Plants

Total Questions: 24

1 - Who discovered that plants have life?

A ) Paul barg
B ) Robert koch
C ) Jagadish Chandra Bose ✅
D ) George Snell

2 - Cell wall of Plant cells is formed of----:

A ) Proteins
B ) Fats
C ) Cellulose ✅
D ) Hemi cellulose

3 - Which of the following is primary producer?

A ) Algae ✅
B ) Fungus
C ) Bacteria
D ) None of these

4 - ------ male part of a flower?

A ) Calyx
B ) Androecium ✅
C ) Thalamus
D ) Gynoecium

5 - What is the female part of plant called?

A ) Anther
B ) Pistil ✅
C ) Stamen
D ) Sepal

6 - The scientific cultivation of vegetables fruits and lawn grass is called:

A ) Horticulture ✅
B ) Sericulture
C ) Apiculture
D ) None of these

8 - Secondary growth of stems and roots----:

A ) It brought about by vascular and cork cambia ✅
B ) Is common in both monocots and eudicots
C ) It brought about by the apical meristems
D ) Produces only xylem and phloem

9 - Release of ovule from ovary is called ----?

A ) Ovulation ✅
B ) Fertilization
C ) Implantation
D ) Conception

10 - Plants during the night exhale ----:

A ) Carbon dioxide ✅
B ) Nitrogen
C ) Oxygen
D ) Hydrogen

11 - Which of the following element is not essential for plants?

A ) Iodine ✅
B ) Zinc
C ) Iron
D ) Potassium

12 - Which element of the following is not essential for plants?

A ) Pd( lead) ✅
B ) K (potassium )
C ) P( phosphorus )
D ) N (Nitrogen)

14 - Stoma, found in the epidermis of leaves closes when guard cells

A ) Lose water ✅
B ) Exchange gas
C ) Gain water
D ) None of these

15 - Osmosis-----:

A ) Results in the brusting of plant cells placed in pure water
B ) Can cause a cell of become turgid ✅
C ) Is independence of solute concentration
D ) Required ATP

16 - The process of removing water in the form of vapour from the leaves is called:

A ) Transpiration ✅
B ) Perspiration
C ) Respiration
D ) Nutrition

18 - Which of the following element is not essential for plant?

A ) Phosphorus
B ) Calcium ✅
C ) Potassium
D ) Nitrogen

19 - -----is called the opium poppy.

A ) Stem
B ) Root
C ) Dried latex ✅
D ) None of these

20 - A plant species is most likely to become invasive when introduced to a new area if-----:

A ) Has become invasive in other places where it has been introduced ✅
B ) It grows tall
C ) Closely related to species live in the area where it has been introduced
D ) Has specialized disseminators of its seeds

21 - They are actually dried flower buds used as a spice------:

A ) Cloves ✅
B ) Cinnamon
C ) Saffron
D ) None of these

22 - The gibberellins ----:

A ) Are produced only by fungi
B ) Are gases at room temperature
C ) Are responsible for phototropism and gravitropism ✅
D ) Cause bolting in some biennial plants

23 - What is defined as the minimal point of soil moisture the plant requires?

A ) Field point
B ) Soil point
C ) Wilting point ✅
D ) None of these

24 - قدرتی ہوا اور روشنی کے لیے کمرے کو کیسا ہونا چاہیے؟

A ) کمرے کی جانب جہاں سورج نکلتا ہو وہاں ایک بڑی کھڑکی ہو ✅
B ) کمرے کے درمیان میں ایک چھوٹی سی کھڑکی ہو
C ) کمرے کی خیچاوں سے بلاواسطہ تعلق
D ) ان میں سے کوئی نہیں