Cell wall is made up mainly of
A) Glucose
B) Fructose
C) Maltose
D) Cellulose
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Complete the following table on the basis of previous knowledge. Cell type ; Cell wall
Characters Monera Protista Fungi Plantae Cell type Prokaryotic Eukaryotic Eukaryotic Eukaryotic Cell wall Present (Peptidoglycan) Present in some organisms Present (chitin) Present (cellulose) Nuclear membrane Absent Present Present Present Body organization Unicellular Unicellular Multicellular/ loose tissue Tissue /orga Mode of nutrition Heterotrophic (saprophytic/ parasitic) Autotrophic Photosynthetic, Heterotrophic Heterotrophic (saprophytic/ parasitic) Autotrophic Photosynth Ecological role Decomposers Producers and consumers Decomposers Producers and consumers
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300 men can construct a200m long wall in 12 days working 8 hours a day. In how many days can 120 men construct 180 m long wall working 9 hours per day
\(\frac{M_1D_1H_1}{W_1}=\frac{M_2D_2H_2}{W_2}\) M1 = 300, D1 = 12, H1 = 8, W1 = 200 M2 = 120, D2 = ? H2 = 9, W2 = 180 \(\frac{300\times12\times8}{200}=\frac{120\times D\times7}{180}\) D = 24 days
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A 13-m long ladder is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 2 m/s. How fast
Correct Answer - `(5)/(6) m//s`
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Distinguish between an adiabatic wall and diathermic wall.
Adiabatic wall Diathermic wall i. An ideal wall or partition separating two systems such that no heat exchange can take place between the systems is called adiabatic wall. A wall that allows exchange of...
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The outermost covering of animal cell is A) cell wall
B) plasma membrane
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Cell membrane is made up of mainly A) lipids and fats
B) lipids and proteins
2 Answers 1 views
Read the following statements. a) Cell wall is made up of cellulose and it is dead in nature.
D) Both a, b correct
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A man shouts loudly close to a high wall. He hears an echo. If the man is at 40 m from the wall, how long after the shout will the echo be heard?
Given: s = 40m, v = 330 m/s To Find: time (t) Formula: Time = distance \(\frac{distance}{speed}\) Calculation: The distance travelled by the sound wave = 2 × distance from man to wall. = 2 × 40...
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How cell wall is formed in plant cell?
The formation of the new cell wall begins with the formation of a simple precursor, called the ‘cell-plate’ that represents the middle lamella between the walls of two adjacent cells.
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A heavy truck and bicycle hit a wall, with same velocity. More damage to the wall expected from
A) heavy truck
2 Answers 1 views