Biology OL
Quiz by Mohamed Kadri
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- Q1
The roots of plants take up (NO3)- salts from the soil, these mineral salts are used to make........
lipids
carbohydrates
proteins.
cellulose
60s - Q2
Which of the following elements is needed by the plant as the main element for protein synthesis ?
Chlorine
Nitrogen
Zinc
Iron
60s - Q3
If the concentration of K+ ions in the swamp water is 1200 ion/liter. So,the concentration of these ions in the cellular sap of Nitella alga is ·· · · · · · · · · · · · · · ion/liter.
500
2100
800
1000
60s - Q4
Mineral salts are essential elements and their deficienies may lead to disturbance in the plant growth. These elements are divided into two big groups macronutrients and ............
Users enter free textType an Answer60s - Q5
In the attached image, the element enter the cell of nitella algae by
Diffusion
Osmosis
Imbibition
Active Transport
60s - Q6
The diagram shows a plant cell. What is the appearance of this cell after it has been placed in pure water for 30 minutes?
60s - Q7
A student cuts out four pieces of carrot root of equal size. The pieces are treated as shown in the diagram, and then left for two hours. After two hours, which piece of carrot will be the smallest?
60s
