Biology Class Test Plants Flashcards
(24 cards)
What are plants (2)
Producers and Autotrophs (auto = self+ troph = feeding) self feeding
How do plants produce their own food?
Photosynthesis
How many types of organs do plants have ?
4
What are the 4 main types of organs
- Reproductive structures
- leaves
- stems
- roots
What are the reproductive structures for ?
- function to make more plants
- include flowers, fruit, cones, and seeds
What are the leaves for ?
- primary site of photosynthesis
- gaseous exchange
What are stems for?
- support to elevate the leaves
- transport water and nutrients between roots and shoots
- stores water and nutrients
What are roots for ?
- anchor the plant
- absorb minerals (vitamins) and water
- store nutrients
3main functions of roots
- absorption of water and mineral salts from the soil of photosynthesis
- anchorage of the plant, to keep it firmly in the soil.
- storage of nutrients and food.Some plants have roots that store food that plants make from starch
2 types of roots
Taproot
Fibrous
What is a taproot
One very big root that goes into the ground with Luther small roots around it
What is a fibrous
Have many roots going in all directions
5 main functions for stems
Support Transportation (water, gases nutrients…) Protection (infection, insects, birds…) Increasing the height ( to increase the amount of exposure it receives to sunlight ) Photosynthesis
What is located in the leaves
Photosynthesis
Gaseous exchange
Carbohydrates
Are from the pigment chlorophyll which uses the energy form the sun to from carbohydrates
Stomata
There are tiny pores mostly under the leaf which allow carbon dioxide, oxygen and water vapor to enter or exit the plant, these pores are called stomata
Plants that loose their leaves during winter are called …
Deciduous
Plants that keep their leaves in winter are called …
Ever-green
Different structures in a leaf
Petiole
Blade
Midrib
Veins
Petiole
Connects leaf to the stem , hold leaf away from other elevates so that each leaf is exposed to ,maximum sunlight
Blade
Contains chloroplasts for maximum photosynthesis, the larger the leaf the greater the surface area for photosynthesis.
Midrib
Continuation of the petiole, main vein in the leaf , helps to keep the leaf in an upright position and gives it strength
Veins
Transport water and minerals from the roots to ever part of the leaf, also transport food made by leaves to the rest of the plant
What are 4 types of leaves
Pinnate Reticulate Palmate 3 main veins parallel
