The structure that protects the tip of the growing shoot is the:
A. Apical meristem
B. Leaf primordia
C. Terminal bud
D. Root cap
Answer: Option C
Solution (By JKExamLibrary)
The terminal (apical) bud, containing the shoot apical meristem, is covered by young leaf primordia, which protect the delicate meristematic tissue. The root cap protects the root apical meristem. Leaf primordia develop into leaves. Terminal buds are often dormant in winter.
Explanation:
Osmosis is the net diffusion of water through a selectively permeable membrane from a region of low solute (high water potential) to high solute (low water potential).
Consider statements about the cell wall: 1. Plant cell walls are made of cellulose. 2. Fungal cell walls contain chitin. 3. Bacterial cell walls contain peptidoglycan. Which are correct?
Explanation:
The cell wall composition varies across kingdoms. Plant cell walls are primarily composed of cellulose, a complex polysaccharide. Fungal cell walls are characterized by the presence of chitin, providing structural rigidity. Bacterial cell walls consist of peptidoglycan (murein). Therefore, all three statements accurately describe the cell wall composition of these respective groups.
Explanation:
Oxidative phosphorylation occurs on the inner mitochondrial membrane, where the electron transport chain creates a proton gradient, and ATP synthase uses this gradient to produce ATP. This is the major source of cellular energy. Nucleus stores DNA, Golgi processes proteins, ribosomes synthesize proteins.
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