chem Flashcards
What is the function of the cell membrane?
The cell membrane controls the movement of substances in and out of the cell.
True or False: The nucleus contains the cell’s genetic material.
True
Fill in the blank: The process by which plants make their own food is called ______.
photosynthesis
What are the two main types of cells?
Prokaryotic and eukaryotic cells.
Which organelle is responsible for energy production?
Mitochondria
Multiple Choice: Which of the following is NOT a type of tissue? A) Connective B) Epithelial C) Mitochondrial D) Muscle
C) Mitochondrial
What is the primary function of ribosomes?
To synthesize proteins.
True or False: DNA is made up of amino acids.
False
Fill in the blank: The basic unit of life is the ______.
cell
What is the role of chloroplasts in plant cells?
To carry out photosynthesis.
Multiple Choice: What type of bond holds the two strands of DNA together? A) Ionic B) Covalent C) Hydrogen D) Metallic
C) Hydrogen
What is the function of the lysosome?
To break down waste materials and cellular debris.
True or False: All cells have a cell wall.
False
Fill in the blank: The ______ is the powerhouse of the cell.
mitochondria
What is the process called when a cell divides to form two daughter cells?
Mitosis
Multiple Choice: Which of the following is a function of the skeletal system? A) Support B) Blood cell production C) Protection D) All of the above
D) All of the above
Define homeostasis.
The maintenance of a stable internal environment within an organism.
True or False: Enzymes are proteins that speed up chemical reactions.
True
Fill in the blank: The ______ system is responsible for transporting blood throughout the body.
circulatory
What are the four main types of biomolecules?
Carbohydrates, lipids, proteins, and nucleic acids.
Which structure regulates the entry and exit of substances in and out of the cell?
Cell membrane
Multiple Choice: What is the primary function of the digestive system? A) To provide structure B) To break down food C) To circulate blood D) To protect against disease
B) To break down food
What is the role of the immune system?
To defend the body against pathogens.
True or False: The brain is part of the peripheral nervous system.
False
Fill in the blank: The ______ is the largest organ in the human body.
skin
What is the function of the endocrine system?
To produce and secrete hormones that regulate various bodily functions.
Multiple Choice: Which organ is responsible for filtering blood? A) Heart B) Liver C) Kidneys D) Lungs
C) Kidneys
What is the function of the respiratory system?
To exchange gases (oxygen and carbon dioxide) between the body and the environment.
True or False: Photosynthesis occurs in mitochondria.
False
Fill in the blank: The ______ is responsible for coordinating voluntary movements.
cerebellum
What is the primary role of red blood cells?
To transport oxygen throughout the body.
Multiple Choice: Which of the following is a function of proteins? A) Energy storage B) Catalyzing reactions C) Providing structure D) All of the above
D) All of the above
What is the basic structure of DNA?
A double helix composed of nucleotides.
True or False: The liver is involved in detoxification.
True
Fill in the blank: The ______ system regulates body temperature.
integumentary
What is osmosis?
The movement of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
Multiple Choice: Which type of RNA carries amino acids to the ribosome? A) mRNA B) tRNA C) rRNA D) siRNA
B) tRNA
What is the primary component of the cell wall in plants?
Cellulose
True or False: The heart is a muscle that pumps blood.
True
Fill in the blank: The ______ is where protein synthesis occurs.
ribosome
What is the function of the Golgi apparatus?
To modify, sort, and package proteins for secretion.
Multiple Choice: What type of cell division produces gametes? A) Mitosis B) Meiosis C) Binary fission D) Budding
B) Meiosis
What is the role of the pancreas in digestion?
To produce enzymes and hormones that help regulate blood sugar levels and aid in digestion.
True or False: All organisms are made up of cells.
True
Fill in the blank: The ______ is the part of the brain that controls basic life functions.
brainstem
What is a mutation?
A change in the DNA sequence that can lead to changes in protein structure and function.
Multiple Choice: Which of the following is a function of lipids? A) Energy storage B) Insulation C) Cell membrane structure D) All of the above
D) All of the above
What is the primary role of the small intestine?
To absorb nutrients from digested food.
True or False: The skeletal system has no role in movement.
False
Fill in the blank: The ______ is the site of gas exchange in the lungs.
alveoli
What is the role of the hypothalamus?
To regulate body temperature, hunger, and thirst.
Multiple Choice: Which part of the neuron receives signals? A) Axon B) Dendrites C) Cell body D) Synapse
B) Dendrites
What is the function of the large intestine?
To absorb water and electrolytes, and to prepare waste for elimination.
True or False: The process of cellular respiration occurs in the mitochondria.
True
Fill in the blank: The ______ is responsible for filtering and processing blood.
liver
What is the primary function of the urinary system?
To remove waste products from the body and regulate water balance.
Multiple Choice: Which type of blood vessel carries blood away from the heart? A) Veins B) Arteries C) Capillaries D) None of the above
B) Arteries
What is the role of the skin?
To protect the body, regulate temperature, and provide sensory information.
True or False: All enzymes function optimally at the same temperature.
False
Fill in the blank: The ______ is the basic functional unit of the kidney.
nephron
What is the function of antibodies?
To identify and neutralize pathogens.
Multiple Choice: Which of the following is a characteristic of living organisms? A) Growth B) Reproduction C) Response to stimuli D) All of the above
D) All of the above
What is the primary role of the circulatory system?
To transport nutrients, gases, hormones, and waste products throughout the body.
True or False: The ribosome is involved in DNA replication.
False
Fill in the blank: The ______ is responsible for coordinating the body’s responses to stimuli.
nervous system
What is the function of the spleen?
To filter blood and help fight infections.
Multiple Choice: Which process involves the movement of substances against their concentration gradient? A) Diffusion B) Osmosis C) Active transport D) Passive transport
C) Active transport
What is the primary role of the endocrine system?
To regulate bodily functions through hormones.
True or False: The hypothalamus is part of the limbic system.
True
Fill in the blank: The ______ is the site of protein synthesis.
ribosome
What is the function of the adrenal glands?
To produce hormones that help regulate metabolism, immune response, and stress.
Multiple Choice: Which of the following is NOT a component of blood? A) Red blood cells B) Plasma C) Platelets D) Nerve cells
D) Nerve cells
What is the primary function of the skeletal muscle?
To facilitate movement of the body.
True or False: The pancreas produces insulin.
True
Fill in the blank: The ______ system is responsible for producing offspring.
reproductive
What is the primary function of the immune system?
To protect the body from infections and diseases.