5th Grade Science Flashcards: Animals Use Energy For Growth

What this deck covers

This deck focuses on Animals Use Energy For Growth, giving you a quick way to review the definitions, rules, and examples that matter most for 5th Grade Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Identify the correct match: bones and tissues use food energy mainly for growth, movement, or warmth.

Answer: Growth and repair. Building new tissue requires energy and raw materials.

Flashcard 2: Which body system breaks food into smaller molecules the body can use for energy?

Answer: Digestive system. Breaks down food into nutrients small enough to enter cells.

Flashcard 3: What is repair in animals best described as, in terms of energy use?

Answer: Using energy to replace or fix damaged cells and tissues. Healing requires energy to rebuild damaged structures.

Flashcard 4: What do animals use energy from food for when they walk, swim, fly, or run?

Answer: Movement (muscle contraction). Muscles need energy to contract and create motion.

Flashcard 5: What is the main purpose of the energy animals get from food?

Answer: To power life processes such as growth, movement, and warmth. Energy from food fuels all activities that keep animals alive and active.

Flashcard 6: What is the main purpose of energy animals get from food?

Answer: To power life processes such as growth, movement, and warmth. Energy from food fuels all activities that keep animals alive.

Flashcard 7: What is the term for the energy used for breathing, heartbeat, and digestion even at rest?

Answer: Maintenance energy (basic life processes). Essential functions continue even during rest.

Flashcard 8: Which body system moves oxygen to cells so they can release energy from food?

Answer: The respiratory system. Lungs take in oxygen needed for cells to release energy from nutrients.

Flashcard 9: What is the process called when an animal breaks down food to release usable energy?

Answer: Digestion. Breaks complex food molecules into simpler nutrients the body can absorb.

Flashcard 10: Choose the better conclusion: In cold weather, an endotherm needs more, less, or equal food energy.

Answer: More food energy. Maintaining body temperature in cold requires extra energy.

Flashcard 11: Which type of animal uses food energy to maintain a nearly constant body temperature?

Answer: Endotherm (warm-blooded animal). These animals generate internal heat through metabolism.

Flashcard 12: Which nutrient is mainly used to build and repair body tissues rather than as first energy?

Answer: Proteins. Body uses proteins for structure, not primary energy.

Flashcard 13: Which option best completes this statement: If an animal eats more energy than it uses, the extra is mostly  .

Answer: Stored as fat. Excess calories convert to fat for long-term energy storage.

Flashcard 14: Identify what happens to some food energy during cellular respiration: it becomes motion, heat, or both.

Answer: Both motion and heat. Energy transforms into mechanical work and thermal energy.

Flashcard 15: Identify the energy use: An animal adds muscle and increases in mass over months.

Answer: Growth. Building new tissue requires energy over extended time.

Flashcard 16: Which nutrient is the body most likely to use first as a quick energy source?

Answer: Carbohydrates. Simple sugars and starches break down fastest for immediate energy.

Flashcard 17: Which option best explains why a lizard basks in the sun to become more active?

Answer: It gains heat from the environment to power movement. Cold-blooded animals absorb external heat to activate their metabolism.

Flashcard 18: Identify the energy use: A bird shivers to stay warm on a cold morning.

Answer: Warmth (thermoregulation). Shivering generates heat through rapid muscle contractions.

Flashcard 19: Which body system breaks food into smaller molecules animals can absorb for energy?

Answer: The digestive system. Breaks down food mechanically and chemically for absorption.

Flashcard 20: Which nutrient is the body's main quick source of energy for many animals?

Answer: Carbohydrates. Simple sugars provide immediate energy for cells.

Flashcard 21: Which type of animals use food energy to maintain a nearly constant body temperature?

Answer: Endotherms (warm-blooded animals). These animals generate their own body heat using food energy.

Flashcard 22: Identify the best explanation for why shivering helps a human stay warm.

Answer: Muscle movement uses energy and produces heat. Rapid muscle contractions burn energy and generate warmth as a byproduct.

Flashcard 23: Choose the better conclusion: A lizard basking in the sun is mainly gaining warmth from food or environment.

Answer: Environment. Ectotherms rely on external heat sources, not food energy.

Flashcard 24: Which body process uses food energy to increase an animal's size over time?

Answer: Growth. Energy builds new cells and tissues as organisms develop.

Flashcard 25: Identify the body system that uses food energy to move the body.

Answer: The muscular system (working with the skeletal system). Muscles pull on bones to create body movements.

Flashcard 26: Which option best explains why endotherms need more food than similar-sized ectotherms?

Answer: They use more energy to maintain body temperature. Constant internal heating requires continuous energy.

Flashcard 27: Which type of animals must use energy from food to keep their body temperature stable?

Answer: Endotherms (warm-blooded animals). They generate internal heat to maintain constant temperature.

Flashcard 28: Which nutrient is commonly used for building and repairing body tissues?

Answer: Proteins. Made of amino acids that form muscles and other structures.

Flashcard 29: Which option best completes this statement: Food energy can be converted into   for warmth.

Answer: Heat energy. Chemical energy from food converts to thermal energy.

Flashcard 30: Which option best completes this statement: If an animal uses more energy than it eats, it will likely  .

Answer: Lose mass by using stored energy. Body breaks down fat and muscle tissue when food energy is insufficient.

Flashcard 31: What is the term for energy stored in the body as fat for later use?

Answer: Energy reserves (stored fat). Body stores excess energy as fat for times when food is scarce.

Flashcard 32: Which type of animals rely mostly on the environment for body warmth?

Answer: Ectotherms (cold-blooded animals). These animals absorb heat from their surroundings.

Flashcard 33: Which body process uses food energy to repair damaged tissues?

Answer: Tissue repair (building new cells). Energy powers cell division to replace damaged cells.

Flashcard 34: What is growth in animals best described as, in terms of energy use?

Answer: Using energy to build new cells and tissues. Growth requires energy to create proteins and other molecules for new cells.

Flashcard 35: Which option best describes what happens to some food energy during cellular respiration: stored, destroyed, or released as heat?

Answer: Released as heat. Energy conversion is never 100% efficient; some becomes thermal energy.

Flashcard 36: What is the main purpose of the energy animals get from food?

Answer: To power life processes such as growth, movement, and warmth. Food energy fuels all activities that keep animals alive.

Flashcard 37: What is the term for energy used to power muscle actions such as walking or flying?

Answer: Movement. Muscles convert chemical energy into mechanical work.

Flashcard 38: What is the name for stored energy in an animal's body that can be used later?

Answer: Energy reserves (often stored as fat). Animals store excess energy for times when food is scarce.

Flashcard 39: Which nutrient provides quick energy and is often used first by the body?

Answer: Carbohydrates. Sugars and starches break down rapidly for immediate use.

Flashcard 40: Which nutrient stores a large amount of energy for later use?

Answer: Fats (lipids). Each gram contains more than twice the energy of carbohydrates.

Flashcard 41: What do muscles use energy from food for during physical activity?

Answer: Muscle contraction for movement. Energy powers the proteins that make muscle fibers shorten and move.

Flashcard 42: Which nutrient stores a large amount of energy and is used for long-term energy needs?

Answer: Fats (lipids). Each gram of fat contains twice the energy of carbohydrates.

Flashcard 43: Which option best explains why a lizard may eat less on cool days than on warm days?

Answer: As an ectotherm, it is less active and uses less energy when cool. Cold temperatures slow metabolism in cold-blooded animals.

Flashcard 44: Identify the correct outcome: If an animal eats more energy than it uses, what happens to the extra energy?

Answer: It is stored, mainly as fat. Excess energy converts to fat for long-term storage.

Flashcard 45: Which type of animal relies mostly on the environment for body heat?

Answer: Ectotherm (cold-blooded animal). Body temperature changes with surroundings to save energy.

Flashcard 46: Which option best describes why animals must eat regularly: growth, movement, warmth, or all?

Answer: All of them. Animals need energy for multiple life processes simultaneously.

Flashcard 47: Identify the correct outcome: If an animal uses more energy than it eats, what happens over time?

Answer: It loses mass by using stored energy. Body breaks down fat and muscle when energy intake is insufficient.

Flashcard 48: Identify the correct match: muscles use food energy mainly for growth, movement, or warmth.

Answer: Movement. Muscle contractions require energy to produce force.

Flashcard 49: What is the term for using energy to build new body tissues and increase size?

Answer: Growth. Energy builds proteins and cells to increase body mass.

Flashcard 50: Which nutrient is most directly used to build and repair body tissues during growth?

Answer: Protein. Amino acids from proteins form the building blocks of new tissues.

Flashcard 51: Which type of animals depends mostly on the environment for body temperature control?

Answer: Ectotherms (cold-blooded animals). Their body temperature varies with surroundings.

Flashcard 52: What do animals use energy from food for when they build new body tissue?

Answer: Growth and repair. Energy builds new cells and fixes damaged ones.

Flashcard 53: Which body system delivers nutrients from digested food to body cells?

Answer: The circulatory system. Blood vessels transport digested nutrients throughout the body.

Flashcard 54: Which organ system brings oxygen to cells so they can release energy from food?

Answer: The respiratory system. Oxygen is essential for cellular respiration to release energy.

Flashcard 55: Which organ system transports nutrients and oxygen to body cells for energy use?

Answer: The circulatory system. Blood carries fuel and oxygen to cells throughout the body.

Flashcard 56: Choose the best explanation for why young animals need more food energy per body size than adults.

Answer: They need extra energy for rapid growth and development. Growing bodies build new tissues faster, requiring more energy per pound.

Flashcard 57: Which organ system breaks food into smaller molecules that cells can use for energy?

Answer: The digestive system. Breaks down food mechanically and chemically for absorption.

Flashcard 58: Which option best describes what happens to unused energy from food in many animals?

Answer: It is stored, often as fat. Excess energy converts to fat for future use.

Flashcard 59: Identify the energy use: A rabbit runs from a predator using rapid muscle action.

Answer: Movement. Escape response requires immediate muscle energy.