Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
INSTRUCTIONS: Match each structure with the appropriate description (write the capital letter of your choice). Choices for functions may be repeated. (EXAMPLE: 1. B;5)
![Structure
Description
A. flat leaflike stem
Function
1. Ligule
1. coils around an object for support
2. used for gas exchange
B. swollen base of an aerial shoot
coered with dry leaves
C. horizontally oriented stems that grow
along the soil surface.
D. sieve cells with albuminous cells
2. Stipule
3. Bract
3. replace petals and attract
pollinators
4. vegetative propagation.
4. Bud
scales
5. Pulvinus
E. fluid filled sac-like structures found at
the base of the compound leaf and
each leaflet.
F. fibrous sheath around vascular
bundles
5. for vegetative
propagation; storage of starch.
6. Com
for starch production through
photosynthesis
7. extensible support in the stem
7. Cladophyll G. hairy projection of the lamina in
grasses
8. Stolons.
H. fluid containing canals of the stele
8. folds the leaflets for protection
9. Tubers
I. foral leaves that fom at the base of a
flower or flower stalk
9. added surface area for
photosynthesis
10. Rhizome
10. prevents water and dirt from
accumulating between the sheath
and the stem.
11. protect buds from frost, desiccation
and pathogens
J. tough, overlapping, waterproof leaves
K. swollen vertically oriented stem
L. leaflets that develop at the base of the
leaf
M. below the ground stem with fleshy
horizontal growth](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46da2696-f5ce-4a25-b838-7850650c3923%2F83dc85b0-86fe-48e9-b6b1-431d7f7d17ba%2Fjqu1zb8_processed.png&w=3840&q=75)
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