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Golgi apparatus (for secretion of digestive enzymes). Rough endoplasmic reticulum (for protein synthesis). Mitochondria (for energy production to support secretion). Related Questions: Why are mitochondria known as the powerhouse of the cell? What makes red blood cells more suitable for the transport of oxygen? Keeping in view the parts labeled 1 to 4 in … Read more
Unripe oranges contain chloroplasts with chlorophyll (green). During ripening, chloroplasts convert into chromoplasts, which contain carotenoids (orange pigments) Related Questions: Why are mitochondria known as the powerhouse of the cell? What makes red blood cells more suitable for the transport of oxygen? Keeping in view the parts labeled 1 to 4 in the plant cell … Read more
Red blood cells (RBCs) in animals lack a nucleus to store more hemoglobin for oxygen transport. Xylem vessels in plants lack nuclei to allow continuous water flow. Related Questions: Why are mitochondria known as the powerhouse of the cell? What makes red blood cells more suitable for the transport of oxygen? Keeping in view the … Read more
Structures present in all cells and their functions: Cell membrane – Controls movement of substances in and out. Nucleus – Stores genetic material (except prokaryotes). Chromosomes – Carry genetic information. Cytoplasm – Site for biochemical reactions. Ribosomes – Protein synthesis. RER & SER – Protein and lipid synthesis. Golgi apparatus – Modifies and packages proteins. … Read more
Components of the fluid mosaic model: The fluid component is phospholipids, which allow movement and flexibility. The mosaic component is proteins, embedded in the membrane for transport and signaling Related Questions: Why are mitochondria known as the powerhouse of the cell? What makes red blood cells more suitable for the transport of oxygen? Keeping in … Read more
1. Red blood cells – Biconcave shape increases surface area for oxygen transport. 2. Nerve cells – Long and branched structure helps in signal transmission. 3. Muscle cells – Elongated and flexible structure allows contraction and movement. Related Questions: Why are mitochondria known as the powerhouse of the cell? What makes red blood cells more … Read more
a. The structure labeled E is the nucleolus, and F is the nuclear membrane. b. The function of F (nuclear membrane) is to protect the nucleus and regulate the movement of materials between the nucleus and cytoplasm. c. The nucleolus (E) forms ribosomes. d. During cell division, the nuclear membrane (F) disappears temporarily to allow … Read more
a. The structure that controls cell activities is nucleus (part 4). part 1 (cell wall) surrounds the plasma membrane of plant cell. b. The biochemical process taking place in part 2 (chloroplast) is photosynthesis. c. If part 4 (nucleus) is removed, the cell will lose its ability to control functions and eventually die. If part … Read more
Red blood cells are adapted for oxygen transport due to: Their biconcave shape, which increases surface area for gas exchange. The absence of a nucleus, providing more space for hemoglobin. The presence of hemoglobin, which binds oxygen and carries it throughout the body. Related Questions: Why are mitochondria known as the powerhouse of the cell? … Read more
Mitochondria are called the powerhouse of the cell because they generate energy in the form of ATP through cellular respiration. This energy is used for various metabolic activities essential for cell survival. Related Questions: What makes red blood cells more suitable for the transport of oxygen? Keeping in view the parts labeled 1 to 4 … Read more