Biology Written Test Questions Medical Entrance Exams Online Exam Quiz
Biology Written Test Questions Medical Entrance Exams GK Quiz. Question and Answers related to Biology Written Test Questions Medical Entrance Exams. MCQ (Multiple Choice Questions with answers about Biology Written Test Questions Medical Entrance Exams
How do most of the nitrogen travels in the plants?
Options
A : As ammonia
B : As nitrates
C : As inorganic ions
D : As nitrogen gas
Where does the unloading of mineral ions occur in the plants?
Options
A : At the root endings
B : At the stem endings
C : At the root hair cells
D : At the fine vein endings
What is the direction of food in the phloem?
Options
A : Bi-directional
B : Unidirectional
C : Tri-directional
D : Non-directional
Where do plants obtain most of their carbon and oxygen?
Options
A : From nitrates in the soil
B : From ammonia in the soil
C : From nitrogen in the atmosphere
D : From carbon dioxide in the atmosphere
Which of the following carbohydrates acts as food for the plants?
Options
A : Glucose
B : Sucrose
C : Mannose
D : Lactose
Which of the following element is not remobilised?
Options
A : Phosphorous
B : Sulphur
C : Nitrogen
D : Calcium
Generally, from which of the following parts of the plants, the minerals are remobilised?
Options
A : Senescent parts
B : Growing parts of the plant
C : Younger leaves
D : Dead tissues
What is understood by the term sink in the plants?
Options
A : The part that needs the food
B : The part that synthesises the food
C : The part that is going to die
D : The part that is going to fall
Why can’t all minerals be passively absorbed through the roots?
Options
A : They are present in the soil as charged particles
B : The concentration of minerals in the soil is very high
C : Minerals can never be transported
D : Roots only absorb water
What are transport proteins?
Options
A : They are restriction points
B : They are control points
C : They are not present in plants
D : These proteins are present in animals and absent in plants
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