Name: Biodiversity and Megadiversity
Uploaded: 2019-07-19
Duration: 6 min 1 s
Description: Every day we come across so many types of living beings. Have you ever wondered how many different types of species are there in total? Watch this video.

Question

Solve this crossword puzzle.

Across

1. Present in the plant cell (8)

2. Powerhouse of a cell (7)

6. Controlling unit of a cell (7)

7. Green colour plastids (11)

8. The round organelle within the nucleus (9)

Down

1. Jelly-like fluid of the cell (9)

3. Storehouse of the cell (7)

4. Transfer of molecules from higher concentration to their lower concentration (9)

5. Semi-permeable (8)

Accepted Answer

Across:

1. The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.

2. Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

6. The nucleus is a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms. It's the largest organelle inside the cell taking up about a tenth of the entire cell volume.

7. The green colour plastid is called chloroplast. Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.

8. The round organelle within the nucleus is called the nucleolus. They are the site of ribosome biogenesis.

Down:

1. The jelly-like fluid of the cell is called cytoplasm. It enables cells to maintain their turgidity and hold their shape.

3. Vacuoles are the storehouse of a cell. They are present in the cytoplasm, and they store waste products in plants.

4. The transfer of molecules from higher concentration to their lower concentration is called diffusion.

5. The solvent molecules of a solution can pass through a semi-permeable membrane like the plasma membrane.

Important Questions on Cell - Structure and Functions

Learn and Prepare for any exam you want !