Plants

Total Questions: 24

1 - Who discovered that plants have life?

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

2 - Salwar of plant cells is formed of----:

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

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 ) Androecium ✅
B ) Calyx
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 ) Producers 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 ) Oxygen
C ) Nitrogen
D ) Hydrogen

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

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

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

A ) Pb(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 ) Can cause a cell to become turgid ✅
B ) Results in the bursting of plant cell placed in pure water
C ) Required ATP
D ) None of these

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

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

A ) Root
B ) Dried latex ✅
C ) Stem
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 living in the area where it has been introduced
D ) Specialized disseminators of it seeds

21 - There are actually right flower birds used as spice-----:

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

22 - The gibberellins ----:

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

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

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

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

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