cells to systems

Question 1

what are the 5 levels

Answer 1

• cells
• tissue
  -organs
  -system
  -organism

Question 2

organization of plant- cells

Answer 2

-parenchyma cells- the major cells of plants, responsible for photosynthesis.

-sclerenchyma cell and collenchyma- provide support to the plant

-xylem cells- responsible for the transport of water and minerals from the roots to the leaves

-phloem cells- responsible for the transport of sugars and other nutrients throughout the plant.

Question 3

plant tissues

Answer 3

-dermal tissue- the single layer of cells covering the outside of a plant

-ground tissue- makes up the majority of the interior of the plant and carry out metabolic functions.

-vascular tissue- runs through the ground of the vascular plants, carrying water and nutrients

Question 4

plant organs

Answer 4

leaves- sites of gas exchange and responsible for photosynthesis

flowers- the sexual reproductive organ

fruit- protects seeds and attracts animals that aid with seed dispersal

stems- support the leaves, fruit and transport of water and minerals.

roots- absorption and storage of water and nutrients from the soil

Question 5

plant system

Answer 5

shoot- produces sugars by photosynthesis and carries out reproduction

root- anchors the plants, penetrates the soil and absorbs water and minerals. stores food.

Question 6

organization of animals- cells

Answer 6

consists of skin, muscle, blood and nerve

Question 7

animal tissues

Answer 7

muscle tissue- contracts to exert force. consists of skeletal, cardiac and smooth muscle

nervous tissue- detects stimuli and transmits electrical signals. composed of neurons.

connective tissue- connects and supports the other tissues and organ structures of the body.

epithelial tissue- composes the external ad internal layers. these protect, secrete and absorb.

Question 8

animal organ

Answer 8

there are many major including heart, brain, liver and lungs

Question 9

animal systems

Answer 9

digestive system- breaks down and processes food

excretory system- removes waste from the blood via excretion. consists of the control of water balance in the body.

endocrine system- responsible for the production and secretion of hormones which control and regulate bodily processes.