Science Midterm

The human body had many cells that are deep inside the body.For this reason the human body requires A) Transport system and other organs B) carbon dioxide from the air C) the synthesis of many inorganic compounds D) the breakdown of glucose by the digestive system

A) Transport system and other organs

fat molecules typically contain long chains of carbon atoms. Animals tend to store fats for use when food resources are scarce. This is an advantage to the animal because A) much energy can be gained by breaking bonds between atoms in the fats B)fats give off carbon dioxide that can be used by the muscles C)amino acids from fat synthesis are more easily digested than carbohydrates D) energy can only be created by digesting fats

A) much energy can be gained by breaking bonds between atoms in the fats

The absorption of fluids by various cells of the human body is a part of life function known as A) excretion B) Transport C) respiration D) growth

B) Transport

The cytoplasm in a single-celled organism and the circulatory system in a human both A) breakdown molocules into smaller components B) release energy to be used by the organism C) transport substances throughout the organism D) distribute blood to all of the parts of the organism

C) transport substances throughout the organism

Organisms contain compounds such as proteins, starches and fats. The chemical bonds in these compounds can be a source of A) amino acids B)simple sugars C)energy D) enzymes

C)energy

Respiration is best described as a process by which A)necessary nutrients are circulated B)hydrogen is used to synthesize glucose C) metabolic wastes are absorbed D) chemical energy is converted into a usable form

D) chemical energy is converted into a usable form

Which system in a multicellular organism functions most like the cytoplasm in a single celled organism A) immune B) reproductive C) nervous D) circulatory

D) circulatory

A hydra ingests a daphnia, digests it, and later egests(gets rid of) some materials. All of these events are most closely associated with the life process known as A) transport B) synthesis C)growth D) nutrition

D) nutrition

Materials are transported within a single-celled organism by the A) nucleus B) cytoplasm C) mitochondrion D) ribosome

D) ribosome

Which compound is a polysaccharide? A)glucose B) Maltase C)ribose D) starch

D)Starch

Which process is a form of autotrophic nutrition? A)transport B)regulation C)fermentation D)photosynthesis

D)photosynthesis

By which process is the potential energy of organic molecules transferred to a form of energy that is usable by the cells? A) digestion B) Hydrolysis C)photosynthesis D)respiration

D)respiration

Nutrition involves those activities by which organisms A)remove cellular waste products B)obtain and process materials needed for the other activities C)exchange gases with their environment D) absorb and circulate materials

Obtain and process materials