Quiz on Plant Systems 10B

The diagram show the reproductive system of a plant. Which of the following best describes the interaction that occurs between a plants reproductive arts during fertilization?

• Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches the filament, where the sperm fertilizes the egg.

• Pollen moves from the ovule up through the stule and is released from the stigma. The pollen is transferred to the anther, where the sperm fertilizes the egg.

• Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary, where the sperm fertilizes the egg.

• Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the filament, where the sperm fertilizes the egg.

The internal transport of water and minerals in plants requires that two systems work together. Which correctly describes how the two systems accomplish this task?

• absorption through the root system, then transport through the shoot system by vascular tissue and stomata in leaf tissue

• exchange of minerals for water in the root system, then transport of minerals through phloem to leaves in the stem system

• transpiration by the guard-cell and leaf systems, then sweating into the soil by the root system

• absorption of water by the leaf system, then transport through the meristematic system

Structures represented in the illustration below are found in the lower epidermis of a plant leaf. The illustration at right shows the response to a certain environmental condition. The response represented in the illustration would most likely be caused by --

• a reduced supply of oxygen

• long periods of rainfall

• high concentrations of glucose

• little available water

Tags

NGSS.HS-LS1-3

Several structures work together to allow flowering plants to reproduce. The diagram shows a typical flower. Which table correctly identifies the function of each structure or group of structures in the reproduction of a plant?

• X-pollen production, Y-pollen transfer, Z-production of eggs

• X-attraction of pollinators, Y-production of male sex cells, Z-egg production and embryo development

• X-protection for embryo, Y-supply nourishment to embryo, Z-place of embryonic development

• X-photosynthesis, Y-production of cells that protect internal organs, Z-production of egg and sperm

Cytokinins are a class of plant hormones that help regulate growth by promoting cell division. Cytokinins are produced mainly in meristematic tissue, where most plant growth occurs. Which system carries cytokinins produced in the roots to the rest of the plant?

• vascular system

• dermal system

• reproductive system

• none of these