Plant Tissues

Plant Tissues are stationary or fixed and most of them are dead. Dead cells provide mechanical strength and needs less maintenance. Some plant tissues divide through out the life while others not. So based on their dividing capacity, plant tissues are classified into: Meristematic Tissues and Permanent Tissues.

Cell Cycle & Cell Division

Q.1: The Mitosis phase usually ends with ______________. a) karyokinesis b) cytokinesis c) both Q.2: Which of the following events characterize the anaphase stage ? i) Chromatids move to opposite poles. ii) Centromeres split and chromatids separate iii) Spindle fibres attach to kinetochores of chromosomes. a) only i b) only iii c) i and iiContinue reading “Cell Cycle & Cell Division”

Respiratory Volumes & Capacities

Tidal Volume: Volume of air inspired or expired during a normal respiration is known as “Tidal Volume”. Approximately 6000 to 8000 mL of air per minute is inspired or expired by a healthy man.

Chemical Coordination & Integration

Q.1: The atrial wall of our heart secretes ________________, which reduces blood pressure. a) GIP