百度试题 结果1 题目The diagram below shows a cell.Which part of a living thing is this cell likely to be taken from? B A) hair of a cat B) root of a tree 相关知识点: 试题来源: 解析 B 反馈 收藏
The process of fertilization of an egg by a sperm cell typically happens in the Fallopian tubes, and the fertilized egg moves into the uterus where it is implanted. Beside the uterus on each side and near the opening of the Fallopian tubes are the small, oval ovaries. They produce hormones...
- Draw short, hair-like projections on the surface of the cell to represent pili, which assist in attachment and genetic exchange. 9. Draw the Capsule: - Add a sticky outer layer around the cell wall to represent the capsule, which helps in adhesion and prevents drying out. 10. Label ...
The stratum granulosum is composed of tightly compacted, flattened cells that help waterproof the skin. The stratum spinosum contains irregular shaped (spiny) cells that are several cell layers thick. Lastly, the stratum basale layer is made up of differentiation cells that are constantly dividing to...
Functions of Cell Membrane The cell membrane provides mechanical support that facilities the shape of the cell while enclosing the cell and its components from the external environment. It regulates what can be allowed to enter and exit the cell through channels, acting as a semi-permeable membrane...
Exercise:Ncert Exercises (Differentiate between ) Explore11Videos Exercise:REVIEW QUESTIONS ( Long answer type questions ) Explore10Videos Similar Questions Draw a neat labelled diagram of an animal cell. View Solution Draw a neat labelled diagram of a biogas plant. ...
They make up our hair, nails, skin and blood. Examples of proteins include collagen for structure, hemoglobin (oxygen carrier in blood), and enzymes, which lower the activation energy of reactions to allow them to happen at a quicker, more efficient rate. Proteins are large macromolecules (...
They make up our hair, nails, skin and blood. Examples of proteins include collagen for structure, hemoglobin (oxygen carrier in blood), and enzymes, which lower the activation energy of reactions to allow them to happen at a quicker, more efficient rate. Proteins are large macromolecules (...
Learn to describe the external structure of the ear by studying a diagram of the ear canal. Explore the location, anatomy and function of the ear...
Now imagine that you could cut the protein filaments making up the cell's cytoskeleton and measure thediameteracross the cut face. Each fiber would measure between 3 and 25 nanometers in diameter, depending on the type of filament. For context, a human hair is 75,000 nanometers in diameter...