Which organelle is INCORRECTLY paired with its function?
Ribosomes - Protein synthesis
Mitochondria - Carbohydrate storage
Golgi apparatus - Protein modification and packaging
Lysosomes - Intracellular digestion
Related Questions
Highly durable and commercial valuable wood of the following is?
Spring wood
Heart wood
Late wood
Sap wood
Late wood has fewer and narrower xylary elements than early wood. Which of the following best explains this observation?
Increased cambial activity during spring
Reduced cambial activity during winter
Higher water availability during summer
Lower nutrient availability during autumn
The cork cambium, cork and secondary cortex are collectively called
Phellogen
Periderm
Phellem
Phelloderm
Science, which deals with the study of ageing is known as
Teratology
Gerontology
Limnology
Palaeontology
Heartwood differs from sapwood in
Presence of rays and fibres
Absence of vessels and parenchyma
Having dead and non-conducting elements
Being susceptible to pests and pathogens
Which of the following is the correct sequence of tissues from the periphery to the center in a mature, woody dicot stem?
Secondary xylem, secondary phloem, secondary cortex, periderm
Periderm, secondary cortex, secondary phloem, secondary xylem
Secondary phloem, secondary xylem, periderm, secondary cortex
Secondary cortex, periderm, secondary xylem, secondary phloem
Heartwood does NOT contribute to which of the following functions?
Structural support to the tree
Transport of water and minerals
Storage of organic compounds
Resistance to decay
Periderm includes
I. Phellem
II. Phellogen
III. Phelloderm
Select the correct option
I and II
II and III
III and I
I, II and III
I. It is resistant to microorganisms II. It comprises dead elements III. It comprises highly lignified cell wall IV. It is the peripheral part V. It is dark and tough Which of the above property doesn’t belongs to heart wood?
I and II
Only IV
Only V
III and I
The activity of the vascular cambium leads to an increase in the:
Length of the stem or root
Number of leaves
Girth of the stem or root
Number of root hairs
