In roots, where will new growth occur?
A - Epidermis
B - Cortex
C - Meristem
D - Mesodermis
E - Endodermis
Answer: C - Meristem
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Plant Biology
- Nitrogen is part of what vital substance in plant cells?
- What term describes the process of converting atmospheric nitrogen to ammonia?
- The relationship between nitrogen-fixing bacteria and legumes can best be described as
- The earth's atmosphere is made up of several components including carbon, oxygen, and nitrogen. About how much of the atmosphere is nitrogen?
- Organisms that fix atmospheric nitrogen into a suitable form for plants and humans are
- Some flowers, such as daffodils and pansies, are often yellow in color. Which of the following is most likely method of pollination?
- A certain plant develops incomplete flowers that do not have a scent. Which of the following is the most likely method of pollination?
- Which of the following terms best describes when a grain of pollen from an anther is placed on a stigma?
- Occasionally, there is a strange illness that kills bees. What is a likely side effect of this disease on plants?
- What is the purpose of a pollen tube?
- Why is the stigma generally sticky?
- What whorl in a flower contains the petals and attracts pollinators?
- Some plants, such as elm trees, lack one or more whorls of a flower. What term best describes these flowers?
- Which whorl of a flower contains anthers and filaments?
- Which of the following structures is not found in the gynoecium whorl?
- What structure associated with phloem carries out metabolic activities for the phloem?
- Which of the following is NOT an example of a sugar sink?
- The pressure flow hypothesis can be used to explain
- Which of the following is the best example of a sugar source?
- Insects often eat leaves and other plant structures in order to obtain nutrients such as sugar. Which location in a plant will most likely provide sugars for the insect because it is a part of the phloem?
- The attraction of water molecules to other water molecules is best described as
- Xylem is composed of dead cells lined end to end. What is responsible for making these cells strong and durable even though they are no longer living?
- What two factors are mainly responsible for the movement of water from the roots up through the leaves?
- The release of water in plants, causing the change in water potential allowing the movement of water in the xylem, is best known as
- The individual units of xylem that have tapered ends are called