The connective tissue that transports oxygen and nutrients is:
A. Blood
B. Cartilage
C. Adipose
D. Bone
Answer: Option A
Solution (By JKSSB Mock Tests)
Blood is a fluid connective tissue that circulates through vessels, transporting oxygen (bound to hemoglobin), nutrients, hormones, and waste products. Bone provides support, cartilage cushions, adipose stores fat.
Explanation:
Monotropa (Indian pipe) is a saprophytic angiosperm that obtains nutrition from dead organic matter through mycorrhizal association. Cuscuta is a parasitic plant (dodder), Drosera (sundew) and pitcher plant are insectivorous plants. Saprophytes lack chlorophyll and are heterotrophic. Monotropa belongs to the family Ericaceae. Saprophytism is uncommon in angiosperms.
In the process of urine formation, the step that involves selective reabsorption of glucose, amino acids, and water from the filtrate back into the blood is:
Explanation:
Tubular reabsorption occurs mainly in the proximal convoluted tubule, where essential substances like glucose, amino acids, and most water are reabsorbed into peritubular capillaries via active and passive transport. Glomerular filtration/ultrafiltration is the initial passive filtration of blood. Tubular secretion adds substances like H⁺ and K⁺ to filtrate.
Explanation:
The interventricular septum is a thick muscular wall that divides the two ventricles, preventing mixing of oxygenated and deoxygenated blood. Valves prevent backflow, atria are upper chambers.
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