Concept explainers
Introduction:
Plants are composed of a root system and a shoot system. They perform different, but coordinated functions. The growth of the plants is due to the meristem cells that are of two types: apical meristems and lateral meristems. The meristem cells are undifferentiated, and after division these cells get enlarged, and contribute to the growth of plants.
Answer to Problem 1TYK
Correct answer:
The major difference between the plants and the animals is that animals have a determinate growth, while plants have indeterminate growth.
Explanation of Solution
Explanation for the correct answer:
Option (d) states that animals have a determinate growth, while the plants have indeterminate growth. Determinate growth is defined as the growth that slows down or stops once the organism has reached a certain size. On the contrary, indeterminate growth is defined as the growth that takes place throughout the life, irrespective of one’s size. Most plant species have parts that grow throughout their life, but animals can grow only up to a certain point of time in their life. Hence, option (d) is correct.
Explanation for incorrect answer:
Option (a) states that the growth in plants generally involves an increase in the summation of the number of cells. The growth of plants not only occurs as increase in number of cells, but also as increase in the girth and height of the plant. Meristems consist of undifferentiated actively dividing cells; after division and enlargement they become specialized, and contribute to the increase in the girth and height of the plant. So, it is an incorrect option.
Option (b) states that the cells in the plants remain approximately of the similar size after the cell division, however in animal cells the increase in the size occurs, even after they are formed. After cell division, the animal cells remain almost the same size, whereas the meristem cells of plant divide, and after division they get enlarged and acquires certain specialized function. So, it is an incorrect option.
Option (c) states that woody tissues are formed in the plants during their growth. Dicotyledonous plants that undergo secondary growth (with lateral meristems) form woody tissues; not all plants form woody tissues. So, it is an incorrect option.
Option (e) states that plants can grow only when they are young, while animals tend to exhibit the grow throughout its life-time. Animals have determinate type of growth, that is, they can grow only up to a certain point of time, and up to a certain size and height. Plants have indeterminate type of growth; they can grow throughout their life. So, it is an incorrect option.
Hence, option (a), (b), (c), and (e) are incorrect.
Thus, it can be concluded that most plant species have parts that grow throughout their life, but animals can grow only up to a certain point of time in their life.
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Chapter 33 Solutions
Biology: The Dynamic Science (MindTap Course List)
- Which of the following is NOT a function of the stem in a plant? Which of the following is NOT a function of the stem in a plant? A) absorb water B) store nutrients C) produce new plant cells D) support flowers and leavesarrow_forwardLike many multicellular organisms, plants have organs that perform specific functionsWhich of the following correctly pairs a plant organ with its function? ANSWER CHOICES ARE IN THE PHOTO. thanksarrow_forwardTwo major processes are involved in the dissipation of heat from plant leaves: convection of heat, and(a) Photosynthesis (b) Stomatal Conductance (c) Mineral Nutrition (d) Transpiration (e) Growtharrow_forward
- Which of these conclusions can be made about a plant leaf without the use of microscope technology? (a) a leaf is multicellular (b) a leaf is made of one cell (c) a plant's cells are all identical (d) a plant's cells are all differentarrow_forwardDo the images from Dana's investigation support the claim that plants are living organisms? Support your answer with evidence.arrow_forwardPhloem is a tissue found in: A. reproductive organs of animals B. plants C. insects D. mammalsarrow_forward
- Why do trees grow and stop at different heights? For example an American Beech tree grows to a height of 50-70 feet but the Coastal Redwood grows to a height of 380 feet. Why is there such a big difference in growth and what makes the tree not grow forever?arrow_forwardA mutant plant has roots that grow in all directions. Which of the following organelles would you expect to be missing in the cell? a. mitochondria b. amyloplast c. chloroplast d. nucleusarrow_forwardDescribe the journey of a carbon atom. Begin with it as atmospheric CO2 and end with it as part of a cell wall molecule in a root. Describe a) the structures through which the C atom moves, b) the reason it moves, and c) any cellular process with which it is involvedarrow_forward
- Translocation mainly involves the movement of products from the leaves where they are synthesized, to other plant parts like the roots, where photosynthesis does not occur. Which of the following cells make up the tissue that is involved in the process of translocation? * A. companion cells B. vessels C. tracheids D. sieve tubesarrow_forwardOne of the following plant organs does not have any modification for any purpose. a. Leaf b. Stem c. Root d. nonearrow_forwardWhat type of plant tissue permits all plants to keep growing throughout life?arrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning