Match the items in column I with those in column II. Column I Column II 1. Xylem a. Semipermeable 2. Phloem b. Permeable 3. Cell membrane c. Downward flow of sap 4. Root pressure d. Upward flow of water 5. Cell wall e. Guttation

(1)-(d) Xylem is a conducting tissue that conducts water in the plant. (2)-(c) Phloem is a conducting tissue that conducts food in the plants from leaves to roots. (3)-(a) The cell membrane is semipermeable or selectively permeable. (4)-(e) Root pressure creates guttation at night in some plants. (5)-(b) The cell wall is seen in plant cells and it is permeable. Column I Column II 1. Xylem d. Upward flow of water 2. Phloem c. Downward flow of sap 3. Cell membrane a. Semipermeable 4. Root pressure e. Guttation 5. Cell wall b. Permeable

HARD

Earn 100

Draw a well labelled diagram of a prokaryotic cell.

Important Questions on Cell - Structure and Functions

EASY

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Explain why, chloroplast are found only in plants cells.

MEDIUM

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Match the items in column I with those in column II.

Column I	Column II
1. Xylem	a. Semipermeable
2. Phloem	b. Permeable
3. Cell membrane	c. Downward flow of sap
4. Root pressure	d. Upward flow of water
5. Cell wall	e. Guttation

MEDIUM

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Explain why chloroplasts are found only in plant cells?

EASY

Science>Biology>Cell - Structure and Functions>Parts of the Cell

The number of homologous chromosomes in each normal human cell (write in numerals).

EASY

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Who coined the term protoplasm?

MEDIUM

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Name the scientist who proposed the chromosomal theory of inheritance (Walter Sutton and Theodore Boveri/Charles Darwin)

HARD

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Which of the following are prokaryotic cells and which are eukaryotic cells?
Amoeba cell, Bacterium cell, Human cheek cell, Blue-green algae cell, Onion peel cell.

MEDIUM

Science>Biology>Cell - Structure and Functions>Parts of the Cell

Complete the crossword with the help of clues given below.

Across

1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.

Down

1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.

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