Midterm review Biology

Enzymes catalyze reactions by ___________ Activation Energy.

• Increasing

• Decreasing

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Which of the following converts food into energy for the cell?

• vacuole

• mitochondria

• cytoplasm

• cell membrane

What is something that prokaryotic and eukaryotic cells have in common?

• They have a nucleus. 

• They are multi-cellular. 

• They have DNA, ribosomes, cytpoplasm and a cell membrane - all cells have these!

• They have organelles that are membrane-bound.

Active transport does not require energy.

• True 

• False 

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

These molecules represent which organic molecule?

• proteins
• lipids
• nucleic acids
• carbohydrates

In this image, the cell is using which type of molecular transport?

• Osmosis
• Diffusion 
• Endocytosis
• Exocytosis 

Movement of materials down the concentration gradient through a protein channel (helper) channel is an example of 

• facilitated diffusion

• active transport

• respiration

• osmosis 

Which of the following statements best describes the cell cycle? 

• Cell grows, replicates its DNA,grows some more then splits up DNA through a process called mitosis and becomes two new cells

• Interphase is the growth phase, mitosis is the reproductive phase

• Cytokinesis occurs during S pjase

• Cytokinesis is the reproductive phase, S-phase is the growth phase