31. In which of the following class are the pulse producing plants kept?
[A] Liliaceae
[B] Solanaceae
[C] Malvaceae
[D] Leguminosae
Show Answer
Correct Answer: D [Leguminosae]
Notes:
Pulses are part of the legume family, but the term “pulse” refers only to the dried seed. Dried peas, edible beans, lentils and chickpeas are the most common varieties of pulses. The term “legume” refers to the plants whose fruit is enclosed in a pod. Other well-known legumes include alfalfa, clover, fresh peas, lupins, mesquite, soy and peanuts.
32. In Angiosperms, plant embryos in seed have structures called ____:
[A] Buds
[B] Spore
[C] Sprout
[D] Cotyledon
Show Answer
Correct Answer: D [Cotyledon]
Notes:
The word angiosperm means seed. The seeds develop inside an organ which is modified to become a fruit. These are also called flowering plants. Plant embryos in seeds have structures called cotyledons. Cotyledons are called ‘seed leaves’ because in many instances they emerge and become green when the seed germinates.
33. The ‘DPT vaccine’ is given to young babies to protect them from ____:
[A] Diphtheria, Polio and Tetanus
[B] Diphtheria, Pneumonia and Tuberculosis
[C] Diphtheria, Smallpox and Tetanus
[D] Diphtheria, Whooping cough and Tetanus
Show Answer
Correct Answer: D [Diphtheria, Whooping cough and Tetanus]
Notes:
DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. The vaccine components include diphtheria and tetanus toxoids, and killed whole cells of the organism that causes pertussis.
34. Night Blindness is caused by the deficiency of Vitamin ___:
[A] Vitamin A
[B] Vitamin C
[C] Vitamin K
[D] Vitamin B12
Show Answer
Correct Answer: A [Vitamin A]
Notes:
Night blindness, also called nyctalopia, is failure of the eye to adapt promptly from light to darkness that is characterized by a reduced ability to see in dim light or at night. It occurs as a symptom of numerous congenital and inherited retinal diseases or as a result of vitamin A deficiency.
35. What is the average life of Red Blood Cells in human body?
[A] Around 120 days
[B] Around 200 days
[C] Around 400 days
[D] Equivalent to human’s life
Show Answer
Correct Answer: A [Around 120 days]
Notes:
Red blood cells, also called erythrocytes, are the most abundant cell type in the blood. The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs. Red blood cells are derived from stem cells in red bone marrow. These cells have a life-span of about 120 days.
36. Alveoli are balloon like structures within the ____:
[A] Heart
[B] Lungs
[C] Liver
[D] Kidney
Show Answer
Correct Answer: B [Lungs]
Notes:
Alveoli are the small balloon-like sacks of 200– 500 ?m diameter, making up a vital part of the respiratory zone of the lungs. Each alveolus (singular) plays an important role in letting oxygen and carbon dioxide move into and from the blood stream during inhalation and exhalation. he balloon-shaped alveoli cover approximately 70 square meter area within the lungs, with this wide surface area contributing towards a more efficient gas exchange.
37. In cauliflower plant the useful part is ___:
[A] Young inflorescence
[B] Underground stem
[C] Leaves
[D] Root
Show Answer
Correct Answer: A [Young inflorescence]
Notes:
Cauliflowers are characterized mainly by a inflorescence composed of numerous undeveloped flowers that gather around a central axis. Cauliflower and broccoli are grown for their large, edible, very young inflorescence.
38. Which of the following is necessary for Blood clotting in humans?
[A] Vitamin A
[B] Vitamin C
[C] Vitamin E
[D] Vitamin K
Show Answer
Correct Answer: D [Vitamin K]
Notes:
Vitamin K is a group of structurally similar, fat-soluble vitamins the human body requires for complete synthesis of certain proteins that are prerequisites for blood coagulation. It is noteworthy for the synthesis of Prothrombin (coagulation factor II) that forms thrombin in the clotting process. Without vitamin K, blood uncontrolled bleeding occurs.
39. The histogen, from which epidermis is formed, is _____:
[A] Calyptrogen
[B] Plerome
[C] Dermatogen
[D] Periblem
Show Answer
Correct Answer: C [Dermatogen]
Notes:
There are three meristematic layers in plants which consist of three sets of initials known as histogen. Dermatogen is the outermost layers, the cells of which divide anticlinally and give rise to the epidermis. Periblem and Plerome are the other two histogen.
40. Conglobate gland is a leaf like structure found in ____:
[A] Male Ascaris
[B] Male Cockroach
[C] Female Cockroach
[D] Female Ascaris
Show Answer
Correct Answer: B [Male Cockroach]
Notes:
Conglobate gland is a leaf like, median, unbranched gland of male cockroach. It lies below the ejaculatory duct and open into the genital pouch close to the male genital aperture.
