Biology Topic 1: cells
State the function of the chloroplast
Absorb light for photosynthesis
Which blood vessel has walls that are one-cell thick?
Capillaries
Which type of pathogen causes plants to develop rose black spot disease?
Which of the following is a product in anaerobic respiration in yeast/plants?
A) Ethanol B) Water C) Glucose D) Lactic acid
A) Ethanol
Why are electron microscopes better at showing cells in more detail than light microscopes?
Electron microscopes have a higher magnification and resolution
What type of cells can differentiate (turn) into any type of cell?
A) Adult stem cells B) Embryonic stem cells
B) Embryonic stem cells
Which ventricle in the heart pumps blood to the lungs?
Right ventricle
Antibiotics only destroy?
Anaerobic respiration in humans releases lactic acid. What effect does lactic acid have on the body?
Muscle pain
Muscle soreness
Muscle cramps
Potato cubes left in pure water increase in mass. This because moves into the potato cells from high to low concentration by what process?
Osmosis
Sperm cells are adapted to swim long distances because they contain a lot of _________ to release energy.
mitochondria
Which organ release enzymes into the small intestine to digest proteins, lipids and carbohydrates?
Pancreas
Name the main symptom of Malaria
Fever
In the pondweed practical investigating the effect of light intensity and rate of photosynthesis. What do the bubbles you count represent?
(The volume of) oxygen
Testing for which nutrient requires you to add Benedict's solution and heat the food sample in a water bath to check for a brick red colour?
Sugar
When minerals in soil move from low concentration to high concentration in root hair cells, what is the name of the process that requires energy to do this?
Active transport
Name two substances transported in the blood plasma?
White blood cells
Which type of respiration releases more energy, aerobic or anaerobic repsiration?
Aerobic respiration
Amylase in the saliva breakdown which nutrient into simple sugars?
What is the capital of Italy?
Rome
amino acids
A vaccine contains a __________ or _________ form of a pathogen to trigger white blood cells to produce antibodies
dead or weakened form of a pathogen
Name 2 limiting factors for photosynthesis
Carbon dioxide concentration
Temperature
Light intensity
Amount of chlorophyll
What reagent (chemical) do you add along with water to test for lipids in a food sample
Ethanol