1. Classify the following plants as monocots and dicotsRice, Pea, Grass, Brinjal. 2. State any three points of differences between monocots and dicots. 3. State one point of difference between the following on the basis of what is given in the brackets i. Striated muscles and unstriated muscles (control) ii. Xylem and phloem (direction of transport) iii. Molluscs and echinoderms (movement) iv. Aerobic respiration and anaerobic respiration (amount of energy released) v. Cocci and bacilli (shape) 4. Find the odd one out. i. Lungs, Bronchi, Trachea, Kidneys ii. Annelida, Arthropoda, Reptilia, Nematoda iii. Euglena, Spirogyra, Amoeba, Chlorella iv. Pituitary, Thyroid, Adrenal, Spinal cord v. Penguin, Ostrich, Vulture, Kiwi 5. Explain movement in Amoeba and Paramoecium. 6. Define the following. i. Classification ii. Binary fission iii. Vertebrates iv. Photosynthesis v. Sensory nerve 7. What are the symptoms of food allergy? 8. In which phylum is liverfluke placed? Why? 9. What are the main functions of cerebellum? 10. Leaves of a healthy potted plant were coated with Vaseline. Will this plant remain healthy for long? Give reasons. 11. State the differences between respiration and photosynthesis.
Answers & Comments
- Monocots: Rice, Grass
- Dicots: Pea, Brinjal
2. **Three Points of Differences Between Monocots and Dicots:**
- **Number of Cotyledons:** Monocots have one cotyledon, while dicots have two.
- **Leaf Venation:** Monocots typically have parallel venation, while dicots have reticulate (net-like) venation.
- **Vascular Bundles in Stem:** In monocots, vascular bundles are scattered, and in dicots, they are arranged in a ring.
3. **Differences:**
i. **Striated muscles and unstriated muscles (control):** Striated muscles are under voluntary control, while unstriated muscles are under involuntary control.
ii. **Xylem and phloem (direction of transport):** Xylem transports water and minerals upward, while phloem transports food (sugar) bidirectionally.
iii. **Molluscs and echinoderms (movement):** Mollusks typically move using a muscular foot, while echinoderms move through a water vascular system and tube feet.
iv. **Aerobic respiration and anaerobic respiration (amount of energy released):** Aerobic respiration releases more energy (ATP) compared to anaerobic respiration.
v. **Cocci and bacilli (shape):** Cocci are spherical bacteria, while bacilli are rod-shaped bacteria.
4. **Odd One Out:**
ii. Annelida, Arthropoda, Reptilia, Nematoda (Reptilia - because it is a class of vertebrates, while others are phyla)
5. **Movement in Amoeba and Paramecium:**
- **Amoeba:** Moves using pseudopodia (temporary extensions of the cell membrane).
- **Paramecium:** Moves using cilia, hair-like structures that beat in coordinated patterns.
6. **Definitions:**
i. **Classification:** The systematic arrangement of organisms into hierarchical groups based on shared characteristics.
ii. **Binary fission:** A form of asexual reproduction where a cell divides into two identical daughter cells.
iii. **Vertebrates:** Animals with a backbone or spinal column.
iv. **Photosynthesis:** The process by which green plants and some other organisms convert light energy into chemical energy in the form of glucose.
v. **Sensory nerve:** A nerve that carries sensory information from the sensory organs to the central nervous system.
7. **Symptoms of Food Allergy:**
- Symptoms may include hives, itching, swelling, abdominal pain, nausea, vomiting, diarrhea, difficulty breathing, and anaphylaxis in severe cases.
8. **Phylum of Liverfluke:**
- Liverfluke is placed in the phylum Platyhelminthes (flatworms) due to its flat, leaf-like body structure.
9. **Functions of Cerebellum:**
- Coordination of voluntary movements, maintenance of balance, and muscle tone.
10. **Effect of Vaseline on Plant Health:**
- Coating leaves with Vaseline can block stomata, leading to reduced gas exchange. This can hinder photosynthesis and affect the plant's overall health.
11. **Differences Between Respiration and Photosynthesis:**
- **Respiration:** Process of releasing energy from organic compounds; occurs in all living cells; involves the breakdown of glucose; produces carbon dioxide and water.
- **Photosynthesis:** Process of synthesizing organic molecules using light energy; occurs in plant cells; involves the synthesis of glucose; consumes carbon dioxide and produces oxygen.
Verified answer
Answer:
monocots are pea,rice,grass and rest of them are dicots
monocots and dicots
having one seed. having two seeds
as mono means one. as di means two
ex pea,maize. ex mango