#Question id: 14119
#SCPH05 I Biotechnology
#Question id: 296
#SCPH01 Biochemistry
In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.
#Question id: 10522
#I Life Science/ Life Sciences Group – I-V
Mechanical barriers
provide a first line of defence against insect pests and pathogens, these
mechanical barriers developed by plants;
COLUMN A |
COLUMN B |
A. Thorns |
i) It can be found on the stem and petioles of
roses and are formed by the epidermis |
B. Spines |
ii) Found on a lemon tree (Citrus sp.) are
modified branches, as can be seen by their position in the axil of a leaf |
C. Prickles |
iii) Found on shoot and leaves of tomato (Solanum
lycopersicum) are derived from epidermal cells |
D. Trichomes |
iv) which are characteristic of cacti (Opuntia
spp.) in the New World, are modified leaves |
Match correctly following combination of barrier developed by plants ;
#Question id: 46
#I Life Science/ Life Sciences Group – I-V
The three-dimensional structure of a protein is determined primarily by:
#Question id: 19123
#SCPH06 I Botany