Dakshana Mock Test Season V Solutions
Dakshana Mock Test Season V Solutions
1] In a space exploration, scientists found a sample on planet X having cell like composition. Upon examination, they failed to notice any movement at molecular level in these structures. On the basis of this information, will you classify these structures as
Answer: Non-living
2] Dark reaction and light reaction of photosynthesis takes place in
Answer: stroma and grana of chloroplast, respectively
3] In desert plants, the stomata remain open during
Answer: Night
4] Bile juice contains which of the following components that helps in the digestion of fat?
Answer: Bile salts
5] Fill in the blanks. In the process of respiration ____.
Answer: molecules undergo oxido-reductive chemical process to liberate energy
6] Fill in the blanks. The process of respiration ____.
Answer: may or may not require oxygen
7] Specific organs are not required for taking food, gaseous exchange and removal of wastes in unicellular organisms because
Answer: All of these
8] The transportation system in an organism is responsible for
Answer: both (i) and (ii)
9] The excretory waste products are
Answer: useless metabolic by-products that could be toxic
10] Through stomata the following materials are exchanged
Answer: All of the above
11] Which one of the following statements is correct about the human circulatory system?
Answer: Valves ensure that the blood does not flow backwards.
12] How much energy is released from hydrolysis of terminal phosphate of one mole of ATP?
Answer: 30.5 kJ/mole
13] An athlete complaint of muscle pain after rigorous physical workout. What could be probable reason for it?
Answer: Accumulation of lactic acid
14] Haemoglobin is responsible for the transportation of
Answer: both oxygen and carbon dioxide.
15] Ascent of sap through xylem is an
Answer: passive process
16] Transpiration is a necessary evil because?
Answer: Both (i) and (ii)
17] In plants, which of the following structures help in excretion?
Answer: All of the above
18] Nephrons, the structural and functional unit of human kidney, are composed of?
Answer: All of the above
19] Where do the major reabsorption of solutes like glucose, amino acids, salts and a major amount of water takes place in human kidney from the filtrate?
Answer: Proximal convulated tubule
20] Which of the following statements are true?
(a) Sudden action in response to something in the environment is called reflex action.
(b) Sensory neurons carry signals from spinal cord to muscles.
(c) Motor neurons carry signals from receptors to spinal cord.
(d) The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.
Answer: (a) and (d)
21] In humans, the life processes are controlled and regulated by
Answer: nervous and endocrine systems
22] A doctor advised a person to take an injection of insulin because
Answer: his sugar level in blood was high
23] Dramatic changes of body features associated with puberty are mainly because of secretion of
Answer: testosterone from testes and estrogen from ovary
24] Which of the following statements about transmission of nerve impulse is incorrect?
Answer: At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron.
25] Select the mis-matched pair:
Answer: Adrenaline: Pituitary gland
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