[RMD] plant growth and development

a student conducts an experiment on decorative plants. He varies the type of fertilizers that been used for each pot, those are fertilizer A, B, and C. Data about plant height and number of flowers are recorded daily for 21 days. The independent variable of this experiment is ...

• decorative plant

• numbers of flower

• plant height

• types of fertilizer

• humidity of planting media

The table below shows data of an experiment about the effect of media on the growth of groundnut. Same volume of media are used. Each set of plant is watered with the same amount of water and same frequency. Data started to be recorded when the first plumule emerges. What can be concluded from this experiment?

• groundnut stem elongation is inhibited by the presence of wet cotton

• groundnut can only grow if being planted in soil

• growth of groundnut is highly depend on the presence of water

• growth of groundnut is faster if the seeds are planted in soil

• growth of groundnut is not affected by wet cotton

.... plays role on primary growth, while .... plays role on secondary growth.

• intercalary meristem, apical meristem

• lateral meristem; apical meristem

• lateral meristem; intercalary meristem

• apical meristem; lateral meristem

• apical meristem; intercalary meristem

.... plays role on primary growth, while .... plays role on secondary growth.

• intercalary meristem, apical meristem

• lateral meristem; apical meristem

• lateral meristem; intercalary meristem

• apical meristem; lateral meristem

• apical meristem; intercalary meristem

what is the correct order of layers in mature stem from the innermost to the outermost?

• pith-secondary xylem-primary xylem-vascular cambium-primary phloem-secondary phloem-cork-cork cambium

• pith-secondary phloem-primary phloem-vascular cambium-primary xylem-secondary xylem-cork-cork cambium

• -pith-secondary phloem-primary phloem-vascular cambium-primary xylem-secondary xylem-cork cambium-cork

• pith-primary xylem-secondary xylem-vascular cambium-secondary phloem-primary phloem-cork cambium-cork

• pith-primary phloem-secondary phloem-vascular cambium-secondary xylem-primary xylem-cork-cork cambium

which of the following is not a principle of plant development?

• the presence of actively dividing cells in meristem makes plant able to develop continuously

• plant tissue culture is an example of artificial reverse development in plant

• development of plant is really flexible so that a cell can be a whole new plant

• once a plant produces fruits, its development process stops

• the final shape of a plant organ is determined by the rate of cell division in that part

where does the intercalary meristem located?

• at the tip of radish root

• at the tip of mung bean bud

• at the top of coleus leaves

• at the internodes of sugarcane plant

• in between the xylem and phloem of mango tree

in mature plant, function of protection is given by the presence of ...

• epidermis

• vascular cambium

• xylem

• cork

• phloem

a phenomenon shown in picture below is mainly promoted by the presence of ...

• Auxin and ABA

• Ethylene and Cytokinin

• ABA and Gibberellin

• ABA and Ethylene

• Cytokinin and Auxin

a farmer has problem about how to keep his product, that is cut flowers, to stay fresh during shipment. what can you suggest to solve this problem?

• he could try to spray artificial auxin to prolong the freshness

• he could try to infuse the flower with solution of gibberellin

• he could try to put the flowers in tubes containing ethylene

• he could try to apply cytokinin to prolong the freshness

• he could try to inject a proper amount of ABA to the flowers