The correct answer is:(d) Golgi apparatus The Golgi apparatus forms lysosomes by packaging digestive enzymes into membrane-bound vesicles. These lysosomes help in breaking down waste materials, cellular debris, and foreign substances through enzymatic action. Class 9th Science NCERT MCQ Questions
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The correct answer is:(c) nucleoid. In prokaryotes, the nuclear region is called the nucleoid, which is an irregularly shaped area containing the cell’s genetic material (DNA). Unlike eukaryotic nuclei, it is not membrane-bound and floats freely in the cytoplasm.
The correct answer is (c) endocytosis. Amoeba captures food using phagocytosis, a type of endocytosis, where it extends its pseudopodia around the food particle, engulfing it into a food vacuole for digestion. Exocytosis is the process of expelling waste, not ...
The correct answer is:(b) vacuole. The tonoplast is a differentially permeable membrane that surrounds the vacuole in plant cells. It regulates the movement of ions, nutrients, and waste materials between the vacuole and the cytoplasm, helping maintain cellular homeostasis.
The correct answer is (d) glycolipids and glycoproteins. Carbohydrates in the plasma membrane are attached to lipids (glycolipids) or proteins (glycoproteins). They play a crucial role in cell recognition, signaling, and adhesion but are not present as cellulose, starch, or ...