Q1.The right portion of human heart receives ______ blood.
(d) None of these
Q2. The Thymus gland produces a hormone called .
Q3. Blood group AB has
(a) No antigen
(b) No antibody
(c) Neither antigen nor antibody
(d) Both antigen and antibody
Q4. The most abundant element in the human body is
Q5. Emblica officinalis is the scientific name of
Q6. Which of the following glands is a source of the enzyme Ptyalin?
(b) Thyroid Gland
(c) Pituitary Gland
(d) Salivary Glands
Q7.Which of the following is a structural and functional unit of kidneys?
(a) Renette Cells
(b) Flame Cells
Q8.Which non-flowering, spore bearing plants have roots?
Q9.What is the name of the acid in grapes?
(a) Lactic acid
(b) Formic acid
(c) Acetic acid
(d) Tartaric acid
Q10. Which of the following nutrients helps in greening of plants?
Sol. The right side of the heart collects impure blood from the body and pumps it to the lungs. The left side of the heart collects pure blood from the lungs and pumps it to the body. The left and right sides of the heart are divided by walls called septum.
Sol.The thymus gland is located behind sternum and between lungs. Thymosin is the hormone of the Thymus. Thymosin stimulates the development of T cells.
Sol.Group AB has both A and B antigens on red cells (but neither A nor B antibody in the plasma).
Sol. Oxygen is the most abundant element in the human body,a lmost 99% of the mass of the human body is made up of six elements oxygen, carbon, hydrogen,nitrogen, calcium, and phosphorus.
Sol. Phyllanthus emblica is scientific name of amla it is a deciduous tree of the family Phyllanthaceae.
Sol. Salivary gland is a source of enzyme Ptyalin. The enzyme ptyalin ,or salivary amylase acts on starches and converts them to maltose. It helps in the predigestion of starches.
Sol. A nephron is the structural and functional unit of the kidney. A nephron is used separate to water, ions and small molecules from the blood, filter out wastes and toxins, and return needed molecules to the blood.
Sol. Ferns are non-flowering, deciduous or evergreen perennial plants that grow in various sizes having roots. The fern’s life cycle continues when spores germinate in sunlit, moist environments.
Sol. The principal organic acid found in grapes is Tartaric Acids.
Sol. Nitrate (the form of nitrogen that plants use) helps foliage grow strong by affecting the plant’s leaf development. It is also responsible for giving plants their green coloring by helping with chlorophyll production.
You may also like to read: