OBJECTIVES & FILL IN THE BLANKS OF CELL: Plasma membran & Cytoplasm
rubabMultiple Choice Questions (MCQs) Amount of protein in cell membrane is: (a) 10% (b) 30% (c) 60% (d) 20% Amount of lipids in cell membrane is: (a) 10% (b) 30% …
HOW CELLS HARVEST ENERGY STORED IN NUTRIENTS
abidaRESPIRATION Animals require a constant supply of energy. This energy performs biological work. The ATP provides this energy. All animals can generate ATP by breaking down organic nutrients. These nutrients…
MECHANISM OF PHOTOSYNTHESIS LIGHT DEPENDENT OR LIGHT REACTION
sanaPHOTO-SYSTEMS Photosynthetic pigments are organized into clusters called photo-systems. These photo-systems absorb and utilize the solar energy efficiently in the thylakoid membranes. Each photo-system is composed of two parts. I.…
SUBJECTIVE & SHORT QUESTIONS OF CELL: Plasma membran & Cytoplasm
Describe different structures of plasma membrane. Describe fluid mosaic membrane. Describe different movements across plasma membrane. Describe physio-chemical nature of cytoplasm. SHORT QUESTIONS Give chemical composition of plasma membrane.…
Multiple Choice Questions MCQs OF ENERGY AND ENZYME
Four options are given at the end of each statement. You should encircle one option from them. The chief source of energy is:a) Potential (b) solar (c) Chemical (d) Kinetic…
Absorption VS Action spectra
Light is electromagnetic energy. Electrochemical energy travels in the form of waves. The distance between the crest of the electromagnetic waves is called wavelength. The entire range of radiations is…
DEFINITIONS AND KEY POINTS of CELL: Plasma membran & Cytoplasm
TERMS DEFINITIONS Homeostasis The maintenance of a constant internal environment despite fluctuations in the external environment is called homoeo stasis. Diffusion The movement of molecules from the area of higher…
PROCESS OF PHOTOSYNTHESIS
Photosynthesis (photo-light, synthesis-putting together) may be defined as the process in whieh the green plants synthesize carbohydrates from carbon dioxide and water, using the energy of sunlight. 673 K cal…
MODEL SUBJECTIVE QUESTION OF ENERGY AND ENZYME
What is energy? Give its forms. How is it measured? Discuss laws of thermodynamics. Write note on activation energy. Write note on enzyme. Give structure of enzyme. Describe function of…
Physio – Chemical Nature of Cytopsasm
The living content of the protoplasm between plasma membrane and nucleus is called cytoplasm. Living content of eukaryotes is divided in to nucleus and cytoplasm. These living contents (nticlebs and…