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Front

What is cystic fibrosis and what genotype is required to have it?

Back

Cystic fibrosis is an autosomal recessive disorder. An individual must have the genotype 'ff' to have cystic fibrosis.

Front

What are the characteristics of passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy. It occurs along the concentration gradient.

Front

At which trophic level would you find herbivores?

Back

Herbivores are found at Level 2 in the trophic levels.

Front

How many protons are in one atom of Lithium (Li)?

Back

One atom of Lithium (Li) has 3 protons.

Front

What property of water allows water molecules to form hydrogen bonds with each other?

Back

The property of water that allows this is called cohesion.

Front

Define autosomal recessive disorder.

Back

An autosomal recessive disorder is a genetic condition that occurs when an individual inherits two copies of a recessive allele, one from each parent.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an individual, while phenotype refers to the observable traits or characteristics.

Front

Explain the concept of concentration gradient.

Back

A concentration gradient is the difference in the concentration of a substance across a space. Molecules move from areas of higher concentration to areas of lower concentration.

Front

What is the role of herbivores in an ecosystem?

Back

Herbivores play a crucial role in ecosystems by consuming plants, which helps to control plant populations and provides energy to higher trophic levels.

Front

What is the significance of hydrogen bonds in water?

Back

Hydrogen bonds in water contribute to its unique properties, such as high surface tension, cohesion, and the ability to dissolve many substances.