6 Questions
What is the main function of the plasma membrane?
To regulate what enters and leaves the cell
Which organelle is responsible for generating energy for the cell?
Mitochondria
What is the primary function of the epithelial tissue?
To form the lining of organs and glands
Which system is responsible for transporting oxygen and nutrients to cells?
Circulatory System
What is the process by which cells convert light energy into chemical energy?
Photosynthesis
What is the main function of the endocrine system?
To produce and regulate hormones
Study Notes
Cell Biology
Cell Structure
- Plasma Membrane: semi-permeable membrane that regulates what enters and leaves the cell
- Cytoplasm: jelly-like substance inside the cell membrane where metabolic processes occur
- Nucleus: control center of the cell where DNA is stored
- Mitochondria: organelles responsible for generating energy for the cell
- Endoplasmic Reticulum (ER): network of membranous tubules and cisternae involved in protein synthesis and transport
- Ribosomes: site of protein synthesis
Cell Functions
- Metabolism: conversion of energy and nutrients into cellular components
- Photosynthesis: process by which cells convert light energy into chemical energy
- Cell Division: process of cell growth and reproduction (mitosis, meiosis)
Structures
Tissue Types
- Epithelial Tissue: forms lining of organs and glands, protects underlying tissues
- Connective Tissue: provides support and structure to the body
- Muscle Tissue: responsible for movement and contraction
- Nervous Tissue: transmits and processes information
Organ Systems
- Nervous System: controls and coordinates body functions
- Circulatory System: transports oxygen and nutrients to cells
- Respiratory System: brings oxygen into the body and removes carbon dioxide
- Digestive System: breaks down and absorbs nutrients from food
- Endocrine System: produces and regulates hormones
- Immune System: defends the body against pathogens and disease
- Integumentary System: protects the body from external damage
- Muscular System: facilitates movement and maintains posture
- Skeletal System: provides support and protection to the body
Test your knowledge of cell structure, functions, and tissue types. Learn about the components of a cell, cell division, metabolism, and more. Explore the different types of tissues and organ systems in the human body.
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