Ap Biology Lab Report
55. a) Cuticles on the outermost layer of angiosperms are clear, which allows for light to pass through. The leaf is shaped in a way that will allow it to absorb more sunlight and be more efficient. Photosynthesis takes place in the spongy parenchyma and the palisade parenchyma. In order to obtain food, it is controlled by the stoma which controls the passage of gas and water.
b) Water and food is transported through the xylem. The water will eventually be transported to the leaf tissue while the phloem carries nutrients from the leaf tissue to the rest of the plant. This process is able to carry out due to bulk flow which happens because of turgor pressure. Water is eventually lost by a process known as transpiration, where water is evaporated …show more content…
In a flowering plant, the water travels from the soil, then to the root hairs, next to the xylem, then into the stomata, to the mesophyll cells, next to the stoma, then finally into the atmosphere. Osmosis is the diffusion of water through semipermeable membranes. Transpiration is the evaporation of water from the leaf. Cohesion is when water molecules stick together. Adhesion is when water molecules stick to, not attract. Root pressure is force made by root on water columns. Water potential is the negative pressure in leaves, which is positive in roots.
60. a) Flowers are developed in order to reproduce and flowers help by attracting animals to pollinate. Pollen are for males, and seeds are for females. The seeds are coated with a hard outer layer to protect it and fruits are made so animals can eat them and the seeds will spread by the means of their feces. Seeds can also be dormant for a long time.
b) Roots are there to help hold the plants to the ground, stems are for support, vascular tissue to help hold the shape of the plant, and cell walls are more rigid because of turgor pressure.
c) The cuticle was developed, which is a waxy outer layer found in the leaves in order to prevent water from leaving the plant, and the xylem transports
b) Water and food is transported through the xylem. The water will eventually be transported to the leaf tissue while the phloem carries nutrients from the leaf tissue to the rest of the plant. This process is able to carry out due to bulk flow which happens because of turgor pressure. Water is eventually lost by a process known as transpiration, where water is evaporated …show more content…
In a flowering plant, the water travels from the soil, then to the root hairs, next to the xylem, then into the stomata, to the mesophyll cells, next to the stoma, then finally into the atmosphere. Osmosis is the diffusion of water through semipermeable membranes. Transpiration is the evaporation of water from the leaf. Cohesion is when water molecules stick together. Adhesion is when water molecules stick to, not attract. Root pressure is force made by root on water columns. Water potential is the negative pressure in leaves, which is positive in roots.
60. a) Flowers are developed in order to reproduce and flowers help by attracting animals to pollinate. Pollen are for males, and seeds are for females. The seeds are coated with a hard outer layer to protect it and fruits are made so animals can eat them and the seeds will spread by the means of their feces. Seeds can also be dormant for a long time.
b) Roots are there to help hold the plants to the ground, stems are for support, vascular tissue to help hold the shape of the plant, and cell walls are more rigid because of turgor pressure.
c) The cuticle was developed, which is a waxy outer layer found in the leaves in order to prevent water from leaving the plant, and the xylem transports