Biology
Identify the false statements and rewrite them correctly by changing the first or last word only.
(a) Dark reaction of photosynthesis occurs during night time.
(b) Photosynthesis requires enzymes.
(c) Green plants are consumers.
(d) Photosynthesis results in loss of dry weight of the plants.
(e) Photosynthesis stops at a temperature of about 35°C.
(f) Photosynthesis occurs only in cells containing chloroplasts.
(g) Green plants perform photosynthesis.
(h) Algae are autotrophs.
Photosynthesis
82 Likes
Answer
(a) False
Corrected statement — Dark reaction of photosynthesis occurs simultaneously with light reaction.
(b) True
(c) False
Corrected statement — Green plants are producers.
(d) False
Corrected statement — Respiration results in loss of dry weight of the plants.
(e) False
Corrected statement — Photosynthesis stops at a temperature of about 40°C.
(f) True
(g) True
(h) True
Answered By
50 Likes
Related Questions
Name the following:
(a) The category of organisms that prepare their own food from basic raw materials.
(b) The kind of plastids found in the mesophyll cells of the leaf.
(c) The compound which stores energy in the cells.
(d) The first form of food substance produced during photosynthesis.
(e) The source of CO2 for aquatic plants.
(f) The part of chloroplast where the dark reaction of photosynthesis takes place.
Given below are groups of terms. In each group, the first pair indicates the relationship between the two terms. Complete the second pair accordingly.
(a) Chlorophyll : Magnesium :: Haemoglobin : …………… .
(b) Light reaction : Granum :: Dark reaction : …………… .
(c) Producers : Autotrophs :: Consumers : …………… .
(d) Respiration : Carbon dioxide :: Photosynthesis : …………… .
(e) Water and minerals : Xylem :: Prepared food : …………… .
Fill in the blanks with the appropriate answer from the choices given in the brackets.
(a) The site of light reaction in the cells of a leaf is …………… (cytoplasm, stroma, grana).
(b) The chemical substance used to test the presence of starch in the cell of a leaf is …………… (CaCl2, iodine solution, Benedict solution).
(c) Stroma is the ground substance in …………… (cytoplasm, chloroplast, ribosomes).
(d) The dark reaction of photosynthesis is known as …………… (Hill reaction, cyclic phosphorylation, Calvin cycle).
(e) In the flowering plants, food is transported in the form of …………… (sucrose, glucose, starch).
Are the following statements true or false? Give reason in support of your answer.
(a) The rate of photosynthesis continues to rise as long as the intensity of light rises.
(b) The outside atmospheric temperature has no effect on the rate of photosynthesis.
(c) If you immerse a leaf intact on the plant in ice cold water, it will continue to photosynthesise in bright sunshine.
(d) Destarching of the leaves of a potted plant can occur only at night.
(e) If a plant is kept in bright light all the 24 hours for a few days, the dark reaction (biosynthetic phase) will fail to occur.
(f) Photosynthesis is considered as a process supporting all life on earth.