Growth In Plants Flashcards
Growth is the _____________ or ____________ increase of an____________ by _____________ and _____________.
Growth is the permanent or irreversible increase of an organism by dry mass and number of cells.
Plant Growth is determined by?
Height of plant
Length of Root
Number of leaves
Thickness or diameter of bark
Presence of flowers and fruits
Phototropism ______________ plants to grow _______________ the ______________.
Phototropism enables plants to grow towards the sunlight.
Growth occurring in the shoot tips ______________exposure to ___________ which _____________the rate of _________________.
Growth occurring in the shoot tips maximizes exposure to sunlight which increases the rate of photosynthesis.
Hormones called ______________ enable _______________________ of the shoot tips. This __________the plant to __________ towards sunlight.
Hormones called auxins enable rapid cellular growth on the shaded regions of the shoot tips. This enables the plant to bend towards sunlight.
When auxin enables the rapid cellular growth on the shaded regions of the shoot tips bending the plant towards the light, this is known as _______________ which is ______________as it occurs ______________.
When auxin enables the rapid cellular growth on the shaded regions of the shoot tips bending the plant towards the light, this is known as nastic growth which is reversible as it occurs as a response to Stimulus.
Let’s say you have an apparatus with a box and a plant inside and there is a window allowing light to pass through in the Box and the stems of the plant Inside the Box bends towards the light, why is this happening? What is the process known as?
The growth of cells happen faster in the Shaded areas, which is the part not exposed to light, this occurs because of auxin which accumaletes in that region, the cells divide faster and the shades side becomes heavier than the side receiving light causing the plant to bend towards the sunlight( Stimulus). This is called a growth movement.
Gravitropism or Geotropism occurs because plants respond to ___________. This facilitates ______________ and__________ by there stem and leaves.
Gravitropism or Geotropism occurs because plants respond to Gravity. This facilitates maximum exposure to water by the roots and sunlight by there stems and leaves.
Roots have a ___________ growing ________ of___________.
Roots have a positive response growing in the direction of gravity.
Shoots have a _________ growing in the direction __________ to _________.
Shoots have a negative response growing in the direction opposite to gravity.
In plants, where does growth mainly occur?
It mainly occurs on meristematic regions.
How long does plant growth continue?
It continues throughout the life span of the plant.
