State whether the given statements are true (T) or false (F).
1. The process of breakdown of food into carbon dioxide and water with the release of energy is called
photosynthesis.
2. Organisms respiring in the presence of oxygen are called aerobes.
3. In cactus, photosynthesis takes place in the stem.
4. Green plants respire anaerobically.
5. Growing parts of a plant respire actively.
Answers
Answer:
1- false
2- true
3- true
4- false
5- true
Explanation:
i am confident with these answers. if you want to cross check then you can do it
1 Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
2 An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment. Several varietis of aerobes exist. Obligate aerobes require oxygen for aerobic cellular respiration.
3 But Cactus has no leaves . Its leaves are modified into spines, an adaptation to reduce transpiration. Thus the mainstream photosynthetic activity takes place in the stem of the cacti where relatively more amount of chloroplasts are present than the rest parts.
4 This statement is false. All leaves of a green plant normally respire aerobically at night.
5 The highest rate of respiration are found in the actively growing root and stem tips, cambium and embryos of germinating seeds and lowest rates in dormant seeds or spores. As, the growing tips are generally rich in meristematic tissues the rate of respiration is also high.