Exercises
Q1- State whether the statements are active or passive . Then
change active to passive and passive to active .
1- Plant absorbs carbon dioxide .
2- Chromosome is containing DNA and histones .
3- Plasma membrane is protecting the cell from the outside
environment .
4- The sun light is absorbed by the chlorophyll .
5- mRNA is translated by the ribosome .
6- Protein synthesis was coordinated by the genetic material .
7- All plants synthesized carbohydrates during photosynthesis .
8- Ribosome translates mRNA to build polypeptide .
9- Cell theory considered the cell as the basic unit of life .
10- Plants prevent soil erosion .
11- Plant biology involved the scientific study of plant .
12- The nucleus contains the nuclear DNA .
13- Lysosomes contained enzymes that aid in digestion .
14- DNA is coordinating protein synthesis
15- Carbohydrates were manufactured by plant cells .
16- Double helix was purposed by Watson and Crick .
Q2- State whether the following statements are true or false . Then
correct the false statements .
1- The genetic information in a genome is held within genes .
2- Ribosome is one important cellular organelle participates in
energy product .
3- The cell is the largest unit of life in our bodies .
4- Plants have a skeleton for support .
5- Animal cells contain an organelle called the chloroplast .
6- The transcription phase of protein synthesis takes places in the
cell cytoplasm .
7- All cells have the same functions and features .
8- The mitochondria have a specialized pigment called chlorophyll.
9- Botany covers a narrow range of scientific disciplines
10- Through photosynthesis , plants absorb carbon dioxide .
11- The genetic information in a genome is held within genes .
12- Virology is a branch of biology concerned with the study of
insects .
13- The translation of mRNA occurs in the cell nucleus .
14- The plasma membrane protecting the cell from the inside
environment .