During an exothermic reaction, the energy given off comes from

a. atoms being consumed

b. mass being turned into energy

c. the breaking and forming of bonds

d. mass being created

Fast question! Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water.

Which statement about enzymes is FALSE? Select one: a. Enzymes may be damaged by high temperature. b. Most enzymes can catalyze millions of reactions per minute. c. Enzymes require contact with substrate in order to assume their active form. d.

What is the answer : The cells plasma membrane most resembles which system of the human body? A. Circulatory B. Digestive C. Musculoskeletal and D. Integumentary

N three (3) sentences, explain the function of a vacuole in plant cells.

Which of the following is NOT a function of the digestive system? A. ingestion of food B. digestion of food C. absorption of food D. elimination of digestible wastes E. elimination of nondigestible waste

What system includes oceans, lakes, rivers, and groundwater? a. geosphere b. hydrosphere c. atmosphere d. biosphere

Fungal spores a. are only asexually produced. b. cannot be seen in a light microscope. c. are used to identify fungi. d. are produced by molds but not by yeasts. e. are only produced under harmful environmental conditions

Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm.

What's the function of rough er

Milo is observing the things around his family's farm. He writes down four different resources and whether he thinks they are renewable or nonrenewable. The table below shows his notes.