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What are the sub-units of nucleic acids called? nucleotides
What is a change that affects the activity of the organism? Stimulus
What is reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents? Sexual Reproduction
What is reproduction that doesn't involve the union of sex cells and in which one parent produces offspring identical to itself? Asexual Reproduction
What is the passing of traits from one generation to the next? Heredity
What is the total of all the chemical activities an organism performs? Metabolism
What is the smallest unit that can perform all life processes? A cell
What is the maintenance of a stable internal environment? Homeostasis
What is an organism that makes its own food? A producer
What is an organism that eats other organisms or organic matter? A consumer
What is an organism that breaks down the remains of dead organisms or animal waste to get energy? A decomposer
What is the major energy-carrying molecule in the cell? ATP
What is molecule made entirely of sugars? A carbohydrate
What is a molecule that is sometimes called the blueprint of life? A nucleic acid
What is a large molecule made of smaller molecules called amino acids? A protein
What is a molecule that forms much of the cell membrane? A phospholipid
What is an energy storing compound that cannot mix with water? A lipid
A flame can move, grow larger and give off heat. Is a flame alive? Explain. No, a flame is not alive. It does not have cells or reproduce using sexual or asexual reproduction.
In an organism with many cells there are different cells that can perform different functions. But what if an organism is single celled? Then, different parts of the one cell perform the different functions.
When your pupils are exposed to light what happens to them? What happens in the dark? In light, your pupils with contract, or get smaller. In dark, your pupils will expand, or grow larger.
Give three examples of stimuli. Gravity, light, sound
How do some organisms keep homeostasis? Some organisms move from one environment to the next to keep stable conditions.
How do most single-celled organisms reproduce? Asexual Reproduction
How do most multi-cellular organisms reproduce? Sexual Reproduction
What does DNA do? DNA controls the structure and function of cells, and ensures that offspring resemble their parents.
What do living things use energy for? to make food, break down substances and move materials in and out of cells
How does a single-celled organism grow and develop? The cell gets larger and divides, making other organisms.
How do multi-cellular organisms grow and develop? The number of cells get larger and the organism gets bigger.
How much of your body is made of water? 70%
How many days could you survive without water? about 3 days
What gases does air contain? Oxygen and carbon dioxide
How does limited space on Earth affect organisms? Organisms must compete for the their needs.
What does food give organisms? Food gives organisms energy and the raw materials they need to carry on life processes.
How to organisms get the amino acids they need for their cells? Organisms break down the proteins from food to supply their cells with amino acids.
What kind of protein starts or speeds up the chemical reactions in cells? enzymes
What are carbohydrates used for? a source of energy and for energy storage
What are the two kinds of carbohydrates? simple and complex carbohydrates
What element can lipids not mix with? water
What are fats and oils? lipids
What must the energy from lipids and carbohydrates be transferred to? ATP
What element is sometimes called the blueprints of life? Nucleic Acids
What element is DNA a part of? Nucleic Acids
Created by: ScienceWhiz