Deficiency of vitamin ‘X’ causes bleeding of gums. This vitamin is essential for the absorption of mineral ‘Y’ and ‘X’ is found in food ‘Z’. Identify X, Y and Z.
(A) X-vitamin D, Y- calcium, Z-milk product
(B) X-vitamin C, Y-iron, Z-citrus fruits
(C) X-vitamin B, Y-calcium, Z-green leafy vegetables
(D) X-vitamin A, Y-phosphorus, Z-poultry products
Vitamin A deficiency can lead to night blindness and poor vision. B vitamins are a class of water-soluble vitamins. Vitamin B refers to several different types of vitamins that, together, are known as the B-complex vitamins. The commonly used Vitamin B Complex is constituted of 8 vitamins. Thiamin (vitamin B-1) Riboflavin (vitamin B-2) Niacin (vitamin B-3) Pantothenic acid (vitamin B-5) Vitamin B-6 Biotin (vitamin B-7) Folate (vitamin B-9) Vitamin B-12 Deficiency of Vitamin C can cause scurvy, a disease that is characterised by bleeding gums, skin spots, and swelling in joints. It also affects the immune system and can even be fatal in acute conditions. Vitamin C has been shown to enhance iron absorption. It captures non-heme iron and stores it in a form that's more easily absorbed by your body. Foods high in vitamin C include citrus fruits, dark green leafy vegetables, bell peppers, melons and strawberries. Citrus fruits are an excellent source of vitamin C. So from the above points, we can say that- 'X' = Vitamin C 'Y' = Iron (mineral) 'Z' = (Food) Citrus fruits
Metal ‘X’ displaces metal ‘Y’ from its salt solution but is not able to displace metal ‘Z’ from its salt solution. Identify the most reactive metal.
(A) X
(B) Y
(C) Z
(D) Cannot be determined.
Metal 'X' displaces metal 'Y' from its salt solution, so 'X' is more reactive than 'Y'. Metal 'X' Can not displace metal 'Z' from its salt solution, so 'Z' is more reactive than 'X'
Species restricted to a particular area are referred to as
(A) Endangered species
(B) Extinct species
(C) Endemic species
(D) Migratory species
Species that are restricted to a particular geographical area are called endemic species.
Which of the following represents the correct matching set?
(a) helps in the movement of the body by contraction and relaxation. (I) Cartilage
(b) Hard structure which forms the skeleton (ii) Muscles
(c) Part of the skeleton which can be bent (iii) Rib-cage
(d) Joins the chest bone and backbone together to form an enclosure (iv) Bones
(A) (1) (a) (i), (b) (iii), (c) (ii), (d) (iv)
(B) (a) (ii), (b) (iv), (c) (i), (d) (iii)
(C) (a) (iii), (b) (ii), (c) (i), (d) (iv)
(D) (a) (iv), (b) (iii), (c) (ii), (d) (i)
Where is the rare and emergency plant named Nipenthis Khasiana (Ghatparni) found?
(A) Himachal Pradesh
(B) Madhya Pradesh
(C) Meghalaya
(D) Uttar Pradesh
Found mainly in the state of Meghalaya, India's only pitcher plant species Nepenthes khasiana is endangered, facing threats from mining, shifting cultivation, and excessive collection, among others. N. khasiana is distributed in the Garo, Khasi, and Jaintia Hills.
What is the formation of diploid endosperm directly from the diploid megaspore mother-cell called?
(A) Diploid sporulation
(B) Ectopic pregnancy
(C) Ambrosia
(D) None of these
Diploid Sporosity:
The embryo sac, the master spore, is derived from the mother cell either directly by mitosis or by inhibiting meiosis. An eight-nucleated embryo sac is formed. This is a common process in plants like corn and wheat.
Which of the following glands in human beings secretes more than two hormones?
(A) Adrenal
(B) Pituitary
(C) Pancreas
(D) Thyroid
Pituitary gland: It is a small pea-sized gland. It is often called the master gland as it controls several other hormone glands in our body. It is located in the brain between Hypothalamus and the Pineal gland. So, the pituitary gland in human beings secretes more than three hormones.
Deficiency of which of these vitamin causes anaemia in humans?
(A) Vitamin D
(B) Vitamin B
(C) Vitamin A
(D) Vitamin B12
Symptoms of vitamin B12 deficiency or folate deficiency anemia develop slowly and are similar to those of other types of anemia, such as fatigue, weakness, and pale skin. Vitamin B12 deficiency can also cause nerve damage, the main symptoms of which include tingling, loss of touch, and muscle weakness. Confusion can arise when Vitamin B12 becomes too low. Vitamin B12 deficiency anemia in the elderly can be mistaken for dementia. This happens because of similar symptoms.
Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?
(A) Hemichordata
(B) Aschelminthes
(C) Echinodermata
(D) Mollusca
1. All the creatures of Echinodermata phylum are marine and have thorny bodies.
2. There is a mass flow system in their body.
3. A specific water-conveying canal system is found, which helps in their movement.
Which of the following can degrade detritus into simpler inorganic substances?
(A) Algae
(B) Phytoplankton
(C) Fungal enzymes
(D) Lichens
1. Fungal enzymes decompose simple inorganic substances.
2. Fungi are a type of microorganisms that decompose organic matter.
3. Enzymes break down organic matter into smaller molecules, which can then be used by the body of the fungus.
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