General Science Flashcards
7 cards from real Picat practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Science flashcards as text
Which organelle is responsible for producing most of the energy (ATP) in a cell?
Answer: Mitochondria
Mitochondria generate ATP through cellular respiration and are often called the powerhouse of the cell.
How many chambers does the human heart have?
Answer: 4
The human heart has four chambers: the left and right atria and the left and right ventricles.
Which type of blood cell is primarily responsible for fighting infections?
Answer: White blood cells
White blood cells (leukocytes) are the main components of the immune system that identify and destroy pathogens.
What term describes organisms that can produce their own food using sunlight?
Answer: Autotrophs
Autotrophs, such as plants and algae, use photosynthesis to convert sunlight and CO₂ into glucose.
What is the basic unit of heredity that carries genetic information?
Answer: Gene
A gene is a specific sequence of DNA that codes for a particular trait or protein.
Which organ is responsible for filtering blood and producing urine?
Answer: Kidney
The kidneys filter waste products and excess water from the blood, excreting them as urine.
Which type of reproduction requires only one parent and produces offspring that are genetically identical to the parent?
Answer: Asexual reproduction
Asexual reproduction, such as budding or binary fission, produces genetically identical clones from a single parent.