Which features are common to all cells?
Check all that apply.
All cells have
cytoskeleton
lysosomes
vacuoles
the cytoplasm
flagella and fimbriae
photosynthetic membranes
the plasma membrane
ribosomes
the cell wall
genetic information (DNA) in chromosomes
chloroplasts
the endoplasmic reticulum
mitochondria
the nucleus
I tried cytoplasm, plasma membrane, ribosomes, and DNA, but it comes up wrong.
all but DNA
Ya diche bag
Issued: black; returned: white;
To identify the features that are common to all cells, we need to understand the basic structure of a cell and its components.
1. Cytoskeleton: The cytoskeleton is a network of protein filaments that provides structural support and shape to the cell. It helps in cell movement and cell division.
2. Lysosomes: Lysosomes are organelles involved in intracellular digestion and recycling of cellular waste. They contain enzymes that break down macromolecules.
3. Vacuoles: Vacuoles are membrane-bound sacs present in the cytoplasm of cells. They function in storage, waste disposal, and maintaining cell turgidity.
4. The cytoplasm: The cytoplasm is the gel-like substance present inside the cell, surrounding the organelles. It provides a medium for cellular processes to occur.
5. Flagella and fimbriae: Flagella and fimbriae are appendages found on some cells for movement and attachment. However, not all cells possess these structures.
6. Photosynthetic membranes: Photosynthetic membranes are found in cells of organisms capable of photosynthesis, such as plants and algae. They contain pigments like chlorophyll and are involved in harvesting light energy to produce glucose.
7. The plasma membrane: The plasma membrane, also known as the cell membrane, is a phospholipid bilayer that separates the cell from its external environment. It controls the entry and exit of substances and maintains cell homeostasis.
8. Ribosomes: Ribosomes are small organelles that are responsible for protein synthesis. They can be found individually in the cytoplasm or attached to the endoplasmic reticulum.
9. The cell wall: The cell wall is a rigid layer located outside the plasma membrane in plant cells, fungi, and some bacteria. It provides structural support and protection.
10. Genetic information (DNA) in chromosomes: All cells contain genetic information in the form of DNA, which is organized into chromosomes. This genetic information determines the characteristics and functions of the cell.
11. Chloroplasts: Chloroplasts are organelles found in plant cells and some algae. They are involved in photosynthesis, converting light energy into chemical energy.
12. The endoplasmic reticulum: The endoplasmic reticulum (ER) is a network of membrane-bound sacs and tubules. It plays a role in protein synthesis, lipid metabolism, and detoxification.
13. Mitochondria: Mitochondria are often referred to as the "powerhouses" of the cell because they generate chemical energy in the form of ATP through cellular respiration.
14. The nucleus: The nucleus is the central organelle that contains the cell's genetic material and controls cellular activities. It is bounded by a nuclear membrane and contains DNA organized into chromosomes.
Based on this information, the features common to all cells are:
1. Cytoskeleton
2. The cytoplasm
3. The plasma membrane
4. Ribosomes
5. Genetic information (DNA) in chromosomes
Please recheck your answer using this information to see if any of the options you initially selected were incorrect.