Year 11 revision Flashcards
(27 cards)
What is the basic unit of life?
Cell
True or False: DNA is made up of amino acids.
False
Fill in the blank: The process by which plants make their own food is called __________.
Photosynthesis
What is the role of ribosomes in a cell?
Protein synthesis
Which organelle is known as the powerhouse of the cell?
Mitochondria
Multiple choice: Which of the following is a type of cell division?
Mitosis
Define osmosis.
The movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.
What is the function of chlorophyll?
To absorb light energy for photosynthesis.
True or False: A gene is a segment of DNA that codes for a protein.
True
What are the four bases of DNA?
Adenine, Thymine, Cytosine, Guanine
Fill in the blank: The human body’s basic unit of structure and function is the __________.
Cell
What is the role of enzymes in biological reactions?
To speed up the reactions by lowering the activation energy.
Multiple choice: Which process occurs in the mitochondria?
Aerobic respiration
What is the function of the cell membrane?
To regulate what enters and exits the cell.
True or False: Prokaryotic cells have a nucleus.
False
What is a phenotype?
The observable characteristics of an organism.
Fill in the blank: The __________ is the part of the cell that contains the genetic material.
Nucleus
What is the difference between aerobic and anaerobic respiration?
Aerobic respiration requires oxygen, while anaerobic respiration does not.
Multiple choice: Which of the following is NOT a macromolecule?
Water
What is the function of the ribosome?
To synthesize proteins.
True or False: The heart is part of the digestive system.
False
Define homeostasis.
The maintenance of a stable internal environment in an organism.
What are the three main types of blood vessels?
Arteries, veins, capillaries
Fill in the blank: The __________ is responsible for transporting oxygen in the blood.
Hemoglobin
