Biology Test

Bases

Adenine (A), Thymine (T), Cytosine (C), & Guanine (G) are the ____________ for DNA

Osmosis

During the process of ____________, water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (It moves along the water concentration gradient).

First Law of Thermodynamics

Energy cannot be created or destroyed

Phospholipid bilayers

From what substance do liposomes spontaneously form

Require no oxygen

Glycolysis is an anaerobic process, indicating that Glycolytic reactions

Provided by Carbon Dioxide

I'm Photosynthesis, the carbon used to make sugars is

Enzymes

Needed for nearly all chemical reactions

Sugars

Photosynthetic organisms capture energy from sunlight & convert it into chemical bonds by forming _________

Golgi Apparatus

Receives proteins and lipids & sends them to their final destinations

plasma membrane

Resembles screen door

NADH, ATP, FADH2

The Kreb's cycle produces

Environment

The energy required for life processes must be extracted from an organisms ________________

Carbon fixation

The enzyme rubisco is important to this process

Smooth Endoplasmic Reticulum

The site where lipids are manufactured

Glycolysis

The step of cellular respiration that occurs outside the mitochondria

Water

The ultimate source of oxygen used by all aerobic organisms come from

1. All living things are made up of cells. 2. Cells are the smallest working units of all living things. 3. All cells come from preexisting cells through cell division.

What are the three stages of cell theory?

Glycolysis, Kreb's cycle, and oxidative phosphorylation

What are the three stages of cellular respiration?

The cycle uses ATP & NADPH to produce sugars

Which beat summarizes the Calvin Cycle?

NADH

Which molecule carries electrons to the electron transport chain of oxidative phosphorylation?

They are both metabolic processes

Which of the following is a similarity between photosynthesis & cell respiration

small hydrophobic molecules

Which of the following would be likely to move through a plasma membrane by simple diffusion?

Provides a barrier between an external & internal environment; creates an internal environment where specific chemical reactions needed to establish a living cell can occur separately from the external environment

Why are liposomes important

Catabolic

_____________ reactions release energy by breaking down complex molecules into simpler molecules

Enzymes can catalyze a reaction only if

they encounter a substrate that fits their active site