Answer the following question given this paragraph: All chemical reactions need energy to get started. Even reactions that release energy need a boost of energy in order to begin. The energy needed to start a chemical reaction is called activation energy . Activation energy is like the push a child needs to start going down a playground slide. The push gives the child enough energy to start moving, but once she starts, she keeps moving without being pushed again. Activation energy is illustrated in Figure below . Q: What is the amount of energy required to begin a chemical reaction known as? Choices: - decomposition energy - reaction energy - positive energy - activation energy A:
activation energy
Answer the following question given this paragraph: An ecosystem is a group of living things and their environment. It is made up of both living and nonliving things. Q: What is defined as a group of living and nonliving things and their environment? Choices: - habitat - degradation - degradation - ecosystem A:
ecosystem
Q: Answer the following question given this paragraph: Proteins have different shapes and molecular weights; some proteins are globular in shape whereas others are fibrous in nature. For example, hemoglobin is a globular protein, but collagen, found in our skin, is a fibrous protein. Protein shape is critical to its function, and this shape is maintained by many different types of chemical bonds. Changes in temperature, pH, and exposure to chemicals may lead to permanent changes in the shape of the protein, leading to loss of function, known as denaturation. All proteins are made up of different arrangements of the same 20 types of amino acids. Q: Changes in temperature, ph, and exposure to chemicals may lead to permanent changes in the shape of a protein, leading to loss of function known as what? Choices: - digestion - fermentation - bioturbation - denaturation A:
A: denaturation
Question: Answer the following question given this paragraph: The hypothalamus is part of the brain and also secretes hormones, thus connecting the nervous and endocrine systems. The pituitary gland is the master gland of the endocrine system and controls other endocrine glands. Endocrine glands also include the thyroid gland, adrenal glands, pancreas, and gonads. Q: What is the master gland of the endocrine system? Choices: - Thyroid - Hypothyroid - Thymus - pituitary gland A:
Answer: pituitary gland
*Question*
Answer the following question given this paragraph: Dehydration and hydrolysis reactions are catalyzed, or "sped up," by specific enzymes; dehydration reactions involve the formation of new bonds, requiring energy, while hydrolysis reactions break bonds and release energy. These reactions are similar for most macromolecules, but each monomer and polymer reaction is specific for its class. For example, in our bodies, food is hydrolyzed, or broken down, into smaller molecules by catalytic enzymes in the digestive system. This allows for easy absorption of nutrients by cells in the intestine. Each macromolecule is broken down by a specific enzyme. For instance, carbohydrates are broken down by amylase, sucrase, lactase, or maltase. Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases. Breakdown of these macromolecules provides energy for cellular activities. Q: Lipids are broken down by what? Choices: - hydrolysis - triglycerides - amino acids - lipases A:
**Answer**
lipases
Q: Answer the following question given this paragraph: Q: What is the energy of motion called? Choices: - binary energy - potential energy - mixed energy - kinetic energy A:
A: kinetic energy