1st Year Biology Chapter 1 Test01. Cells and Sub-Cellular Organelles

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following processes includes all others.
   1. Osmosis
   2. Diffusion of a solute across a membrane
   3. Facilitated diffusion
   4. Passive transport
2. Some cellular organelles are bound by a single membrane, while other organelles have two membranes (envelopes) around them. Which one of the following is correct?
   1. Single membrane : Double membranes peroxysomes, lysosome nucleus, chloroplast
   2. Single membrane : Double membranes chloroplast, lysosome nucleus, perox:ysomes
   3. Single membrane : Double membranes nucleus, chloroplast lysosome, perox:ysomes
   4. Single membrane : Double membranes nucleus, lysosome chloroplast, peroxysomes
3. Which of the following can pass through the cell membrane by simple diffusion?
   1. Glucose
   2. Amino acids
   3. Oxygen and carbon dioxide
   4. Proteins
4. Which structure is present in plant cells but absent in animal cells?
   1. Mitochondria
   2. Golgi apparatus
   3. Cell wall
   4. Lysosome
5. Which of the following statements is true for osmosis?
   1. It requires energy
   2. It moves molecules against the gradient
   3. It moves solutes only
   4. It occurs through semipermeable membrane
6. The resolving power of an electron microscope is approximately:
   1. 0.2 nm
   2. 0.2 mm
   3. 200 nm
   4. 2 µm
7. Ribosomes in prokaryotes are:
   1. 70S
   2. 80S
   3. 90S
   4. 60S
8. In a light microscope, image produced is:
   1. Virtual and erect
   2. Real and erect
   3. Real and inverted
   4. Virtual and inverted
9. Which of the following is an exception to cell theory?
   1. Plant cells
   2. Viruses
   3. Fungal cells
   4. Animal cells
10. The cell theory states that:
    1. All living organisms are composed of cells
    2. Cells are the basic unit of life
    3. All cells arise from pre-existing cells
    4. All of the above