (b)
67 times
- (c)
72 times
- (d)
90 times
With which of the physiological process, thrombin is associated?
- (a)
Excretion
- (b)
Blood clotting
- (c)
Reproduction
- (d)
Growth
Match List I with List II and select the correct answer using the codes given below the lists.
List I | List II |
A. Female gamete | 1. Ovum |
B. The fusion of male and female gametes | 2. Fertilization |
C. Result of the fusion of male and female gametes | 3. Zygote |
D. Germ all | 4. Gonads |
- (a)
A B C D 4 1 2 3 - (b)
A B C D 3 4 1 2 - (c)
A B C D 2 3 4 1 - (d)
A B C D 1 2 3 4
Consider the following statements
1. Bile is secreted by the liver.
2. Bile is stored in the gall bladder. Bile has no digestive enzyme but responsible for fat emulsification.
4. Bile is also necessary for absorption.
4. Bile is also necessary for absorption of fat soluble vitamins - A, D, E, and K.
Which of the statements given above are correct about bile juice?
- (a)
1, 2 ,and 3
- (b)
1 and 2
- (c)
2, 3 and 4
- (d)
1, 2, 3 and 4
Study the following statements
1. Digestion of cellulose in rabbit takes place in caecum
2. Liver has 4 lobes in humans and 5 lobes in rabbit.
3. Phagocytic cells in liver are called Kupffer cells.
Which of the statements given above are correct?
- (a)
1, 2 and 3
- (b)
1 and 2
- (c)
2 and 3
- (d)
None of the above
Consider the following statements
1. Synthesis of fibrinogen prothrombin and heparin takes place in liver.
2. Liver stores glycogen and vitamin-A, D, E and K.
3. Liver is the site of glycogenesis and glycogenolysis.
Which of the statements given above are correct about liver function?
- (a)
1, 2 and 3
- (b)
2 and 3
- (c)
1 and 3
- (d)
1 and 2
Which of the following is necessary for digestion of food?
- (a)
Air
- (b)
Water
- (c)
Enzyme
- (d)
Mineral
Which one of the following is a membrane that protect the developing embryo from desication?
- (a)
Amnion
- (b)
Allantois
- (c)
Chorion
- (d)
Yolk sac
After digestion, protein is converted into
- (a)
fat
- (b)
glucose
- (c)
amino acid
- (d)
sucrose
With reference to the work of human kidney, consider the following statements
1. After the waste is removed in the kidney, the clean blood is sent back through renal artery.
2. From Bowman' capsule, the filtered liquid passes through tiny tubes were much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
None of these
Study the following statements
1. Earthworm is a hermaphrodite.
2. The asexual reproduction in sponges takes place by gemmule.
3. Sexual mode of reproduction in protozoa is anisogamy.
Which of the statements given above are correct?
- (a)
1,2 and 3
- (b)
1 and 2
- (c)
2 and 3
- (d)
1 and 3
Consider the following statements
1. during fertilization, first male gamete fuses with the egg nucleus and this process is called syngamy or true fertilization, which results in diploid structure called the zygote.
2. Secondary nucleus takes part in the process of triple fusion, which results in triploid structure called endospem.
Which of the statement(s) given above is/are true about fertilization in flowering plants?
- (a)
Only 1
- (b)
Only 2
- (c)
Both 1 and 2
- (d)
None of these
Consider the following statements
1. Humans have separate sexes like other mammals.
2. The gonads of mammals are paired organs that produce sex cells, i.e., sperm and eggs.
3. Men produce sperms more or less continuously and women ovulate about once a month.
4. human beings are unisexual.
Which of the statements given above are true about human reproduction?
- (a)
1,2,3 and 4
- (b)
1,2 and 3
- (c)
1,2 and 4
- (d)
2,3 and 4
Which one of the following pair is not correctly matched?
- (a)
Loop of Henle- Kidnly
- (b)
Fallopian tube - Female reproductive system
- (c)
Epididymis - Male reproductive system
- (d)
Cowper's gland -Intestine
Consider the following statements
1. Right kidney is slightly lower than left kidney.
2. Structural and functional unit of kidney is nephron.
3. Kidney lies below liver
Which of the statements given above correct about kidney?
- (a)
1, 2 and 3
- (b)
2 and 3
- (c)
1 and 3
- (d)
None of these
Which of the following is not the normal function of the human kidney?
- (a)
Regulation of water level in the blood
- (b)
Regulation of sugar level in the blood
- (c)
Filter out urea
- (d)
Secretion of several hormones
Study the following statements
1. Filtration of blood occur in Bowman's capsule.
2. Artificial kidney work on the principle of dialysis.
3. Main function of kidney is ultra filtration.
4. In mammals urinary bladder open into urethra.
Which of the statements given aboveare correct?
- (a)
1, 2, 3, and 4
- (b)
1, 2 and 3
- (c)
1 and 2
- (d)
2 and 3
Study the following statements
1. Gibberellin is first separated from fungi.
2. Indole acetic acid is auxin.
3. Abscisic acid is also called as stress hormone.
4. Cytokines is essential for cell division.
Which of the statements given above are correct?
- (a)
1, 2, 3 and 4
- (b)
1 and 2
- (c)
1, 2 and 3
- (d)
2 and 3